45 results on '"Han C. G. Kemper"'
Search Results
2. Relationship between carotid intima-media thickness, physical activity, sleep quality, metabolic/inflamatory profile, body fatness, smoking and alcohol consumption in young adults
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Santiago Maillane-Vanegas, Bruna Camilo Turi-Lynch, Fabio Santos de Lira, Jamile Sanches Codogno, Rômulo Araújo Fernandes, Manoel Carlos Spiguel de Lima, Aristides Machado-Rodrigues, and Han C. G. Kemper
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Aatherosclerosis ,insulin resistance ,lipid profile ,diabetes mellitus ,Sports ,GV557-1198.995 ,Sports medicine ,RC1200-1245 - Abstract
Abstract AIM The aim of this longitudinal study was to analyze the relationship between sleep disorder and intima-media thickness. METHOD Baseline measurements included carotid intima-media thickness, assessed by an ultrasound device; questionnaires about sleep and other behavioral variables; physical activity was measured by pedometer; body fatness was estimated by Dual-Energy X-ray Absorptiometry; fasting glucose, lipid profile and C-reactive protein were collected. RESULTS The occurrence rate of sleep-related disorders was 47% (95%CI= 37.2%-56.7%). Carotid intima-media thickness was related to symptoms of insomnia (r= 0.328 [0.141 to 0.493]) and, after adjustments for potential confounders, the relationship between carotid intima-media thickness and insomnia remained statistically significant (β= 0.121 [95%CI= 0.017; 0.225]). CONCLUSIONS In young adults, sleep disorder was significantly related to premature increase in carotid intima-media thickness.
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- 2017
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3. Pediatric Exercise Testing: Value and Implications of Peak Oxygen Uptake
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Paolo T. Pianosi, Robert I. Liem, Robert G. McMurray, Frank J. Cerny, Bareket Falk, and Han C. G. Kemper
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cardiopulmonary exercise testing ,peak oxygen uptake ,aerobic fitness ,Pediatrics ,RJ1-570 - Abstract
Peak oxygen uptake (peak V ˙ O 2 ) measured by clinical exercise testing is the benchmark for aerobic fitness. Aerobic fitness, estimated from maximal treadmill exercise, is a predictor of mortality in adults. Peak V ˙ O 2 was shown to predict longevity in patients aged 7–35 years with cystic fibrosis over 25 years ago. A surge of exercise studies in young adults with congenital heart disease over the past decade has revealed significant prognostic information. Three years ago, the first clinical trial in children with pulmonary arterial hypertension used peak V ˙ O 2 as an endpoint that likewise delivered clinically relevant data. Cardiopulmonary exercise testing provides clinicians with biomarkers and clinical outcomes, and researchers with novel insights into fundamental biological mechanisms reflecting an integrated physiological response hidden at rest. Momentum from these pioneering observations in multiple disease states should impel clinicians to employ similar methods in other patient populations; e.g., sickle cell disease. Advances in pediatric exercise science will elucidate new pathways that may identify novel biomarkers. Our initial aim of this essay is to highlight the clinical relevance of exercise testing to determine peak V ˙ O 2 , and thereby convince clinicians of its merit, stimulating future clinical investigators to broaden the application of exercise testing in pediatrics.
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- 2017
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4. More than Sports Participation: The Role of Ground Reaction Force, Osteocalcin and Lean Soft Tissue on Bone Density Accrual in Adolescents: ABCD Growth Study
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Yuri Ventura da Silva Faustino-da-Silva, Han C. G. Kemper, Santiago Maillane-Vanegas, Pedro Henrique Narciso, Rafael Luiz-de-Marco, Rômulo Araújo Fernandes, Ricardo Ribeiro Agostinete, Universidade Estadual Paulista (UNESP), and Amsterdam Public Health Research Institute
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Male ,musculoskeletal diseases ,Adolescent ,Bone density ,Accrual ,Endocrinology, Diabetes and Metabolism ,Osteocalcin ,osteocalcin ,Body weight ,Lower limb ,Weight-Bearing ,Absorptiometry, Photon ,Bone Density ,sport ground reaction force ,Bone mineral density ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Orthopedics and Sports Medicine ,Ground reaction force ,Swimming ,biology ,business.industry ,Body Weight ,Venous blood sample ,Soft tissue ,biology.protein ,Female ,lean soft tissue ,sports ,business ,human activities ,Sports ,Demography - Abstract
Made available in DSpace on 2022-04-28T19:43:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01 The objective of this study was to identify predictors of 12-mo areal bone density accrual in different body segments, lean soft tissue, and osteogenic characteristics attributed to sports participation among adolescent girls and boys. Adolescents (Girls [n = 64], [aged = 14.7]); Boys [n = 129], [aged = 14.6]) were stratified into three groups according to their engagement in different sports (Control [n = 68], Swimming [n = 25], and Weight-bearing sports [n = 100]). Areal bone density (aBMD [g/cm²]) and lean soft tissue (LST) [kg] were measured by dual-energy x-ray absorptiometry (DXA; Lunar DPX-NT; General Electric Healthcare, Little Chalfont, Buckinghamshire, United Kingdom). The ground reaction force (GRF) index attributed to sports participation (Sport-GRF) was created considering the GRF attributed to each sport, body weight of the adolescent, and the amount of time spent in sports participation. Osteocalcin levels (ng/mL) were estimated from a venous blood sample. Multiple regression analysis showed that after adjusting for covariates, the models involving sport-GRF, LST (Δ), and osteocalcin explained 15.8% to 76.2% of the aBMD gains. Specifically in girls, OC was only associated with lower limb aBMD accrual. In boys, however, sport ground reaction forces were positively associated with total spine aBMD accrual. Furthermore, the LST (Δ) was positively associated with aBMD accrual in all body sites (β = 0.003 to 0.011) in both sexes. Increases in LST contributed significantly to gains in aBMD accrual in both sexes, being a more important predictor of changes in bone outcomes than ground reaction forces and osteocalcin. Post-Graduation Program in Movement Sciences Sao Paulo State University (UNESP) Laboratory of InVestigation in Exercise LIVE Department of Physical Education Sao Paulo State University (UNESP) Amsterdam UMC Amsterdam Public Health Research Institute Post-Graduation Program in Movement Sciences Sao Paulo State University (UNESP) Laboratory of InVestigation in Exercise LIVE Department of Physical Education Sao Paulo State University (UNESP)
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- 2022
5. A good start, but a research article with pros and cons in review
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Han C G, Kemper, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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Pediatrics, Perinatology and Child Health - Published
- 2022
6. The Combined Relationship of Vitamin D and Weight-Bearing Sports Participation on Areal Bone Density and Geometry Among Adolescents: ABCD - Growth Study
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Eduardo Duarte de Lima Mesquita, Isabella Neto Exupério, Ricardo Ribeiro Agostinete, Rafael Luiz-de-Marco, Jéssica Casarotti Miguel da Silva, Santiago Maillane-Vanegas, Han C G Kemper, Rômulo Araújo Fernandes, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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Weight-Bearing ,Absorptiometry, Photon ,Adolescent ,Bone Density ,Femur Neck ,Endocrinology, Diabetes and Metabolism ,Humans ,Radiology, Nuclear Medicine and imaging ,Orthopedics and Sports Medicine ,Vitamin D ,Child ,Sports - Abstract
Osteoporosis is a public health problem, which negatively impacts society and national health services worldwide. Altered mineralization of the skeleton can be caused by persistent vitamin D deficiency. However, the combined impact of both on bone health is still under investigation. In fact, although there is compelling evidence in the literature about the positive effect of weight-bearing sports participation on bone mineral density, its impact on bone geometry gains more attention in pediatric population. The sports modalities that we evaluated were artistic gymnastics and track and field. Nonsports group was composed of 43 adolescents. Bone density was assessed using dual-energy X-ray absorptiometry. Vitamin D concentration was assessed by blood analysis. In the crude comparison of bone outcomes, the sport group presented higher aBMD only in the trochanter (p-value = 0.040). Considering the combination of the engagement in sports and vitamin D, adolescents in the sports group presented significantly higher values of aBMD in lower limbs, whole body, trochanter, shaft, and femur whole body (p-value = 0.024, 0.035, 0.001, 0.019 and 0.003 respectly). In contrast, only the sport group with high vitamin D presented a higher CSA (p-value = 0.015) and femur neck aBMD compared to the non-sport/low vitamin D group. Only adolescents with a combination of sports participation and higher serum concentrations of vitamin D presented better bone geometry, denoting the relevance of the combination of both factors to bone health.
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- 2022
7. Comparison of the Cardiovascular Effects of Extreme Psychological and Physical Stress Tests in Male Soccer Players
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Ákos Móra, Zsolt Komka, József Végh, István Farkas, Gyöngyi Szilágyi Kocsisné, Edit Bosnyák, Márta Szmodis, Roland Ligetvári, Éva Csöndör, Gábor Almási, András Oláh, Han C. G. Kemper, Miklós Tóth, Pongrác Ács, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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Male ,Health, Toxicology and Mutagenesis ,heart rate variability ,Public Health, Environmental and Occupational Health ,blood pressure ,Article ,Running ,Athletes ,Heart Rate ,physical stress ,psychological stress ,Soccer ,Exercise Test ,Medicine ,Humans - Abstract
Background: The purpose of our study was to compare the physiological effects of extreme physical and psychological stress tests in male soccer players, since these two types of stress apply to athletes with high performance requirements. Methods: A total of 63 healthy male soccer players participated in this study, all of whom underwent both of the tests. A physical stress test was carried out in an exercise physiology laboratory, where subjects completed an incremental treadmill running test to full exhaustion, and a psychological test was performed in a military tactical room, where subjects met a street offence situation. Heart rate variability (HRV) and blood pressure (BP) were recorded directly before, immediately after, and 30 min after the stress tests. Results: The majority of HRV indices changed significantly in both stress protocols. Inverse, significant changes (positive for the physical test, negative for the psychological test, p < 0.001) were found when comparing the alterations of HRV indices between the tests. Significant differences were found in the changes in systolic (p = 0.003) and diastolic (p < 0.001) BP between the test protocols, and also between the baseline and post-test measurements (p < 0.001). Conclusion: Both HRV and BP are sensitive physiological parameters to measure the impact of extreme physical and/or psychological stress
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- 2022
8. Physiological and Psychological Responses to a Maximal Swimming Exercise Test in Adolescent Elite Athletes
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Edit Bosnyák, Han C. G. Kemper, Ákos Móra, Dorina Annár, Nikoletta Nagy, Piroska Fehér, Zsófia Sziráki, Márta Szmodis, Gábor Almási, and Annamária Zsákai
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Male ,Swimming exercise ,Adolescent ,Hydrocortisone ,Health, Toxicology and Mutagenesis ,education ,Physiology ,Perceived Stress Scale ,psychology ,Article ,Mood scale ,Heart rate ,medicine ,Humans ,Elite athletes ,swimming ,Saliva ,Testosterone ,Overtraining ,business.industry ,Public Health, Environmental and Occupational Health ,medicine.disease ,Test (assessment) ,overtraining ,Athletes ,physiology ,Exercise Test ,Medicine ,Female ,business ,adolescent elite - Abstract
Background: Continuously rising performances in elite adolescent athletes requires increasing training loads. This training overload without professional monitoring, could lead to overtraining in these adolescents. Methods: 31 elite adolescent athletes (boys: n = 19, 16 yrs, girls: n = 12, 15 yrs) participated in a field-test which contained a unified warm-up and a 200 m maximal freestyle swimming test. Saliva samples for testosterone (T) in boys, estradiol (E) in girls and cortisol (C) in both genders were collected pre-, post- and 30 min post-exercise. Lactate levels were obtained pre- and post-exercise. Brunel Mood Scale, Perceived Stress Scale and psychosomatic symptoms questionnaires were filled out post-exercise. Results: Lactate levels differed between genders (boys: pre: 1.01 ± 0.26, post: 8.19 ± 3.24, girls: pre: 0.74 ± 0.23, post: 5.83 ± 2.48 mmol/L). C levels increased significantly in boys: pre- vs. post- (p = 0.009), pre- vs. 30 min post-exercise (p = 0.003). The T level (p = 0.0164) and T/C ratio (p = 0.0004) decreased after field test which draws attention to the possibility of overtraining. Maximal and resting heart rates did not differ between genders, however, heart rate recovery did (boys: 29.22 ± 7.4, girls: 40.58 ± 14.50 beats/min, p = 0.008). Conclusions: Our models can be used to explain the hormonal ratio changes (37.5–89.8%). Based on the results this method can induce hormonal response in elite adolescent athletes and can be used to notice irregularities with repeated measurements.
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- 2021
9. Sports participation and muscle mass affect sex-related differences in bone mineral density between male and female adolescents: A longitudinal study
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Han C. G. Kemper, Yuri da Silva Ventura Faustino-da-Silva, Ricardo Ribeiro Agostinete, André O. Werneck, Rômulo Araújo Fernandes, Santiago Maillane-Vanegas, Rafael Luiz-de-Marco, Isabella Neto Exupério, APH - Health Behaviors & Chronic Diseases, Universidade Estadual Paulista (Unesp), and Amsterdam Public Health Research Institute
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Male ,Longitudinal study ,Time Factors ,Adolescent ,lcsh:Medicine ,Affect (psychology) ,Muscle mass ,Bone and Bones ,Body Mass Index ,03 medical and health sciences ,Biological maturation ,Absorptiometry, Photon ,Sex Factors ,0302 clinical medicine ,Bone Density ,Reference Values ,Humans ,Medicine ,Longitudinal Studies ,030212 general & internal medicine ,Child ,Muscle, Skeletal ,Bone mineral ,business.industry ,lcsh:R ,Puberty ,Sex related ,General Medicine ,Adolescent Development ,Public university ,Female ,Growth and Development ,business ,Body mass index ,030217 neurology & neurosurgery ,Sports ,Demography - Abstract
Made available in DSpace on 2019-10-06T15:44:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2019-10-09T18:34:54Z : No. of bitstreams: 1 S1516-31802019000100075.pdf: 143963 bytes, checksum: 1f451fccbd1c7cb92695b3359225949f (MD5) BACKGROUND: Sports participation plays an important role in bone gain during childhood and adolescence. The aim here was to identify sex-related determinants of bone mineral density (BMD) differences between male and female adolescents, with emphasis on the role of sports participation. DESIGN AND SETTING: Longitudinal study conducted in a public university in Presidente Prudente, Brazil. METHODS: The sample comprised 48 adolescents aged 11-17 years, of both sexes, who were matched according to sex, age and sports participation. BMD was the main outcome, while muscle mass, sports participation, calendar age and biological maturation were treated as covariates. Participants were followed up after nine months. RESULTS: At baseline, BMD values were similar between the sexes. However, adjustment for covariates showed that BMD was higher among girls at all sites, with a contribution from lean soft tissue (LST) in the model (partial eta-squared, ES-r = 0.619 in upper limbs; 0.643 in lower limbs; 0.699 in spine and 0.599 in whole body). Sports participation only explained the upper-limb variance (ES-r = 0.99). At the follow-up, the results resembled the baseline except in the lower limbs (P = 0.109), in which BMD was similar between the groups. BMD gain over time was similar between girls and boys in all segments, and baseline LST affected upper-limb and whole-body BMD accrual (ES-r = 0.396 and 0.107, respectively). CONCLUSION: Whole-body and specific-site BMD differed between baseline and follow-up. However, BMD accrual was similar between the sexes, given that muscle mass constituted the most relevant determinant of the difference between them. Department of Physical Education Universidade Estadual Paulista (UNESP) Department of Physical Therapy UNESP Amsterdam UMC Amsterdam Public Health Research Institute Laboratory of InVestigation in Exercise(LIVE) Department of Physical Education Universidade Estadual Paulista (UNESP) Department of Physical Education Universidade Estadual Paulista (UNESP) Department of Physical Therapy UNESP Laboratory of InVestigation in Exercise(LIVE) Department of Physical Education Universidade Estadual Paulista (UNESP)
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- 2019
10. The Relationship between Binge Drinking and Metabolic Syndrome Components amongst Young Adults Aged 21 to 31 Years: Ellisras Longitudinal Study
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Geofrey Musinguzi, Kotsedi D Monyeki, Shisana M.A. Baloyi, Ramakgahlela Betty Sebati, Tebogo Maria Mothiba, Hlengani James Siweya, Mbelegem Rosina Nkwana, Andre Pascal Kengne, Moloko Matshipi, Han C. G. Kemper, Eliot Sibuyi, Suzan Mafoloa Monyeki, R.N. Malema, Mohlago Ablonia Seloka, Tumiso Malatji, Lloyd Leach, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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Adult ,Male ,Longitudinal study ,Multivariate analysis ,Waist ,hypertension ,Alcohol Drinking ,Health, Toxicology and Mutagenesis ,Population ,Binge drinking ,Alcohol abuse ,lcsh:Medicine ,030204 cardiovascular system & hematology ,Overweight ,Article ,metabolic syndrome ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Prevalence ,Humans ,Medicine ,overweight ,Longitudinal Studies ,030212 general & internal medicine ,education ,Biology ,Aged ,education.field_of_study ,diabetes ,business.industry ,Cholesterol, HDL ,lcsh:R ,Public Health, Environmental and Occupational Health ,medicine.disease ,binge drinking ,Chemistry ,Cross-Sectional Studies ,young adult ,Female ,Human medicine ,medicine.symptom ,Metabolic syndrome ,business ,Demography - Abstract
Background: Evidence is lacking on the effects of binge alcohol consumption on metabolic syndrome in the rural South African population. The purpose of this study was to investigate the association between binge drinking and components of metabolic syndrome (MetS) amongst Ellisras rural young adults aged 21 to 31 years who are part of the Ellisras Longitudinal Study. Methods: Logistic regression analysis was applied to a total of 624 participants (306 males and 318 females) aged 21 to 31 years who took part in the Ellisras Longitudinal Study (ELS). The model was adjusted for covariates, including smoking, age, and gender. Binge alcohol consumption was assessed using a standardised questionnaire that was validated for the Ellisras rural community. A standardised method of determining the components MetS was used after fasting blood samples were collected from all the participants. Results: Binge drinking remained significantly associated with low levels of high-density lipoprotein cholesterol (HDL-C) (OR = 2.64, 95% CI = 1.23&ndash, 5.65), after being adjusted for smoking, age, and gender. Other MetS components were not predicted. Instead, gender remained significantly associated with all MetS components, except triglycerides, at multivariate analysis. Age retained significance at multivariate analysis with waist girth (OR = 2.13, 95% CI = 1.37&ndash, 3.34), triglycerides (OR = 2.30, 95% CI = 1.05&ndash, 5.02), and the MetS composite (OR = 1.65, 95% CI = 1.12&ndash, 2.41). Conclusion: Binge drinking was significantly associated with lower levels of HDL-C. Future studies should investigate the relationship between alcohol abuse and the components of incident MetS in this population.
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- 2020
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11. Change in the mindset of a paediatric exercise physiologist:A review of fifty years research
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Han C. G. Kemper
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Male ,medicine.medical_specialty ,Longitudinal study ,Adolescent ,Bone density ,Health, Toxicology and Mutagenesis ,physical activity ,lcsh:Medicine ,Review ,aerobic power ,Interval training ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,randomized control trials ,Heart rate ,Humans ,Medicine ,Aerobic exercise ,Longitudinal Studies ,adolescents ,030212 general & internal medicine ,Child ,Exercise ,Generalized estimating equation ,Physical Education and Training ,Schools ,business.industry ,lcsh:R ,Public Health, Environmental and Occupational Health ,bone density ,030229 sport sciences ,Test (assessment) ,Physical Fitness ,Physical therapy ,Female ,longitudinal designs ,business - Abstract
In this review, the career of a pediatric exercise physiologist (HCGK) is given over a period of almost 50 years. His research was concentrated on the relationship of physical activity (physical education, sport, and daily physical activity) with health and fitness in teenagers in secondary schools. (1) His first experiment was an exercise test on a bicycle ergometer to measure aerobic fitness by estimating physical work capacity at a heart rate of 170 beats/minute (PWC170). (2) Secondly, a randomized control trial (RCT) was performed with an intervention of more intensive physical education (PE) with circuit interval training during three lessons per week over a period of six weeks. (3) Thereafter, a second RCT was performed with an intervention of two extra PE lessons per week over a whole school year. The results of these two RCTs appeared to be small or nonsignificant, probably because the effects were confounded by differences in maturation and the habitual physical activity of these teenagers. (4) Therefore, the scope of the research was changed into the direction of a long-term longitudinal study (the Amsterdam Growth And Health Longitudinal Study). This study included male and female teenagers that were followed over many years to get insight into the individual changes in biological factors (growth, fitness, obesity, hypercholesterolemia, and hypertension) and lifestyle parameters such as nutrition, smoking, alcohol usage, and daily physical activity. With the help of new advanced statistical methods (generalized estimating equations, random coefficient analysis, and autoregression analysis) suitable for longitudinal data, research questions regarding repeated measurements, tracking, or stability were answered. New measurement techniques such as mineral bone density by means of dual-energy X-ray absorptiometry (DEXA) showed that bone can also be influenced by short bursts of mechanical load. This changed his mind: In children and adolescents, not only can daily aerobic exercise of at least 30 to 60 minutes duration increase the aerobic power of muscles, but very short highly intensive bursts of less than one minute per day can also increase the strength of their bones.
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- 2020
12. Sports participation improves metabolic profile in adolescents: ABCD growth study
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Han C. G. Kemper, Ítalo Ribeiro Lemes, Maurício Fregonesi Barbosa, Jacqueline Bexiga Urban, Rômulo Araújo Fernandes, Suziane Ungari Cayres-Santos, Public and occupational health, APH - Health Behaviors & Chronic Diseases, Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), and Amsterdam Public Health Research Institute
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Male ,medicine.medical_specialty ,Adolescent ,Physical fitness ,Blood sugar ,Blood lipids ,030209 endocrinology & metabolism ,Type 2 diabetes ,03 medical and health sciences ,0302 clinical medicine ,Insulin resistance ,Internal medicine ,Genetics ,Humans ,Medicine ,0601 history and archaeology ,Longitudinal Studies ,Child ,Ecology, Evolution, Behavior and Systematics ,060101 anthropology ,business.industry ,Cardiorespiratory fitness ,06 humanities and the arts ,medicine.disease ,Blood pressure ,Endocrinology ,Cardiorespiratory Fitness ,Anthropology ,Metabolome ,Female ,Anatomy ,business ,human activities ,Body mass index ,Brazil ,Sports - Abstract
Made available in DSpace on 2020-12-12T01:12:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01 To analyze the impact of participation in sports with different cardiorespiratory fitness (CRF) demands on changes in metabolic and cardiovascular markers in adolescents. Longitudinal study with 12 months of follow-up (Analysis of Behaviors of Children During Growth [ABCD Growth Study]). Overall, 184 adolescents (age 15.6 ± 2.1) were classified according to sports participation: non-sport (control), low CRF sports, and high CRF sports. Metabolic outcomes were total cholesterol (TC) and its fractions, triacylglycerol (TG), glucose, insulin levels, and the insulin resistance index. Cardiovascular outcomes were arterial thickness (carotid and femoral [ultrasound]), blood pressure, and resting heart rate. Adolescents engaged in sports classified as high CRF demand presented a significant increase in HDL-c (1.2 mg/dL [95%CI: −0.5 to 3.0]) when compared to the non-sport group (−2.4 mg/dL [95%CI: −4.4 to −0.5]). Regular engagement in high CRF sports was significantly related to changes in TC (β = −0.027 [95%CI: −0.048 to −0.005]), HDL-c (β = 0.009 [95%CI: 0.001 to 0.019]), LDL-c (β = −0.032 [95%CI: −0.049 to −0.016]), and glucose (β = −0.017 [95%CI: −0.025 to −0.008]), while engagement in low CRF sports was related to changes in TG (β = −0.065 [95%CI: −0.112 to −0.019]). No significant relationships for cardiovascular parameters were observed in the low CRF group, but one significant relationship was found between high CRF sports and changes in SBP (β = −0.063 [95%CI: −0.117 to −0.009]). In conclusion, engagement in sports seems to be beneficial for improvements in metabolic and cardiovascular parameters in adolescents, mainly sports with higher CRF demand. Laboratory of Investigation in Exercise - LIVE Department of Physical Education UNESP Post-Graduate Program in Physiotherapy UNESP Post-Graduate Program in Radiology Federal University of São Paulo UNIFESP Amsterdam UMC Amsterdam Public Health Research Institute Laboratory of Investigation in Exercise - LIVE Department of Physical Education UNESP Post-Graduate Program in Physiotherapy UNESP
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- 2019
13. A Brief History of Pediatric Exercise Physiology
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Han C. G. Kemper, Thomas W. Rowland, Neil Armstrong, Bareket Falk, and Panagiota Klentrou
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Gerontology ,Adolescent ,business.industry ,MEDLINE ,Historical Article ,030209 endocrinology & metabolism ,Physical Therapy, Sports Therapy and Rehabilitation ,030229 sport sciences ,History, 20th Century ,History, 21st Century ,Pediatrics ,03 medical and health sciences ,0302 clinical medicine ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Exercise physiology ,Child ,business ,Exercise - Published
- 2018
14. Sport-based physical activity recommendations and modifications in C-reactive protein and arterial thickness
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Han C. G. Kemper, Maurício Fregonesi Barbosa, Rômulo Araújo Fernandes, Suziane Ungari Cayres, Jamile Sanches Codogno, Fábio Santos Lira, Public and occupational health, APH - Health Behaviors & Chronic Diseases, Universidade Estadual Paulista (Unesp), VU University Medical Center, and Universidade de São Paulo (USP)
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Male ,Arterial thickness ,medicine.medical_specialty ,Adolescent ,Ultrasound scan ,Physical activity ,030204 cardiovascular system & hematology ,Carotid Intima-Media Thickness ,03 medical and health sciences ,Biological maturation ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Humans ,Medicine ,Longitudinal Studies ,Child ,Exercise ,Life Style ,Inflammation ,biology ,business.industry ,C-reactive protein ,Body fatness ,Arteries ,030229 sport sciences ,Trunk ,Cardiovascular health ,C-Reactive Protein ,Blood pressure ,Adipose Tissue ,Pediatrics, Perinatology and Child Health ,biology.protein ,Female ,business ,Densitometry ,human activities ,Biomarkers ,Follow-Up Studies ,Sports - Abstract
We analyzed the effects of 1 year of engagement in ≥ 300 min/week of organized sports on inflammatory levels and vascular structure in adolescents. The sample was composed of 89 adolescents (11.6 ± 0.7 years old [43 boys and 46 girls]), stratified according to engagement in ≥ 300 min/week of sport practice during at least 12 months of follow-up (n = 15, sport practice; n = 74, non-sport practice). Arterial thickness (carotid and femoral) was assessed by ultrasound scan, while high sensitive C-reactive protein levels were used to assess inflammatory status. Trunk fatness (densitometry scanner), biological maturation (age at peak height velocity), blood pressure, and skipping breakfast were treated as covariates. Independently of body fatness and biological maturation, the group engaged in sports presented a higher reduction in C-reactive protein (mean difference -1.559 mg/L [95%CI -2.539 to -0.579]) than the non-sport group (mean difference -0.414 mg/L [95%CI -0.846 to 0.017]) (p = 0.040). There was a significant relationship between changes in C-reactive protein and changes in femoral intima-media thickness in the non-sport group (r = 0.311 [95%CI 0.026 to 0.549]).Inflammation decreased in adolescents engaged in organized sports, independently of trunk fatness and biological maturation. Moreover, inflammation was related to arterial thickening only in adolescents not engaged in sports. What is Known: • Intima media thickness is a relevant marker of cardiovascular disease in pediatric groups, being affected by obesity and inflammation. • The importance of monitoring inflammatory markers from childhood is enhanced by the fact that alterations in these inflammatory markers in early life predict inflammation and alterations in carotid IMT in adulthood. What is New: • Anti-inflammatory properties related to physical exercise performed at moderate intensity, on inflammation and alterations in IMT are not clear in pediatric groups. • Due to the importance that sport participation has assumed as a promoter of improvements in health and quality of life, it is necessary to understand its potential benefits for cardiovascular health during human growth.
- Published
- 2018
15. Impact sports and bone fractures among adolescents
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Han C. G. Kemper, Igor Hideki Ito, Rafael Luiz-de-Marco, Bruna Camilo Turi-Lynch, Ricardo Ribeiro Agostinete, Rômulo Araújo Fernandes, Mario A. Rodrigues-Junior, Kyle R. Lynch, Universidade Estadual Paulista (Unesp), VU University Medical Center, APH - Health Behaviors & Chronic Diseases, and Public and occupational health
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Male ,medicine.medical_specialty ,bones ,Adolescent ,Fractures, Stress ,Stress fractures ,Poison control ,030209 endocrinology & metabolism ,Physical Therapy, Sports Therapy and Rehabilitation ,Lower risk ,03 medical and health sciences ,0302 clinical medicine ,Bone Density ,Risk Factors ,Injury prevention ,Prevalence ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Longitudinal Studies ,Child ,Bone mineral ,business.industry ,motor activity ,Hazard ratio ,Confounding ,Age Factors ,Resistance Training ,030229 sport sciences ,medicine.disease ,Body Height ,Confidence interval ,Athletic Injuries ,Physical therapy ,Female ,business ,human activities ,Brazil ,Sports - Abstract
Made available in DSpace on 2018-12-11T16:45:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-12-17 The objective of the present study was to investigate the effects of different sports on stress fractures among adolescents during a 9-month follow-up period. The sample was composed of 184 adolescents divided into three groups (impact sports [n = 102]; swimming [n = 35]; non-sports [n = 47]). The occurrence of stress fracture was reported by participants and coaches. As potential confounders we considered age, sex, resistance training, body composition variables and age at peak of height velocity. There were 13 adolescents who reported fractures during the 9-month period. Bone mineral density values were higher in adolescents engaged in impact sports (P-value = 0.002). Independently of confounders, the risk of stress fracture was lower in adolescents engaged in impact sports than in non-active adolescents (hazard ratio [HR] = 0.23 [95% confidence interval (CI) = 0.05 to 0.98]), while swimming practice was not associated to lower risk of fracture (HR = 0.49 [95% CI = 0.09 to 2.55]). In conclusion, the findings from this study indicate the importance of sports participation among adolescents in the reduction of stress fracture risk, especially with impact sports. More importantly, these results could be relevant for recognising adolescents in danger of not reaching their potential for peak bone mass and later an increased risk of fractures. Laboratory of InVestigation in Exercise (LIVE) Department of Physical Education Sao Paulo State University (UNESP) Post-Graduation Program in Kinesiology Institute of Biosciences Sao Paulo State University (UNESP) Department of Occupational Health EMGO+ Institute for Health and Care Research VU University Medical Center Post-Graduation Program in Physical Therapy Department of Physical Therapy Sao Paulo State University (UNESP) Laboratory of InVestigation in Exercise (LIVE) Department of Physical Education Sao Paulo State University (UNESP) Post-Graduation Program in Kinesiology Institute of Biosciences Sao Paulo State University (UNESP) Post-Graduation Program in Physical Therapy Department of Physical Therapy Sao Paulo State University (UNESP)
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- 2017
16. The use of alcohol and knowledge of cardiovascular diseases among ellisras rural children aged 14–22 years: Ellisras longitudinal study
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Kotsedi D Monyeki, Han C. G. Kemper, Hlengani James Siweya, Norman Thinavhudzulo Mafumo, Moloko Matshipi, Suzan Mafoloa Monyeki, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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Adult ,Male ,Rural Population ,Health Knowledge, Attitudes, Practice ,Longitudinal study ,Adolescent ,Alcohol Drinking ,Health, Toxicology and Mutagenesis ,lcsh:Medicine ,Alcohol abuse ,Binge drinking ,Disease ,030204 cardiovascular system & hematology ,Logistic regression ,Article ,South Africa ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,children ,Risk Factors ,Surveys and Questionnaires ,Prevalence ,medicine ,Humans ,Longitudinal Studies ,030212 general & internal medicine ,Young adult ,business.industry ,lcsh:R ,Public Health, Environmental and Occupational Health ,Odds ratio ,alcohol use ,medicine.disease ,Ellisras Longitudinal Study ,Confidence interval ,cardiovascular diseases ,Female ,business ,Demography - Abstract
The harm alcohol abuse does to physical and mental health is well established. The perception of cardiovascular disease risk factors and alcohol use requires attention. This study aims to investigate the association between alcohol usage and knowledge of cardiovascular diseases (CVDs) risk factors among Ellisras rural adolescents and young adults aged 14&ndash, 22 years. In this cross-sectional study a total of 1409 subjects (736 boys and 673 girls), aged 14&ndash, 22 years, from the Ellisras Longitudinal Study, South Africa completed a validated alcohol use and CVDs knowledge questionnaire. Logistic regression was used to estimate the association. The prevalence of alcohol intake increased with increasing age among girls (13.6% to 17.7%) and boys (10.3% to 16.9%) and reached a statistically significant difference (p <, 0.024) at an older age category (20&ndash, 22 years). There was a significant (p <, 0.05) association between alcohol use and a positive response on the following knowledge statements: The fact that cardiovascular disease attacked all age groups and mostly elderly people (the odds ratio (OR) ranged between 0.5 95% confidence interval (CI) = 0.33&ndash, 0.74 and OR = 2.86 95% CI = 1.27&ndash, 6.42). Medical doctors can help to diagnose somebody with cardiovascular diseases (OR ranged between 2.25 95% CI = 1.49&ndash, 3.39 and OR = 0.75 95% CI = 0.65&ndash, 0.87). The condition for cardiovascular diseases developed over a long period (OR ranged between 1.75 95% CI = 1.16&ndash, 2.64 and OR = 2.23 95% CI = 1.34&ndash, 4.07). The prevalence of alcohol use in Ellisras rural adolescents and young adults begins between the ages of 14 and 16 years and increases with age. Binge drinking was more evident on Fridays and Saturdays among the Ellisras rural adolescents and young adults with girls showing a significantly higher prevalence of binge drinking compared to boys on a Friday.
- Published
- 2019
17. Impact of artistic gymnastics on bone formation marker, density and geometry in female adolescents: ABCD-growth study
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Isabella Neto Exupério, Rafael Luiz-de-Marco, Han C. G. Kemper, Rômulo Araújo Fernandes, Eduardo Duarte de Lima Mesquita, André O. Werneck, Ricardo Ribeiro Agostinete, Santiago Maillane-Vanegas, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
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0301 basic medicine ,musculoskeletal diseases ,Longitudinal study ,medicine.medical_specialty ,Adolescent ,Gymnastics ,Bone density ,Endocrinology, Diabetes and Metabolism ,education ,030209 endocrinology & metabolism ,Growth ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Bone and bones ,medicine ,Femur ,Bone formation ,Bone mineral ,Orthodontics ,Trochanter ,biology ,business.industry ,Orthopedic surgery ,Osteocalcin ,biology.protein ,Original Article ,030101 anatomy & morphology ,business ,human activities ,Sports - Abstract
Background: To compare bone density accrual and markers of bone geometry and formation between female adolescents engaged and not engaged in artistic gymnastics (AGs). Methods: This was a 12-month longitudinal study involving 20 female adolescents, including 10 controls and 10 gymnasts (AGs) aged 11 to 16 years. At baseline, the gymnasts had a minimum of 12 months of practice, and the controls reported no participation in any organized sport. Bone mineral density (BMD) was measured in the lower limbs, upper limbs, spine, and whole body. In addition, BMD and geometrical properties of the femur were assessed. As a bone formation marker, osteocalcin level was measured. Results: Femoral aspects were increased in the gymnasts by 19% (P= 0.009), 14% (P= 0.047), and 10% (P= 0.046) in the Ward’s triangle, trochanter, and the overall bone, respectively, than in the control girls. Geometrical parameters, bone accrual, and osteocalcin levels were similar in both groups. The weekly training load explained 30.8% of all bone gains on the lower limbs and affected the density on parts of the femur. Conclusions: The gymnasts, after a 12-month follow-up, demonstrated a higher BMD in the Ward’s triangle and whole femur than the controls, as well as an improvement in femur density. These changes were mainly due to the weekly training load. Lastly, the gymnasts had significant bone accrual (after 12 months) in the upper limbs, lower limbs, and whole body.
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- 2019
18. The Canadian Assessment of Physical Literacy: Development of a Model of Children’s Capacity for a Healthy, Active Lifestyle Through a Delphi Process
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Roy J. Shephard, Lars Bo Andersen, Han C. G. Kemper, Weimo Zhu, Mark S. Tremblay, Tim Olds, Beth Hands, John Hay, Guy Faulkner, Thomas L. McKenzie, Avery D. Faigenbaum, Meghann Lloyd, Jennifer M. Sacheck, Duane Knudson, Peter T. Katzmarzyk, Elena A. Boiarskaia, Charles Boyer, John Cairney, Patricia E. Longmuir, Joel D. Barnes, Claire E. Francis, Ian Janssen, EMGO - Quality of care, Public and occupational health, Francis, Claire E, Longmuir, Patricia E, Boyer, Charles, Andersen, Lars Bo, Olds, Tim S, and Tremblay, Mark S
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Male ,Program evaluation ,Canada ,Community-Based Participatory Research ,medicine.medical_specialty ,Consensus ,Delphi Technique ,Health Status ,Applied psychology ,Delphi method ,Health Promotion ,Health Promotion/methods ,Likert scale ,03 medical and health sciences ,0302 clinical medicine ,Community-based research ,Physical literacy ,medicine ,Humans ,Orthopedics and Sports Medicine ,030212 general & internal medicine ,Evaluation ,Child ,Life Style ,Exercise ,Motor skill ,computer.programming_language ,Protocol (science) ,Schools ,Health Literacy/statistics & numerical data ,Physical activity assessment ,030229 sport sciences ,Health Literacy ,Socioeconomic Factors ,Motor Skills ,Physical therapy ,Health promotion ,Female ,Health determinants ,Psychology ,Inclusion (education) ,computer ,Delphi ,Program Evaluation - Abstract
Background:The Canadian Assessment of Physical Literacy (CAPL) was conceptualized as a tool to monitor children’s physical literacy. The original model (fitness, activity behavior, knowledge, motor skill) required revision and relative weights for calculating/interpreting scores were required.Methods:Nineteen childhood physical activity/fitness experts completed a 3-round Delphi process. Round 1 was open-ended questions. Subsequent rounds rated statements using a 5-point Likert scale. Recommendations were sought regarding protocol inclusion, relative importance within composite scores and score interpretation.Results:Delphi participant consensus was achieved for 64% (47/73) of statement topics, including a revised conceptual model, specific assessment protocols, the importance of longitudinal tracking, and the relative importance of individual protocols and composite scores. Divergent opinions remained regarding the inclusion of sleep time, assessment/scoring of the obstacle course assessment of motor skill, and the need for an overall physical literacy classification.Conclusions:The revised CAPL model (overlapping domains of physical competence, motivation, and knowledge, encompassed by daily behavior) is appropriate for monitoring the physical literacy of children aged 8 to 12 years. Objectively measured domains (daily behavior, physical competence) have higher relative importance. The interpretation of CAPL results should be reevaluated as more data become available.
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- 2016
19. Self-Reported Physical Activity is Not a Valid Method for Measuring Physical Activity in 15-Year-Old South African Boys and Girls
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Han C. G. Kemper, Makama Andries Monyeki, Jos W. R. Twisk, and Sarah J. Moss
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Total physical activity ,Longitudinal study ,medicine.medical_specialty ,ActiHeart® ,Physical activity ,physical activity ,Article ,Objective assessment ,03 medical and health sciences ,0302 clinical medicine ,Heart rate ,medicine ,physical activity methods ,030212 general & internal medicine ,adolescents ,business.industry ,lcsh:RJ1-570 ,Kinanthropometry ,lcsh:Pediatrics ,030229 sport sciences ,Energy expenditure ,Pediatrics, Perinatology and Child Health ,Cohort ,Physical therapy ,physical activity and health longitudinal study ,business - Abstract
Physical activity plays an important role in the prevention of chronic lifestyle-related diseases. The development of valid instruments for the assessment of physical activity remains a challenge in field studies. The purpose of the present study was therefore to determine the level of agreement between physical activity objectively measured by the ActiHeart®, (Cambridge Neurotechnology Ltd, Cambridge, UK) device and subjectively reported physical activity by means of the International Physical Activity Questionnaire Short Form (IPAQ-SF) among adolescents attending schools in the Tlokwe Local Municipality, South Africa. A cross-sectional study design was used with a total of 63 boys and 45 girls aged 15 years who took part in the Physical Activity and Health Longitudinal Study (PHALS). Stature and weight were measured according to standard International Society for the Advancement of Kinanthropometry (ISAK) protocols. Objective physical activity (PA) was measured by a combined heart rate and accelerometer device (ActiHeart®, ) for seven consecutive days. Time spent in moderate-to-vigorous intensity physical activity (MVPA) was assessed. Subjective physical activity was assessed with the self-reported IPAQ-SF. Objective PA indicated that 93% of the participants were inactive and only 6% were highly active. The IPAQ-SF showed that 24% were inactive, with 57% active. A non-significant correlation (r = 0.11, p = 0.29) between the ActiHeart®, measure of activity energy expenditure (AEE) and total physical activity (IPAQ-SF) was observed. The Bland&ndash, Altman plot showed no agreement between the two measurement instruments and also a variation in the level of equivalence. When Cohen&rsquo, s kappa (&kappa, ) was run to determine the agreement between the two measurement instruments for estimated physical activity, a poor agreement (&kappa, = 0.011, p <, 0.005) between the two was found. The poor level of agreement between the objective measure of physical activity (ActiHeart®, ) and the IPAQ-SF questionnaire should be interpreted cautiously. Future physical activity research using a combination of subjective and objective assessment methods in a large-scale cohort in adolescents is recommended.
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- 2018
20. Het belang van sport en bewegen voor het handhaven van een gezond lichaamsgewicht
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Han C. G. Kemper
- Abstract
Het handhaven van een constant lichaamsgewicht is het resultaat van een balans in de energiewisseling. Veel energie en relatief veel vet wordt gebruikt tijdens matig intensieve lichamelijke activiteiten die met grote spiergroepen worden uitgevoerd en lang kunnen worden volgehouden. Personen met overgewicht kunnen het best afvallen door een combinatie van een energiebeperkt dieet en een verhoging van een zelfgekozen lichamelijk activiteitenpatroon. De soort inspanning die vooral dient te worden geadviseerd om het energiegebruik te vergroten, is inspanning die grote spiergroepen betreft. Door middel van matig intensieve activiteiten, zoals wandelen, hardlopen, fietsen en zwemmen, is het mogelijk het energiegebruik aanzienlijk te vergroten, zonder dat snel een gevoel van vermoeidheid optreedt.
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- 2018
21. Relationship between carotid intima-media thickness, physical activity, sleep quality, metabolic/inflamatory profile, body fatness, smoking and alcohol consumption in young adults
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Bruna Camilo Turi-Lynch, Han C. G. Kemper, Aristides M. Machado-Rodrigues, Jamile Sanches Codogno, Santiago Maillane-Vanegas, Rômulo Araújo Fernandes, Fábio Santos Lira, Manoel Carlos Spiguel Lima, Universidade Estadual Paulista (Unesp), Universidade de Coimbra, and University Medical Center
- Subjects
medicine.medical_specialty ,Longitudinal study ,Health (social science) ,030204 cardiovascular system & hematology ,03 medical and health sciences ,lcsh:GV557-1198.995 ,0302 clinical medicine ,Internal medicine ,insulin resistance ,Insomnia ,Medicine ,cardiovascular diseases ,Young adult ,lcsh:Sports medicine ,lcsh:Sports ,Sleep disorder ,medicine.diagnostic_test ,business.industry ,Confounding ,General Medicine ,medicine.disease ,lipid profile ,Intima-media thickness ,Pedometer ,diabetes mellitus ,Cardiology ,cardiovascular system ,Aatherosclerosis ,medicine.symptom ,business ,Lipid profile ,lcsh:RC1200-1245 ,030217 neurology & neurosurgery - Abstract
Made available in DSpace on 2018-11-12T17:27:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2017. Added 1 bitstream(s) on 2018-11-12T17:35:33Z : No. of bitstreams: 1 S1980-65742017000300324.pdf: 378011 bytes, checksum: f7a04827db2c102e75c3f846b34ccfad (MD5) AbstractAIM The aim of this longitudinal study was to analyze the relationship between sleep disorder and intima-media thickness.METHOD Baseline measurements included carotid intima-media thickness, assessed by an ultrasound device; questionnaires about sleep and other behavioral variables; physical activity was measured by pedometer; body fatness was estimated by Dual-Energy X-ray Absorptiometry; fasting glucose, lipid profile and C-reactive protein were collected.RESULTS The occurrence rate of sleep-related disorders was 47% (95%CI= 37.2%-56.7%). Carotid intima-media thickness was related to symptoms of insomnia (r= 0.328 [0.141 to 0.493]) and, after adjustments for potential confounders, the relationship between carotid intima-media thickness and insomnia remained statistically significant (β= 0.121 [95%CI= 0.017; 0.225]).CONCLUSIONS In young adults, sleep disorder was significantly related to premature increase in carotid intima-media thickness. Universidade Estadual Paulista Universidade de Coimbra University Medical Center Universidade Estadual Paulista
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- 2017
22. Association between Blood Pressure and Birth Weight among Rural South African Children: Ellisras Longitudinal Study
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Han C. G. Kemper, Tshephang M.J. Mashiane, Kotsedi D Monyeki, Betty Sebati, M. D. Sekgala, Suzan Mafoloa Monyeki, Alfred Mogale, Leon Hay, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
- Subjects
Male ,Rural Population ,Longitudinal study ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Cross-sectional study ,Health, Toxicology and Mutagenesis ,Birth weight ,lcsh:Medicine ,Black People ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,Logistic regression ,Article ,03 medical and health sciences ,South Africa ,0302 clinical medicine ,underweight ,Thinness ,Weight for Age ,medicine ,Humans ,mid upper arm circumference ,Longitudinal Studies ,Child ,birth weight ,blood pressure ,rural South African children ,business.industry ,lcsh:R ,Public Health, Environmental and Occupational Health ,Anthropometry ,Low birth weight ,Cross-Sectional Studies ,Logistic Models ,Child, Preschool ,Hypertension ,Linear Models ,Female ,medicine.symptom ,Underweight ,business ,Demography - Abstract
The aim of this cross-sectional study was to investigate the association between birth weight, underweight, and blood pressure (BP) among Ellisras rural children aged between 5 and 15 years. Data were collected from 528 respondents who participated in the Ellisras Longitudinal Study (ELS) and had their birth weight recorded on their health clinic card. Standard procedure was used to measure the anthropometric measurements and BP. Linear regression was used to assess BP, underweight variables, and birth weight. Logistic regression was used to assess the association of hypertension risks, low birth weight, and underweight. The association between birth weight and BP was not statistically significant. There was a significant (p < 0.05) association between mean BP and the sum of four skinfolds (β = 0.26, 95% CI 0.15–0.23) even after adjusting for age (β = 0.18, 95% CI 0.01–0.22). Hypertension was significantly associated with weight for age z-scores (OR = 5.13, 95% CI 1.89–13.92) even after adjusting for age and sex (OR = 5.26, 95% CI 1.93–14.34). BP was significantly associated with the sum of four skinfolds, but not birth weight. Hypertension was significantly associated with underweight. Longitudinal studies should confirm whether the changes in body weight we found can influence the risk of cardiovascular diseases.
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- 2017
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23. Changes in body fatness affect cardiovascular outcomes more than changes in physical activity
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Han C. G. Kemper, Luiz Carlos Marques Vanderlei, Maurício Fregonesi Barbosa, Juliano Casonatto, Aristides M. Machado-Rodrigues, Suziane Ungari Cayres, Rômulo Araújo Fernandes, Universidade Estadual Paulista (Unesp), VU University Amsterdam, Northern Parana University (UNOPAR), University of Coimbra, Universidade de São Paulo (USP), Public and occupational health, and APH - Health Behaviors & Chronic Diseases
- Subjects
Male ,Multivariate statistics ,Adolescent ,Physical activity ,Adipose tissue ,Physiology ,physical activity ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,Affect (psychology) ,Carotid Intima-Media Thickness ,Risk Assessment ,Body fat percentage ,Body Mass Index ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Humans ,Medicine ,Child ,Exercise ,adiposity ,business.industry ,Incidence ,Incidence (epidemiology) ,dyslipidaemias ,General Medicine ,Confidence interval ,Adipose Tissue ,Cardiovascular Diseases ,Pediatrics, Perinatology and Child Health ,Female ,atherosclerosis ,Cardiology and Cardiovascular Medicine ,business ,Body mass index ,Brazil ,Densitometry - Abstract
Made available in DSpace on 2018-12-11T16:44:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-08-01 Objective The aim of this study was to analyse whether changes in physical activity and body fatness are related to modifications in cardiovascular risk factors among adolescents. Material and methods A sample of 89 healthy adolescents was recruited for this study. We assessed habitual physical activity, body fat percentage, arterial thickness, blood sample, and biological maturation. Multivariate models were used to analyse the relationships between independent and dependent variables. Results Physical activity (mean difference: 429.4 steps [95% confidence interval=-427 to 1286]) and body fatness (mean difference: -0.7% [95% confidence interval=-1.6-0.2]) remained stable during the study period. Independent of changes in physical activity, for each percentage increase in body fatness, femoral intima-media thickness increased by 0.007 mm (β=0.007 [95% confidence interval=0.001-0.013]). Longitudinal relationships were found for high-density lipoprotein-cholesterol (β=-0.477 mg/dl [95% confidence interval=-0.805 to -0.149]) and triacylglycerol (β=2.329 mg/dl [95% confidence interval=0.275-4.384]). Conclusion Changes in body fatness are more important than the amount of physical activity on cardiovascular and metabolic risks. Post-Graduate Program in Movement Sciences Sao Paulo State University (UNESP) Department of Occupational Health EMGO+ Institute for Health and Care Research VU University Medical Center VU University Amsterdam Department of Physical Therapy UNESP Department of Physical Education Northern Parana University (UNOPAR) Faculty of Sport Sciences and Physical Education University of Coimbra Post-Graduate Program in Radiology Federal University of São Paulo (UNIFESP) Laboratory of Investigation in Exercise - LIVE Department of Physical Education UNESP Department of Physical Education, Roberto Simonsen Street, 305 Post-Graduate Program in Movement Sciences Sao Paulo State University (UNESP) Department of Physical Therapy UNESP Laboratory of Investigation in Exercise - LIVE Department of Physical Education UNESP
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- 2017
24. Somatic maturation and the relationship between bone mineral variables and types of sports among adolescents: cross-sectional study
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Carlos Marcelo Pastre, Igor Hideki Ito, Rômulo Araújo Fernandes, Mario A. Rodrigues-Junior, Han C. G. Kemper, Ricardo Ribeiro Agostinete, and Rafael Luiz-de-Marco
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Male ,Time Factors ,Bone density ,Adolescent ,Cross-sectional study ,lcsh:Medicine ,Physiology ,030209 endocrinology & metabolism ,Context (language use) ,Basketball ,Bone and Bones ,03 medical and health sciences ,Absorptiometry, Photon ,0302 clinical medicine ,Bone Density ,Reference Values ,Soccer ,Humans ,Medicine ,Crescimento e desenvolvimento ,Child ,Densidade óssea ,Swimming ,Adolescente ,Bone mineral ,Bone Development ,Anthropometry ,business.industry ,lcsh:R ,Confounding ,Puberty ,030229 sport sciences ,General Medicine ,Adolescent Development ,Growth and development ,Skeleton (computer programming) ,Body Height ,Confidence interval ,Puberdade ,Cross-Sectional Studies ,Female ,Esportes ,business ,Sports - Abstract
CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers. RESUMO CONTEXTO E OBJETIVO: O pico de velocidade de crescimento (PVC) constitui importante evento maturacional durante a adolescência, afetando o tamanho do esqueleto. O objetivo do estudo foi comparar variáveis ósseas em adolescentes praticantes de diferentes modalidades esportivas, bem como identificar se diferenças nas variáveis ósseas atribuídas à prática esportiva são dependentes do estado da maturação somática. DESENHO E LOCAL: Estudo transversal, Universidade Estadual Paulista (UNESP). MÉTODOS: O estudo foi constituído por 93 adolescentes (12 a 16,5 anos), divididos em três grupos: grupo sem envolvimento esportivo (n = 42), futebol/basquete (n = 26) e natação (n = 25). A densidade e conteúdo mineral ósseo foram mensurados utilizando absortiometria de raio-x de dupla energia e a maturação somática foi estimada através do uso do PVC. Informações sobre volume de treinamento foram fornecidas pelos treinadores. RESULTADOS: Adolescentes com idade tardia no PVC apresentaram maiores valores de densidade mineral óssea em membros superiores (P = 0,018). Após ajustes por variáveis de confusão, como a maturação somática, os nadadores apresentaram menores valores de densidade mineral óssea em membros inferiores, coluna e corpo inteiro. Apenas a densidade mineral óssea de membros superiores foi similar entre os grupos. Existiu relação negativa entre conteúdo mineral ósseo de corpo inteiro e tempo de treino semanal (β: -1563.967; 95% intervalo de confiança, IC: -2916.484 a -211.450). CONCLUSÃO: As diferenças em variáveis ósseas atribuídas à prática esportiva ocorrem independentemente da maturação, enquanto elevada quantidade de treinamento em situações de hipogravidade parece estar relacionada com menor massa óssea em nadadores.
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- 2017
25. The Relationship between Physical Activity and Plasma Glucose Level amongst Ellisras Rural Young Adult Males and Females: Ellisras Longitudinal Study
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Han C. G. Kemper, Kotsedi D Monyeki, Moloko Matshipi, APH - Health Behaviors & Chronic Diseases, and Public and occupational health
- Subjects
Adult ,Blood Glucose ,Male ,Rural Population ,medicine.medical_specialty ,Longitudinal study ,Adolescent ,Health, Toxicology and Mutagenesis ,Population ,Physical activity ,physical activity ,lcsh:Medicine ,030209 endocrinology & metabolism ,plasma glucose levels ,prediabetes ,Article ,Plasma glucose level ,Prediabetic State ,Young Adult ,03 medical and health sciences ,South Africa ,0302 clinical medicine ,Surveys and Questionnaires ,Internal medicine ,Prevalence ,medicine ,Humans ,Longitudinal Studies ,030212 general & internal medicine ,Prediabetes ,Young adult ,education ,Exercise ,Life Style ,education.field_of_study ,business.industry ,rural young adults ,lcsh:R ,Public Health, Environmental and Occupational Health ,Type 2 Diabetes Mellitus ,medicine.disease ,Confidence interval ,Endocrinology ,Diabetes Mellitus, Type 2 ,Female ,business ,Demography - Abstract
Unhealthy lifestyle characteristics such as low physical activity (PA) and high plasma glucose levels (PGLs) may lead to the development of type 2 diabetes mellitus in adulthood. The aim of this study was to investigate (i) the level of physical activity; (ii) the prevalence of pre-diabetes and (iii) the relationship between PA and plasma glucose level in a rural Ellisras adult population aged 18 to 28 years. A total of 713 young adults (349 males and 364 females) who took part in the Ellisras Longitudinal Study participated in the study. Fasting plasma glucose levels were analysed using Accutrend glucose meters. Physical activity data was collected using a validated questionnaire. Linear regression was used to assess the relationship between PA and pre-diabetes. The prevalence of pre-diabetes was between 45.7% and 50.2% and that of physical inactivity was 67.3% and 71.0% for males and females, respectively. There was no significant (p > 0.05) relationship between PA and pre-diabetes (beta = 1.016; 95% Confidence Interval from 0.352 to 2.777). The health benefits of PA increased with the increasing frequency, duration and intensity of exercise. The prevalence of pre-diabetes was found to be very high in this population. Our results suggest that greater physical activity is associated with low plasma glucose levels.
- Published
- 2017
26. EARLY SPORT PRACTICE PROMOTES BETTER METABOLIC PROFILE INDEPENDENTLY OF CURRENT PHYSICAL ACTIVITY
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Han C. G. Kemper, Rômulo Araújo Fernandes, Aristides M. Machado-Rodrigues, Manoel Carlos Spiguel Lima, Suziane Ungari Cayres, and Manuel J. Coelho-e-Silva
- Subjects
medicine.medical_specialty ,Physical medicine and rehabilitation ,business.industry ,medicine ,Physical activity ,Physical therapy ,Current (fluid) ,business ,Metabolic profile - Published
- 2014
27. The Relationship between Body Fat Percentage and Some Anthropometric and Physical Fitness Characteristics in Pre- and Peripubertal Boys
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János Mészáros, Márta Szmodis, Han C. G. Kemper, Zsófia Mészáros, Anna Farkas, Iván Szmodis, Public and occupational health, and APH - Health Behaviors & Chronic Diseases
- Subjects
Male ,fat content ,Adolescent ,Health, Toxicology and Mutagenesis ,Physical fitness ,lcsh:Medicine ,Overweight ,Body fat percentage ,Article ,03 medical and health sciences ,0302 clinical medicine ,Dash ,Humans ,Medicine ,9–13-year-old boys ,Obesity ,030212 general & internal medicine ,Child ,Hungary ,business.industry ,Puberty ,lcsh:R ,Public Health, Environmental and Occupational Health ,030229 sport sciences ,Anthropometry ,medicine.disease ,humanities ,physique ,physical fitness tests ,Adipose Tissue ,Physical Fitness ,Body Constitution ,Analysis of variance ,medicine.symptom ,business ,Body mass index ,Demography - Abstract
The main aim of this study was to compare anthropometric and physical fitness indicators of boys of the same chronical age but with different fat percentages. Subjects were Hungarian boys aged 9&ndash, 13 years (N = 6919). Anthropometry was measured according the guidelines of the International Biological Program. Relative body fat was estimated by Drinkwater&ndash, Ross&rsquo, s method (1980), Conrad&rsquo, s growth type of physique was also estimated (1963). Physical fitness was tested with 30 m dash (s), standing long jump (cm), fistball throw (m), and 1200 m run (s). Subjects of each cohort were grouped into seven subgroups with fat percentage ranges of 4%. Differences between subgroups were tested by one-way ANOVA. In the case of a significant F-test, Tukey&rsquo, s post-hoc tests were used. The level of effective random error was set at 5% in all significance tests (p <, 0.05). Except for the three groups with low fat percentages, values of body weight, stature, body mass index, and plastic and metric indexes were significantly higher, results of 30 m, 1200 m running, and standing long jump were worse in all groups with higher fat percentages. An interesting finding of the current study is that body fat percentage also influenced the physical fitness of non-overweight and obese children as well when using merely the 4% ranges in grouping by fatness. The lower the fat the better the physical fitness was in this sample of pre- and peripubertal boys.
- Published
- 2019
28. 12. Maximal Aerobic Power
- Author
-
Han C. G. Kemper and R. Verschuur
- Subjects
medicine.medical_specialty ,Control theory ,business.industry ,Physical therapy ,medicine ,business ,Power (physics) - Published
- 2015
29. 17. The Pattern of Daily Physical Activity
- Author
-
Han C. G. Kemper and R. Verschuur
- Subjects
medicine.medical_specialty ,Physical medicine and rehabilitation ,business.industry ,Physical activity ,Medicine ,business - Published
- 2015
30. 16. Energy and Nutrient Intakes, Eating and Smoking Practices
- Author
-
Han C. G. Kemper and Bertheke Post
- Subjects
Nutrient ,Environmental health ,Energy (esotericism) ,Environmental science ,Food science - Published
- 2015
31. 3. Procedures and Subjects
- Author
-
Han C. G. Kemper, Lucienne Storm-van Essen, and P.G. Splinter
- Subjects
medicine.medical_specialty ,business.industry ,Physical therapy ,medicine ,business - Published
- 2015
32. 11. Motor Performance Fitness Tests
- Author
-
Han C. G. Kemper and R. Verschuur
- Subjects
Psychology - Published
- 2015
33. Investigation into the Effects of Two Extra Physical Education Lessons per Week during one School Year upon the Physical Development of 12- and 13-Year-Old Boys1
- Author
-
Jan Snel, Han C. G. Kemper, R. Verschuur, P.G. Splinter, Louis Tavecchio, and J.G.A. Ras
- Subjects
Physical development ,medicine.medical_specialty ,Physical therapy ,medicine ,Psychology ,Developmental psychology ,Physical education - Published
- 2015
34. 13. Other Functions
- Author
-
R. Verschuur and Han C. G. Kemper
- Published
- 2015
35. 18. How Healthy Are Dutch Teenagers?
- Author
-
Bertheke Post, Gré Ootjers, P.G. Splinter, R. Verschuur, Lucienne Storm-van Essen, Jan Willem Ritmeester, Han C. G. Kemper, Hans Dekker, and Jan Snel
- Published
- 2015
36. 6. Eating and Smoking Habits
- Author
-
Bertheke Post and Han C. G. Kemper
- Subjects
Smoking habit ,Environmental health - Published
- 2015
37. 1. Literature Survey of Longitudinal Growth Research
- Author
-
Han C. G. Kemper
- Subjects
Gerontology ,Longitudinal growth ,Psychology ,Literature survey - Published
- 2015
38. 7. Habitual Physical Activity
- Author
-
R. Verschuur and Han C. G. Kemper
- Subjects
business.industry ,Physical fitness ,Physical activity ,Medicine ,business ,Developmental psychology - Published
- 2015
39. 10. Body Build and Body Composition
- Author
-
R. Verschuur and Han C. G. Kemper
- Subjects
business.industry ,Medicine ,Food science ,business ,Composition (language) - Published
- 2015
40. 9. Biological Development
- Author
-
Han C. G. Kemper and R. Verschuur
- Subjects
Engineering ,Process management ,Development (topology) ,business.industry ,business - Published
- 2015
41. Physical inactivity of adults and 1-year health care expenditures in Brazil
- Author
-
Jamile Sanches Codogno, Han C. G. Kemper, Rômulo Araújo Fernandes, Diego Giulliano Destro Christofaro, Bruna Camilo Turi, Henrique Luiz Monteiro, Public and occupational health, and EMGO - Lifestyle, overweight and diabetes
- Subjects
Gerontology ,Male ,medicine.medical_specialty ,Health (social science) ,Health Behavior ,Physical activity ,Public healthcare ,Leisure Activities ,Sex Factors ,Health care ,medicine ,Humans ,Body Weights and Measures ,Motor activity ,Workplace ,Exercise ,Retrospective Studies ,business.industry ,Medical record ,Public health ,Public Health, Environmental and Occupational Health ,Age Factors ,Middle Aged ,medicine.disease ,Obesity ,Cross-Sectional Studies ,Socioeconomic Factors ,Cost control ,Female ,Health Expenditures ,Sedentary Behavior ,business ,Brazil - Abstract
To analyze the association between physical inactivity in different domains and direct public healthcare expenditures in adults and to identify whether the clustering of physical inactivity in different domains would contribute to increased public healthcare. The sample composed of 963 adults randomly selected in a middle-size Brazilian city. Annual healthcare expenditure was estimated including all items registered in the medical records in the last 12 months prior to the interview. Habitual physical activity was estimated using Baecke questionnaire, which considers three components of physical activity (work, sports and leisure-time activities). Higher healthcare expenditures of medicines were associated with lower physical activity at work (OR 1.58 [1.06–2.35]), sport (OR 1.57 [1.12–2.18]) and physical inactivity in three domains (OR 2.12 [1.18–3.78]). Expenditures related to medicine (r = 0.109 [95 % CI 0.046–0.171]) and overall expenditures (r = 0.092 [95 % CI 0.029–0.155]) were related to physical inactivity, independently of age, sex, smoking, blood pressure and obesity. Physically inactive subjects in different domains of physical activity have increased likelihood to be inserted at groups of higher healthcare expenditure.
- Published
- 2015
42. The Challenges of Underweight and Overweight in South African Children: Are We Winning or Losing the Battle? A Systematic Review
- Author
-
Ramoteme L. Mamabolo, Han C. G. Kemper, Adedapo Awotidebe, J. Hans De Ridder, Gert L. Strydom, Makama Andries Monyeki, Public and occupational health, EMGO - Lifestyle, overweight and diabetes, 25436988 - Awotidebe, Adedapo Wasiu, 10067310 - De Ridder, Johannes Hendrik, 20484291 - Mamabolo, Ramoteme Lesley, 12621595 - Monyeki, Makama Andries, and 10172521 - Strydom, Gert Lukas
- Subjects
Rural Population ,Pediatrics ,medicine.medical_specialty ,Time Factors ,Health, Toxicology and Mutagenesis ,growth ,lcsh:Medicine ,Review ,functional capacity ,Overweight ,Malnutrition in children ,South Africa ,Overnutrition ,overnutrition ,Thinness ,Environmental health ,medicine ,Humans ,African studies ,Child ,development ,South African children ,business.industry ,lcsh:R ,Public Health, Environmental and Occupational Health ,nutritional and metabolic diseases ,medicine.disease ,undernutrition ,Malnutrition ,rural ,Rural area ,Underweight ,medicine.symptom ,business ,Developed country ,urban - Abstract
Underweight and overweight are adverse effects of malnutrition and both are associated with negative health consequences in children and adolescents. In South Africa, the burden of economic and social disparity coexists with malnutrition in children. The purpose of this study was to review available South Africa studies regarding the comprehensive summary of prevalence of underweight and overweight and evaluates government policies in addressing undernutrition and overnutrition in South African children and adolescents. We searched subject-specific electronic bibliographic databases of observational studies published on malnutrition, undernutrition, overnutrition, underweight and overweight in South African boys and girls from birth to 20 years of age in studies published on or after 1990. A total of sixteen cross-sectional, three longitudinal studies and one report met the criteria for inclusion in this review. Descriptive data synthesis revealed the small number of longitudinal studies highlights the dearth of research in tracking undernutrition and overnutrition in South African children. In this review, 0.7%–66% of underweight was reported among children in rural areas compared to a 3.1%–32.4% of overweight in urban areas. All studies reported a higher rate of underweight in boys than girls who were significantly more likely to have higher body fat. The data indicated that both underweight and overweight were positively related with health-related physical activity and psychological health problems such as low activity, low fitness, low self-image and self-esteem. Numerous recommendations were made in the reviewed studies, however effective strategic programs in eradicating both underweight and overweight are minimal. It is evident from the reviewed studies that the burden of underweight and overweight are still a problem in South African children. The most highly affected by underweight are rural children, while children in urban areas in transition are faced with burden of overweight. There is little evidence to suggest that government strategic programs are effective in addressing underweight and overweight in South African children. Based on these findings, sustainable school-based feeding schemes and physical education programmes are needed for optimal benefits in children and adolescents.
- Published
- 2015
43. Health benefits of green spaces in the living environment: A systematic review of epidemiological studies
- Author
-
Han C. G. Kemper, M.M.H.E. van den Berg, M.N.M. van Poppel, Wanda Wendel-Vos, Jolanda Maas, W. van Mechelen, Public and occupational health, and EMGO - Lifestyle, overweight and diabetes
- Subjects
education.field_of_study ,medicine.medical_specialty ,Ecology ,media_common.quotation_subject ,Population ,Soil Science ,Forestry ,Evidence-based medicine ,Mental health ,Environmental health ,Epidemiology ,medicine ,Residence ,Quality (business) ,Association (psychology) ,education ,Psychology ,Socioeconomic status ,media_common - Abstract
Objectives The objective was to systematically review the literature examining the relationship between quantity and quality of green spaces in the living environment and three health outcomes: perceived general health, perceived mental health, and (all-cause) mortality. Methods An online search was followed by a selection process applying eligibility criteria. Three levels of evidence were defined based on the number and quality of the studies, and the consistency of the findings. Fourteen studies on perceived general health, 19 on mental health and seven on all-cause mortality were included in the review. Results The evidence synthesis showed strong evidence for significant positive associations between the quantity of green space (objectively measured around the residence) and perceived mental health and all-cause mortality, and moderate evidence for an association with perceived general health. There were insufficient studies on the quality of green spaces to conduct an evidence synthesis. A few studies provided indications that associations depend on subgroups such as gender, age groups and groups with different social economic status, but the findings were mixed. Conclusions Further research should focus on exploring relationships between more detailed characteristics of green space and more specific health outcomes in different population subgroups and in different countries. To strengthen the evidence-base, studies with more sophisticated designs, e.g. “natural experiments”, are needed.
- Published
- 2015
44. Pediatric Exercise Testing: Value and Implications of Peak Oxygen Uptake
- Author
-
Han C. G. Kemper, Frank J. Cerny, Robert G. McMurray, Robert I. Liem, Bareket Falk, and Paolo T. Pianosi
- Subjects
medicine.medical_specialty ,Heart disease ,Review ,Disease ,030204 cardiovascular system & hematology ,Cystic fibrosis ,03 medical and health sciences ,0302 clinical medicine ,cardiopulmonary exercise testing ,medicine ,Aerobic exercise ,Clinical significance ,Young adult ,aerobic fitness ,business.industry ,lcsh:RJ1-570 ,VO2 max ,lcsh:Pediatrics ,030229 sport sciences ,medicine.disease ,3. Good health ,Clinical trial ,Pediatrics, Perinatology and Child Health ,Physical therapy ,peak oxygen uptake ,business - Abstract
Peak oxygen uptake (peak V ˙ O 2 ) measured by clinical exercise testing is the benchmark for aerobic fitness. Aerobic fitness, estimated from maximal treadmill exercise, is a predictor of mortality in adults. Peak V ˙ O 2 was shown to predict longevity in patients aged 7–35 years with cystic fibrosis over 25 years ago. A surge of exercise studies in young adults with congenital heart disease over the past decade has revealed significant prognostic information. Three years ago, the first clinical trial in children with pulmonary arterial hypertension used peak V ˙ O 2 as an endpoint that likewise delivered clinically relevant data. Cardiopulmonary exercise testing provides clinicians with biomarkers and clinical outcomes, and researchers with novel insights into fundamental biological mechanisms reflecting an integrated physiological response hidden at rest. Momentum from these pioneering observations in multiple disease states should impel clinicians to employ similar methods in other patient populations; e.g., sickle cell disease. Advances in pediatric exercise science will elucidate new pathways that may identify novel biomarkers. Our initial aim of this essay is to highlight the clinical relevance of exercise testing to determine peak V ˙ O 2 , and thereby convince clinicians of its merit, stimulating future clinical investigators to broaden the application of exercise testing in pediatrics.
- Published
- 2017
45. PM300 Association Between Body Mass Index, Birth Weight and Blood Pressure Among Rural South African Children Over Time (1999 to 2003): Ellisras Longitudinal Study
- Author
-
Andre Pascal Kengne, Han C. G. Kemper, and Kotsedi D Monyeki
- Subjects
Community and Home Care ,Longitudinal study ,Blood pressure ,Epidemiology ,business.industry ,Birth weight ,Medicine ,Cardiology and Cardiovascular Medicine ,business ,Body mass index ,Demography - Published
- 2016
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