Search

We aimed to analyse the longitudinal association between physical fitness (PF) and body composition (BC) with a metabolic risk score (Met4) in children and adolescents and to elucidate whether the association between PF and Met4 differs when using relativized or absolute fitness variables. A total of 188 children (86 females) and 195 adolescents (97 females) were included. Cardiorespiratory fitness (CRF) was determined by the 20-m shuttle run test, and muscular fitness (MF) was determined by hand grip and standing long jump tests. Height and weight were measured, and the body mass index (Kg/ m2) was calculated. Triceps and subscapular skinfolds were assessed to compute body fat percentage. Met4 was computed from systolic blood pressure, triglycerides, high-density lipoprotein cholesterol, and glucose levels. Relative CRF was longitudinally and negatively associated with Met4 in female children (β = −0.031, p = 0.025), while absolute CRF was positively associated with Met4 in male children and adolescents (β = 0.000, p < 0.05). Relative upper and lower-body MF were longitudinally and negatively associated with Met4 in female adolescents (β = −1.347, β = −0.005, p < 0.05), while absolute lower-body MF was positively associated with Met4 in male children (β = 0.000, p = 0.019). BC was longitudinally and positively associated with Met4 in male children (β-ranging from 0.011 to 0.055, all p < 0.05) and male adolescents (β-ranging from 0.011 to 0.046, all p < 0.05). Conclusion: BC is more strongly associated with Met4 than PF in children and adolescents. An optimal body weight status should be considered the main objective of health-promoting programs at childhood and adolescence. Furthermore, the way of expressing the fitness variables determines the direction of the association with Met4., CRUE-CSIC, National Plan for Research, Development, and Innovation (R + D + i) from the Spanish Ministry of Science and Innovation DEP 201021662-C04-00 DEP 2010-21662-C04-01 DEP 2010-21662-C04-02 DEP 2010-21662-C04-03 DEP 2010-21662-C04-04

Purpose: We aimed to analyse the longitudinal association between physical fitness (PF) and body composition (BC) with metabolic syndrome score (MetS) in children and adolescents, and to elucidate whether the association between PF and MetS differs when using relativized or absolute fitness variables. Methods: A total of 188 children (86 females) and 195 adolescents (97 females) were included. Cardiorespiratory fitness (CRF) was determined by the 20-m shuttle run test and muscular fitness (MF) was determined by hand grip and standing long jump tests. Height and weight were measured, and body mass index (kg/m2) was calculated. Triceps and subscapular skinfolds were assessed to compute body fat percentage. MetS was computed from: waist circumference, systolic blood pressure, triglycerides, high-density lipoprotein cholesterol and glucose levels.Results: Relative CRF was longitudinally and negatively associated with MetS in female children (β=-0.031,p=0.025), while absolute CRF was positively associated with MetS in male children and adolescents (β=0.000,pConclusion: BC is more strongly associated with MetS than PF in children and adolescents. An optimal body weight status should be considered the main objective of health promoting programs at childhood and adolescence. Furthermore, the way of expressing the fitness variables determines the direction of the association with MetS.

We aimed to analyse the longitudinal association between physical fitness (PF) and body composition (BC) with a metabolic risk score (Met4) in children and adolescents and to elucidate whether the association between PF and Met4 differs when using relativized or absolute fitness variables. A total of 188 children (86 females) and 195 adolescents (97 females) were included. Cardiorespiratory fitness (CRF) was determined by the 20-m shuttle run test, and muscular fitness (MF) was determined by hand grip and standing long jump tests. Height and weight were measured, and the body mass index (Kg/m

Previous studies have observed a link between gender and well-being and health in young populations. The purpose of this research was twofold: (1) to analyse the cross-sectional relationship between gender status with well-being indicators and self-perceived health in adolescents at baseline and at 2-year follow-up and (2) to evaluate the prospective associations between gender at baseline and well-being indicators/self-perceived health assessed at 2-year follow-up. Well-being was measured using the KIDSCREEN-10 questionnaire (as a measure of health-related quality of life (HR-QoL)), the Children's Hope Scale and the Positive and Negative Affect Schedule. Health status of the adolescents was assessed using self-perceived health. Multilevel mixed-effects linear/logistic regression models were carried out to assess the associations between gender status and well-being and health of a sample of 1590 Spanish adolescents. Adolescent girls were shown to have lower HR-QoL scores and higher negative affect scores, and had a higher risk of reporting poor health than boys, in both cross-sectional and longitudinal analyses. Adolescent girls seem to be more vulnerable to poorer well-being and self-reported health than boys. When looking at hedonic and eudemonic well-being separately, longitudinal differential evolution of boys and girls seems to indicate greater deterioration of hedonic well-being among girls as compared to boys. Overall, gender may have a relevant impact on mental and physical health during adolescence. Ministerio de Ciencia e Innovación (DEP 2010-21662-C04-00) 7.521 Q1 JCR 2021 1.698 Q1 SJR 2021 No data IDR 2021 UEM

The aim of this study was to examine the bidirectional longitudinal associations of several markers of fatness and physical fitness in adolescents with Down syndrome.This study comprised a total of 111 adolescents (41 females), aged from 11 to 20 years with complete data at the baseline. We had a drop-out of10% from the baseline to the 2-year follow-up. The ALPHA health-related fitness test battery for youth was used.Our results show that all fatness variables at the baseline were associated with a 2-year change in cardiorespiratory fitness (β ranging from -0.32 to -0.38; all p .05), but not with muscular and motor fitness (p .05). However, no associations were found between physical fitness components as predictors and fatness indicators (p .05).Results suggest that reducing fatness during adolescence might represent a modifiable factor to improve cardiorespiratory fitness at the 2-year follow-up, but not vice versa since associations were not bidirectional.

This project was supported by Ministry of Economy, Industry and Competitiveness in the 2017 call for R&D Projects of the State Program for Research, Development and Innovation Oriented to the Challenges of the Company; National Plan for Scientific and Technical Research and of Innovation 2017-2020 (DEP2017-88043-R); and the Regional Government of Andalusia and University of Cadiz: Research and Knowledge Transfer Fund (PPIT-FPI19)., We comprehensively assessed the criterion-related validity of existing field-based fitness tests used to indicate adult health (19–64 years, with no known pathologies). The medical electronic databases MEDLINE (via PubMed) and Web of Science (all databases) were screened for studies published up to July 2020. Each original study’s methodological quality was classified as high, low and very low, according to the number of participants, the description of the study population, statistical analysis and systematic reviews which were appraised via the AMSTAR rating scale. Three evidence levels were constructed (strong, moderate and limited evidence) according to the number of studies and the consistency of the findings. We identified 101 original studies (50 of high quality) and five systematic reviews examining the criterion-related validity of field-based fitness tests in adults. Strong evidence indicated that the 20 m shuttle run, 1.5-mile, 12 min run/walk, YMCA step, 2 km walk and 6 min walk test are valid for estimating cardiorespiratory fitness; the handgrip strength test is valid for assessing hand maximal isometric strength; and the Biering–Sørensen test to evaluate the endurance strength of hip and back muscles; however, the sit-and reach test, and its different versions, and the toe-to-touch test are not valid for assessing hamstring and lower back flexibility. We found moderate evidence supporting that the 20 m square shuttle run test is a valid test for estimating cardiorespiratory fitness. Other field-based fitness tests presented limited evidence, mainly due to few studies. We developed an evidence-based proposal of the most valid field-based fitness tests in healthy adults aged 19–64 years old., Ministry of Economy, Industry and Competitiveness, National Plan for Scientific and Technical Research and of Innovation 2017-2020 DEP2017-88043-R, University of Cadiz: Research and Knowledge Transfer Fund PPIT-FPI19, Junta de Andalucia

Prior studies have detected a link between wellbeing and health in adult populations, however little is known of the relation in young people. The objective of this study is to analyze the relationship of subjective wellbeing (evaluative, hedonic and eudemonic) and self-perceived general health in a sample of Spanish adolescents. A cross-sectional analysis was carried out with a sample of 1407 adolescents aged 10–18 included in the third year of the UP&Down Study. Subjective wellbeing was assessed considering a three-dimensional model based on the following components: evaluative, hedonic and eudemonic wellbeing, using the Subjective Happiness Scale, the Positive and Negative Affect Schedule and the Children’s Hope Scale, respectively. Self-perceived health was employed to measure the health status of adolescents. Logistic regression models were constructed to evaluate relationships between wellbeing and health by sex and age. Increased levels of subjective wellbeing were associated with a lower risk of late adolescent girls and boys reporting poor health and early adolescent girls, with the exception of the evaluative wellbeing, only associated with self-perceived health in late adolescent boys. Subjective wellbeing seems to behave as a protective factor against reporting poor health in adolescent populations. Sin financiación 2.420 JCR (2020) Q2, 39/109 Social Sciences, Interdisciplinary 0.641 SJR (2020) Q1, 279/1316 Sociology and Political Science No data IDR 2020 UEM

Objective: The aim of this study is to compare the levels of physical activity and sedentary behaviours in children with obesity and normal weight through accelerometer measures, and analyze the family environment related to physical activity. Design: Case-control study. Location: A health center and colleges of the Community of Madrid. Participants: A total of 50 obese children between 8 and 12 years of age (P > 97) and their mothers were matched by age, sex and socioeconomic status of their parents (1: 1) with 50 children with normopeso (GN; P < 85). Main measurements: Physical activity levels were measured by accelerometer (ActiGraph GT3X), levels of physical activity of the primary caregiver were measured through physical activity questionnaire (IPAQ) and the environment in relation to the physical activity was measured by the Home Environment Scale (HES-S). Results: The group GO showed less vigorous physical activity than their peers in the GN group. Vigorous physical activity in the GO group was associated with modeling and parental policies regarding physical activity. A multiple regression analysis revealed that 21% of the variance of weight status of children was explained by sex, vigorous physical activity and maternal body mass index. Conclusions: The levels of vigorous physical activity and the family environment differ between children with obesity and normal weight. Therefore, it is important to continue working on the awareness of illness and the promotion of healthy habits from Primary Care and the school and institutional context., Objetivo: Comparar los niveles de actividad física y sedentarismo en niños con obesidad y normopeso, y analizar el nivel de actividad física del cuidador principal junto con el ambiente familiar.Diseño: Estudio caso-control.Emplazamiento: Un centro de salud y colegios de la Comunidad de Madrid.Participantes: Un total de 50 niños con obesidad entre 8 y 12 años (GO; P > 97) y sus madres,fueron emparejados por edad, sexo y estatus socioeconómico de sus padres (1:1) con 50 niños con normopeso (GN; P < 85).Mediciones principales: Los niveles de actividad física se midieron por acelerometría (Acti-Graph GT3X), la actividad física del cuidador principal con el cuestionario de actividad física(IPAQ) y el ambiente con el cuestionario de ambiente familiar (HES-S).Resultados: El grupo GO presentó menos actividad física de tipo vigoroso al compararse con el grupo GN. La actividad física vigorosa en el GO se asoció al modelado y las políticas parentales respecto a la actividad física. Un análisis de regresión múltiple muestra que el 21% de la varianza del estatus de peso de los niños se explicaba por la actividad física vigorosa y el índice de masa corporal materno.

El presente estudio tuvo como objetivo disenar y validar una escala para evaluar en profesores de Educacion Fisica el uso responsable de las pruebas de condicion fisica relacionadas con la salud. Metodo: participaron un total de 374 docentes de secundaria (266 hombres y 108 mujeres) de centros educativos pertenecientes a las ocho provincias andaluzas, con edades comprendidas entre 24 y 67 anos (41.92 ± 9.24 anos). Resultados: en primer lugar, se diseno un instrumento de 26 items, que obtuvo valores de correlacion item-total ≥ .35, exceptuando 5 items. Posteriormente, se evaluo la estructura interna de la escala, resultando esta pertinente. El analisis estadistico de los items y el posterior analisis factorial exploratorio dio como resultado cinco factores (orientacion del resultado, uso de estilos participativos, el enfoque educativo, rigor metodologico y refuerzo positivo), con correlaciones positivas y significativas, constatadas mediante analisis factorial confirmatorio, pruebas de invarianza factorial, asi como de fiabilidad y validez convergente y discriminante. Los resultados del analisis de propiedades psicometricas de la escala fueron adecuados y permitieron ofrecer un instrumento ad hoc de 15 items, con moderados valores de validez y fiabilidad, acreditando su utilidad para valorar en profesores de Educacion Fisica el uso responsable de las pruebas de condicion fisica en sus clases.===The aim of this study was to design and validate a scale that would allow the evaluation in Physical Education teachers the responsible use of physical fitness tests related to health. Method: The sample was composed of 374 secondary school teachers (266 men and 108 women), from educational centers belonging to the eight Andalusian provinces, aged between 24 and 67 years (41.92 ± 9.24). Results: Firstly, a 26-item instrument was designed, which obtained item-total correlation values of ≥ .35, except for 5 items. Then, the internal structure of the scale was evaluated and proved to be relevant. The statistical analysis of the items and the subsequent exploratory factor analysis resulted in five factors (orientation of the result, use of participatory styles, the educational approach, methodological rigor, and positive reinforcement), with positive and significant correlations, confirmed by confirmatory factor analysis, factor invariance tests, as well as reliability and convergent and discriminant validity and reliability. The results of the analysis of psychometric properties of the scale were moderate and allowed us to offer a valid and reliable 15-item an ad hoc instrument, with adequate values of validity and reliability, proving its usefulness the evaluation in Physical Education teachers the responsible use of physical fitness tests in their classes.

Self-rated health (SRH) is an independent determinant for all-cause mortality. We aimed to examine the independent and combined associations of components of physical fitness with SRH at baseline (cross-sectional) and two years later (longitudinal) in children and adolescents. Spanish youth (N = 1378) aged 8 to 17.9 years participated at baseline. The dropout rate at 2-year follow-up was 19.5% (n = 270). Participants were categorized as either children (8 to 11.9 years age) or adolescents (12 to 17.9 years age). The ALPHA health- related fitness test battery for youth was used to assess physical fitness, and SRH was measured by a single-item question. Cumulative link, ANOVA and ANCOVA models were fitted to analyze the data. Cardiorespiratory fitness, relative upper body isometric muscular strength, muscular strength score, and global physical fitness were positively associated with SRH in children (OR, 1.048, 95% CI, 1.020&ndash, 1.076, OR, 18.921, 95% CI, 3.47&ndash, 104.355, OR, 1.213, 95% CI, 1.117&ndash, 1.319, and OR, 1.170, 95% CI, 1.081&ndash, 1.266, respectively, all p &lt, 0.001) and adolescents (OR, 1.057, 95% CI, 1.037&ndash, OR, 5.707, 95% CI, 1.122&ndash, 29.205, OR, 1.169, 95% CI, 1.070&ndash, 1.278, and OR, 1.154 95% CI, 1.100&ndash, 1.210, respectively, 0.001), and motor fitness was positively associated with SRH only in adolescents at baseline (OR, 1.192, 95% CI, 1.066&ndash, 1.309, p &lt, 0.01). Cardiorespiratory fitness and global physical fitness were positively associated with SRH in children two years later (OR, 1.056, 95% CI, 1.023&ndash, 1.091, 0.001, and OR, 1.082, 95% CI, 1.031&ndash, 1.136, 0.01, respectively). Only cardiorespiratory fitness was independently associated with SRH in children and adolescents at baseline (OR, 1.059, 95% CI, 1.029&ndash, 1.090, and OR, 1.073, 95% CI, 1.050&ndash, 1.097, respectively, both p &lt, 0.001) and two years later (OR, 1.075, 95% CI, 1.040&ndash, 1.112, and OR, 1.043, 95% CI, 1.014&ndash, 1.074, 0.01, respectively). A high level of cardiorespiratory fitness at baseline or maintaining high levels of cardiorespiratory fitness from the baseline to 2-year follow-up were associated with a higher level of SRH at 2-year follow-up in children (p &lt, 0.01) and adolescents (p &lt, 0.05). These findings emphasize the importance of cardiorespiratory fitness as strong predictor of present and future SRH in youth. Intervention programs to enhance cardiorespiratory fitness level of the youth population are urgently needed for present and future youth&rsquo, s health.

The aims of this study were (i) to examine the sedentary time (ST) during different time periods [i.e., weekend, out-of-school weekdays hours, school hours, recess, physical education classes (PEC)] in children and adolescents; (ii) to identify 2-year longitudinal changes in the ST for these periods; and (iii) to examine if ST at baseline is associated with ST 2 years later. This was a 2-year follow-up study with 826 (51.9% boys) children and 678 (50.7% boys) adolescents. Accelerometers were used to assess ST. Students spent more than 60% of their weekend, out-of-school hours and school hours in ST. During these periods, girls and adolescents were more sedentary than boys and children, respectively (p 0.05). Over 2-year follow-up, ST increased during the weekend, out-of-school hours, school hours and recess in all subgroups studied (p 0.001). ST during PEC declined 2% per year in children (p 0.001) but it increased in adolescents (p 0.05). ST during the periods analysed at baseline was lowly associated with ST during these periods 2 years later (intraclass correlations from0.001 to 0.364). Interventions in these settings may be adequate if the intention is to avoid ST increase in students.

[Background]: The main objective of this study was to describe the inflammatory status of adolescents with Down syndrome (DS) and their relationship with adiposity., [Methods]: Ninety‐five adolescents with DS (44.2% girls) and a control group of 113 adolescents (47.8% girls), aged between 11 and 18 years old, from the UP & DOWN study were included in this substudy. Serum C‐reactive protein, C3 and C4 complement factors, total proteins, interleukin‐6, tumour necrosis factor‐α, insulin, cortisol, leptin, adiponectin, galactin‐3 and visfatin were analysed; homeostatic model assessment index was calculated. In order to evaluate adiposity, we measured the following body fat variables: weight, height, waist circumference and skinfold thicknesses. Birth weight was obtained by questionnaire. In addition, body mass index, waist‐to‐height ratio (WHtR) and body fat percentage (BF%) were calculated., [Results]: Down syndrome group showed higher levels of body mass index, WHtR, waist circumference, BF% and lower birth weight than controls (P < 0.001). In the general linear model in the total sample, WHtR was positively associated with C3 and C4 (P < 0.001) as well as with leptin levels (P = 0.015). BF% was positively associated with total proteins (P = 0.093) and leptin levels (P < 0.001). DS was positively associated with total proteins (P < 0.001), C3 (P = 0.047) and C4 (P = 0.019). Despite the higher levels of adiposity found in DS group, no direct association was found between BF% and leptin levels, comparing with the control group., [Conclusions]: These findings suggest that abdominal obesity should be controlled in adolescents because of its relationship with acute phase‐inflammatory biomarkers but especially in DS adolescents who may show a peculiar metabolic status according to their relationship between adiposity and inflammatory biomarkers., We appreciate the following financial support: DEP 2010‐21662‐C04‐00 grants from the National Plan for Research, Development and Innovation (R + D + i) MICINN.

This study investigated the associations between the characteristics of the nearby physical environment with the total and domain-specific leisure-time sedentary behaviour (SB) in young people. The study included 1578 youth (9-18 years) from the UPDOWN study. Total leisure-time SB was objectively-assessed by accelerometers. Participants self-reported the time spent during leisure-time in different domains of SB (i.e. screen-based, educational-based, social-based, and other-based SB). Information regarding the basic characteristics of the house, the perceived neighbourhood environment, the amount of physical activity facilities, equipment and materials attainable at home, and the media equipment available at home and in the own bedroom was collected. Linear mixed models were performed, including school and city as random effects. The availability of yard was related to lower total SB and time spent surfing the Internet in boys, but not in girls. More favourable perceived neighbourhood environment was associated with lower total SB and time spent playing video games in girls, but not in boys. The amount of physical activity materials at home was negatively associated with screen-based SB, while the availability of a computer in the own bedroom was positively related to the time spent surfing the Internet in boys and girls. The number of televisions at home and having a computer in the own bedroom was associated with lower time in educational-based SB in boys and girls, respectively. Increasing the number of PA materials at home and decreasing the number of TVs at home and the availability of a computer in the bedroom could improve SB profiles of youth.

Aims: The purposes of this research were to study the convergent validity of the Mode and Frequency of Commuting To and From School Questionnaire using objectively assessed steps and time spent in different physical activity intensities and to compare the self-reported versus objective journey time in Spanish youths. Methods: Three hundred and eighty-nine Spanish youth aged 7–19 years were asked to complete the questionnaire and wore an accelerometer for five days. The objective commuting distance and time from home to school were estimated using Google MapsTM. Results: There were significant differences between passive and walking participants on step numbers, sedentary time and physical activity levels (except for vigorous physical activity in children). For children, a mean difference of −4.03 minutes between objective measured and self-reported journey time was found (95% limits of agreement were 13.55 and −21.60 minutes). For adolescents, the mean difference was −1.39 minutes (95% limits of agreement were 15.23 and −18.02 minutes). Conclusions: The findings indicated that the Mode of Commuting To and From School Questionnaire showed a convergent validity to assess this behaviour in Spanish youths. Self-reported journey time for walking is comparable to Google MapsTM in adolescents but not in children.

Background It is a priority to understand that physical activity behaviour over time is a priority in Down syndrome population in order to design and promote succesfull interventions to maintain or increase levels of physical activity. We aimed to study 1 and 2-year changes in objectively measured physical activity among a relatively large sample of adolescents with Down syndrome. Methods This study comprised a total of 99 adolescents with Down syndrome (38 girls) aged from 11 to 20 years old at baseline. Participants with valid accelerometer data at baseline and at least one of the follow-up visits were included in the analysis. Results Overall, levels of physical activity observed in adolescents with Down syndrome declined from baseline to follow-ups, but these changes were not significant (all P > 0.05). Moderate-to-moderately high tracking of physical activity was observed in adolescents with Down syndrome (all P

Objective: The aims of the present study were to analyze the associations between the socio-demographic and familiar circumstances with: (i) the total leisure-time sedentary behavior (SB) assessed by accelerometry, and (ii) the domain-specific leisure-time SB (i.e., screen-based, educational-based, social-based, and other-based SB), in a sample of Spanish youth. Method: The sample consisted of 1,543 youth (12.02 ± 2.51 years) included in the UPD however, socio-demographic and family circumstances differently associated with SB according to the domain-specific SB, the sex and the type of day. For example, participants with a father holding a high-skilled occupation spent lower time in screen-based SB during weekdays; and mother occupation status of high qualification was related to higher educational-based SB in boys. Having three or more sibling was associated with lower total SB in boys, while having an obese mother was related to higher screen-based SB on weekends both in boys and girls. Conclusions: Socio-demographic and familiar circumstances are associated with SB in young people, so future interventions should consider multiple and sex-specific factors for reduce SB of young people, focusing especially on youth with a low number of siblings and with parents holding low-skilled employments.

Objectives: Previous research has postulated immigrant status as a relevant factor influencing eating disorder (ED) risk in adolescents. The present study assesses differences by sex in ED risk between Spanish native and immigrant adolescent populations residing in Spain and analyzes longitudinal differences in ED risk between immigrant and native adolescents over 2-year follow-up. Method: The study sample was 981 adolescents aged 11-19 years at baseline. ED risk was evaluated using the Spanish version of the SCOFF Questionnaire. Logistic regression was used to value associations between country of origin and ED risk prevalence by sex, as well as changes in ED risk at 2-year follow-up. Results: Immigrant adolescent girls and boys presented greater ED risk than their Spanish counterparts. Prospective analyses showed that immigrant boys presented greater likelihood of acquiring ED risk over 2 years compared to Spanish adolescent boys. Conclusion: Immigrant adolescent populations, particularly boys, seem to be vulnerable to ED. (PsycINFO Database Record (c) 2019 APA, all rights reserved). Spanish Government (DEP 2010-21662-C04-00) Universidad Autonoma de Madrid 2.147 JCR (2019) Q1, 4/20 Ethnic Studies 1.343 SJR (2019) Q1, 40/315 Social Psychology No data IDR 2019 UEM

Individuals with intellectual disabilities (ID) are at high risk for high levels of sedentary behaviour. To inform the development of programmes to reduce sedentary behaviour, insight into the correlates is needed. Therefore, the aim of this study is to review the evidence on correlates of sedentary behaviour in adults with ID. We performed a systematic literature search in Ovid Medline, Ovid Embase, Web of Science and Google Scholar up to 19 January 2018, resulting in nine included studies that were published from 2011 to 2018. Correlates were categorized according to the ecological model. Studies predominantly focused on individual level correlates. Of those correlates studied in more than one study, having epilepsy was associated with less sedentary behaviour and inconsistent results were found for sex, genetic syndromes, weight status, physical health, mobility, level of ID, and mental health. Of the few interpersonal and environmental factors studied, only living arrangements were studied in more than one study, with inconsistent results. To date, we have limited and inconclusive evidence about correlates of sedentary behaviour in adults with ID. Only when future studies unravel correlates and determinants, across all domains of the ecological model, will the potential opportunities to improve health by reducing sedentary behaviour come within reach., Unrestricted funding to facilitate meetings of the European Network of Physical Activity Research in People with Intellectual Disabilities (ENPARID) was provided by Ramon Llull University and Obra Social La Caixa (reference 2016-URL-Trac-005) to MGB.

[Background]: We aimed to examine the independent and combined associations of cardiorespiratory fitness, muscular fitness, and motor ability with single and clustered inflammatory biomarkers in children and adolescents., [Methods]: This study included 503 children and adolescents. Cardiorespiratory fitness, upper- and lower-muscular fitness, and motor ability were assessed using field-based tests. Fasting blood samples were obtained to determine the levels of a set of inflammatory biomarkers. Global physical fitness and clustered inflammatory biomarker scores were computed. Associations between physical fitness and inflammatory biomarkers were analyzed through linear regression. Differences in inflammatory biomarker levels between physical fitness tertiles were tested., [Results]: Global physical fitness was inversely associated with single and clustered inflammatory biomarkers in children (p, [Conclusion]: Physical fitness was negatively associated with single and clustered inflammatory biomarkers, independently of body mass index. Increasing physical fitness levels in youth might contribute to reduce the cardiovascular risk., This work was supported by the National Plan for Research, Development, and Innovation (R + D + i) from the Spanish Ministry of Science and Innovation [DEP 2010-21662-C04-00 (DEP 2010-21662-C04-01: DEP 2010-21662-C04-02: DEP 2010-21662-C04-03: DEP 2010-21662-C04-04)]; and by the Spanish Ministry of Education [FPU15/05337].

Objectives To examine clustering of lifestyle behaviors in Spanish children and adolescents based on screen time, nonscreen sedentary time, moderate-to-vigorous physical activity, Mediterranean diet quality, and sleep time, and to analyze its association with health-related physical fitness. Study design The sample consisted of 1197 children and adolescents (597 boys), aged 8-18 years, included in the baseline cohort of the UP&DOWN study. Moderate-to-vigorous physical activity was assessed by accelerometry. Screen time, nonscreen sedentary time, Mediterranean diet quality, and sleep time were self-reported by participants. Health-related physical fitness was measured following the Assessing Levels of Physical Activity battery for youth. A 2-stage cluster analysis was performed based on the 5 lifestyle behaviors. Associations of clusters with fatness and physical fitness were analyzed by 1-way ANCOVA. Results Five lifestyle clusters were identified: (1) active (n = 171), (2) sedentary nonscreen sedentary time-high diet quality (n = 250), (3) inactive-high sleep time (n = 249 [20.8%]), (4) sedentary nonscreen sedentary time-low diet quality (n = 273), and (5) sedentary screen time-low sleep time (n = 254). Cluster 1 was the healthiest profile in relation to health-related physical fitness in both boys and girls. In boys, cluster 3 had the worst fatness and fitness levels, whereas in girls the worst scores were found in clusters 4 and 5. Conclusions Clustering of different lifestyle behaviors was identified and differences in health-related physical fitness were found among clusters, which suggests that special attention should be given to sedentary behaviors in girls and physical activity in boys when developing childhood health prevention strategies focusing on lifestyles patterns.

The aim of the present study was to examine the associations of objectively measured physical activity (PA) with several markers of fatness and fitness in a relatively large sample of adolescents with Down syndrome (DS). This study comprised a total of 100 adolescents with DS (37 females) aged 11-20 years-old, and a sex-matched sample of 100 adolescents without disabilities, participating in the UPDOWN study. The ALPHA health-related fitness test battery for adolescents was used to assess fatness and fitness. PA was measured by accelerometry. Adolescents with DS had higher fatness and significantly lower fitness levels in all variables measured than adolescents without DS (all p0.05). Moderate-to-large effects were observed in fatness variables (d=0.65-1.42), but particularly large values were found in fitness variables (d=2.05-2.43). In addition, PA levels was not associated with fatness variables, whereas total PA and vigorous PA were associated with all fitness variables (p0.05), and moderate-vigorous PA (MVPA) was associated with muscular fitness (p0.05), after adjusting for potential confounders. Further analysis revealed that there were differences in fitness by tertiles of vigorous PA between the lowest and the highest groups in all fitness variables (all p0.05). However, no significant differences were found in fitness by tertiles of MVPA according with PA guidelines (≥60min in MVPA). Our findings indicate that PA levels are not associated with fatness variables, whereas high PA levels, in particular vigorous PA, are positively associated with high fitness in adolescents with DS.

Supporting positive change in lifestyle behaviours is a priority in tackling the health inequalities experienced by adults with intellectual disabilities. In this systematic review, we examine the evidence on the definition, measurement and epidemiology of sedentary behaviour of adults with intellectual disabilities. A systematic literature search of PUBMED, EMBASE, MEDLINE and Google Scholar was performed to identify studies published from 1990 up to October 2015. Nineteen papers met the criteria for inclusion in the systematic review. Many researchers do not distinguish between insufficient physical activity and sedentary behaviour. None of the studies reported the reliability and validity of the methods used to measure sedentary behaviour. Sedentary time, assessed objectively, ranged from 522 to 643 min/day: higher than in adults without intellectual disabilities. This first-ever review of sedentary behaviour and intellectual disabilities found that at present the evidence base is weak. Studies calibrating accelerometer data with criterion measures for sedentary behaviour are needed to determine specific cut-off points to measure sedentary behaviour in adults with intellectual disabilities. Researchers should also examine the reliability and validity of using proxy-report questionnaires to measure sedentary behaviour in this group. A better understanding of sedentary behaviour will inform the design of novel interventions to change lifestyle behaviours of adults with intellectual disabilities.

Objectives: The aim was to examine the association of potential socioeconomic indicators with obesity and physical fitness components in south Brazilian adolescents with Down syndrome. Methods: This study comprised a total of 1249 (669 boys) adolescents with Down syndrome aged 10 to 20 with complete baseline data. Socioeconomic indicators were assessed by a proxy-report questionnaire. Body mass index and physical fitness were assessed using a PROES-BR health-related fitness test battery. Results: Socioeconomic status is not associated with body mass index in adolescents with Down syndrome. In addition, two of five physical fitness variables were associated with groups of family income and paternal education level in boys, while one of five physical fitness variables were associated with groups of paternal and maternal education level in girls. Conclusion: Our results suggest that socioeconomic indicators are associated with some components of physical fitness in Brazilian adolescents with Down syndrome. These associations depend on the socioeconomic status and physical fitness components in boys and girls.

El proposito del estudio fue analizar las percepciones de los agentes participantes y los factores que inciden en la inclusion de un nino con sindrome de Down (SD) en un programa de natacion recreativa. Los participantes fueron: un joven con SD, nueve jovenes sin discapacidad diagnosticada, la monitora de natacion, el coordinador de la actividad y la madre del nino con SD. El presente estudio, basado en una metodologia cualitativa, recogio la informacion a traves de entrevistas semi-estructuradas, observacion sistematica y diario de la investigadora. La utilizacion de un proceso inductivo permitio categorizar la informacion y obtener los siguientes resultados: es necesaria una mayor coordinacion entre los agentes implicados, adaptar el programa en funcion de las caracteristicas de todos los participantes, mejorar la formacion especifica de los tecnicos responsables y la fluidez de la comunicacion entre los agentes implicados para posibilitar la inclusion del nino con SD a traves de la natacion recreativa.PALABRAS CLAVES: inclusion, natacion recreativa, sindrome de Down. ABSTRACT The purpose of this study was to analyse the perceptions of the participant agents and factors affecting the inclusion of a child with Down syndrome (DS) in a recreational swimming activity program. Program participants included: a child with DS, nine children without diagnosed disabilities, the swimming instructor, the mother of a child with DS and the coordinator of the activity. This study was based on qualitative research approach and data were collected through semi-structured interviews, systematic observation and research diary. The following results were obtained after the inductive process: the need of greater coordination among those involved, designs appropriate programs based on the characteristics of all participants, improve specific training of technicians responsible as well as improve the communication of the agents participating in order to enable the inclusion of a child with DS in a recreational swimming activity.KEYWORDS: inclusion, recreational swimming, Down syndrome.

The Assessing Levels of Physical Activity (ALPHA) health-related fitness test battery is a set of reliable, valid, and feasible tests to assess health-related physical fitness in children and in adolescents. The aim of this study was to examine the reliability of this battery in adolescents with Down syndrome (DS). The extended ALPHA health-related fitness test battery was performed twice within 1 month in 17 apparently healthy adolescents, aged 12-18 years, with DS who had an intelligence quotient ≥ 35. Intraclass correlation coefficient (ICC) was used to determinate test-retest reliability, and nonparametric Wilcoxon signed rank test was used to compare mean differences between measurements. With the exception of subscapular skinfold test, which obtained a moderate agreement (ICC = 0.64), all tests had a very high reliability: the 20-m shuttle-run test (ICC = 0.86), the right handgrip strength test (ICC = 0.86), the left handgrip strength test (ICC = 0.86), the standing broad jump test (ICC = 0.85), body mass index (ICC = 0.95), waist circumference (ICC = 0.98), triceps skinfold (ICC = 0.85), and the 4 × 10-m shuttle-run test (ICC = 0.92). There were no significant differences (all p > 0.05) in any of the tests. The ALPHA health-related fitness battery is reliable for measuring health-related components of fitness in adolescents with DS.

[Purpose]: To examine the association between adherence to the Mediterranean diet and academic performance in children and adolescents. [Methods]: This is a cross-sectional study conducted with 1371 youth aged 12.04 ± 2.50 years (685 girls) in Spain during 2011–2012. Adherence to the Mediterranean diet was assessed using the KIDMED index (Mediterranean Diet Quality Index in children and adolescents), which includes 16 questions on specific dietary patterns. Levels of adherence were classified into three groups: poor adherence (0–3), average adherence (4–7), and good adherence (8–12). Academic performance was assessed through school records using four indicators: math, language, an average of math and language, and grade point average score. [Results]: Adherence to the Mediterranean diet was related to academic performance (β ranging from 0.107 to 0.148; all P, The UP&DOWN study was supported by the DEP 2010-21662-C04-00 Grant from the National Plan for Research, Development and Innovation [R+D+i] MICINN.

Objective: To examine the association of maternal physical activity before and during pregnancy with academic performance in youth. Methods: This study included 1868 youth (6–18 years) and their mothers. Mothers recalled their physical activity before and during pregnancy. Mothers were categorized into four groups: ‘‘remained active’’, ‘‘became inactive’’, ‘‘became active’’ and ‘‘remained inactive’’. Academic performance was assessed through school records. Results: Boys whose mothers practiced physical activity before or during pregnancy had significantly higher scores in academic performance indicators independently of physical activity, fitness, current body mass index (BMI) and birthweight than those whose mothers did not practice physical activity before or during pregnancy (all p50.05). In addition, boys whose mothers remained active had higher scores in all academic indicators (ranging from +0.358 to +0.543) than boys whose mothers remained inactive. Boys whose mothers remained active had higher scores in Language (score +0.546; 95% CI, 0.150–0.940), average of Math and Language (score +0.468; 95% CI, 0.100–0.836) and grade point average (GPA) (score +0.368; 95% CI, 0.092–0.644) than boys whose mothers became active. Conclusions: Maternal physical activity before and during pregnancy may positively influence youth’s academic performance. Continuing maternal physical activity practice during pregnancy may have greater benefits for youth’s academic performance.

The aim of this study was to identify potential correlates of sedentary time and television (TV) viewing time in youth with Down syndrome (DS). A total of 98 adolescents with DS (63 males) aged 11-20 years old participated in this study. Total sedentary time was measured using accelerometers, while total TV viewing time and potential correlates were measured using proxy-report questionnaire. Analyses of covariance and a stepwise multiple linear regression were performed to examine correlates of total sedentary time and total TV viewing time. Different potential correlates were associated with total sedentary time (mother age, mother TV viewing time, perceived benefits of physical activity, birth order and having nearby shops in the neighbourhood) and total TV viewing time (father TV viewing time, TV viewing time with parents, family dietary habits during watching TV and weekend days time indoor). The identification of correlates associated with sedentary behaviour, principally those considered modifiable such as social and environmental factors, may contribute to development strategies to decrease sedentary behaviour in adolescents with DS and consequently promote a healthier lifestyle.