33 results on '"Lunz, Wellington"'
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2. Desequilíbrio hormonal e disfunção menstrual em atletas de ginástica rítmica
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Coelho, Sabrina Macedo Hott, Simões, Renata Duarte, and Lunz, Wellington
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- 2015
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3. Knowledge about first aid among physical education professionals outside school settings
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Silva, Vitor Loureiro da, primary, Nunes, Régis De Lirio, additional, Pereira, Camila Cristina Adeodato, additional, Lima-Leopoldo, Ana Paula, additional, Lunz, Wellington, additional, Vancini, Rodrigo Luiz, additional, and Leopoldo, André Soares, additional
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- 2022
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4. Como retornar de forma segura à prática de exercícios físicos após ser acometido por Covid-19?
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Carvalho Caldas, Leonardo, primary and Lunz, Wellington, additional
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- 2022
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5. Long-term use of low-dose spironolactone in spontaneously hypertensive rats: Effects on left ventricular hypertrophy and stiffness
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Baldo, Marcelo P., Forechi, Ludimila, Morra, Elis A.S., Zaniqueli, Divanei, Machado, Rebeca C., Lunz, Wellington, Rodrigues, Sérgio L., and Geraldo Mill, José
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- 2011
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6. Acute effects of swimming aerobic exercise on contractility and intracellular calcium handling in isolated right ventricular cardiomyocytes
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Santos, Jean Carlos Loura dos, primary, Claudio, Erick Roberto Gonçalves, primary, Lunz, Wellington, primary, Morra, Elis Aguiar, primary, Silva, Vitor Loureiro da, primary, Cordeiro, Jóctan Pimentel, primary, Bocalini, Danilo Sales, primary, Lima Leopoldo, Ana Paula, primary, and Leopoldo, Andre S, primary
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- 2022
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7. Short-term in vivo inhibition of nitric oxide synthase with L-name influences the contractile function of single left ventricular myocytes in rats
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Lunz, Wellington, Natali, Antonio Jose, Carneiro, Jr., Miguel Araujo, Capettini, Luciano dos Santos Aggum, Baldo, Marcelo Perim, de Souza, Matheus Ornelas, Quintao, Jr., Judson Fonseca, Bozi, Luiz Henrique Marchesi, Lemos, Virginia Soares, and Mill, Jose Geraldo
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Heart cells -- Physiological aspects -- Genetic aspects -- Research ,Nitric oxide -- Physiological aspects -- Genetic aspects -- Research ,Muscle contraction -- Physiological aspects -- Genetic aspects -- Research ,Biological sciences - Abstract
The main purpose of this study was to investigate the effects of short-term L-NAME treatment on the contractile function of left ventricle (LV) myocytes and the expression of proteins related to [Ca.sup.2+] homeostasis. Data from Wistar rats treated with L-NAME (L group, n = 20; 0.7 g/L in drinking water; 7 days) were compared with results from untreated controls (C group, n = 20). Cardiomyocytes from the L group showed increased (p < 0.05) fractional shortening (23%) and maximum rate of shortening (20%) compared with the C group. LV from the L group also showed increased (p < 0.05) expression of the ryanodine receptor 2 and [Na.sup.+]/[Ca.sup.2+] exchanger proteins (76% and 83%, respectively; p < 0.05). However, the L and C groups showed similar in vivo hemodynamic parameters of cardiac function. In conclusion, short-term NOS inhibition determines an increased expression of [Ca.sup.2+] regulatory proteins, which contributes to improving cardiomyocyte contractile function, preserving left ventricular function. Key words: NO synthase, cardiomyocyte, contractility, nitric oxide. La presente etude a eu comme principal objectif d'examiner les effets d'un traitement de courte duree avec L-NAME sur la fonction contractile des myocytes du ventricule gauche (VG) et l'expression des proteines associees a l'homeostasie du [Ca.sup.2+]. On a compare les resultats obtenus chez des rats Wistar traites avec L-NAME (groupe L, n = 20; 0,7 g/L dans l' eau d' abreuvement; 7 jours) avec ceux de rats temoins non traites (groupe T, n = 20). On a observe une augmentation (p < 0,05) de la fraction de raccourcissement (23 %) et de la vitesse maximale de raccourcissement (20 %) dans les cardiomyocytes du groupe L par rapport aux valeurs du groupe T. On a aussi note une augmentation (p < 0,05) de l'expression des proteines du recepteur 2 de la ryanodine et de l'echangeur [Na.sup.+]/[Ca.sup.2+] (76 % et 83 % respectivement; p < 0,05) dans le VG du groupe L. Toutefois, les groupes L et C ont montre des parametres hemodynamiques in vivo similaires de la fonction cardiaque. En conclusion, une inhibition de courte duree de la NOS entraine une augmentation de l' expression des proteines regulatrices du [Ca.sup.2+], ce qui contribue a ameliorer la fonction contractile, en preservant la fonction ventriculaire gauche. Mots-cles : NO synthase, cardiomyocyte, contractilite, monoxyde d'azote. [Traduit par la Redaction], Introduction The long-term use of L-NAME, a nonselective nitric oxide synthase (NOS) inhibitor, induces focal necrosis and fibrosis mainly in the left ventricle (LV) subendocardium, which negatively affects contractile performance [...]
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- 2011
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8. Knowledge about first aid among physical education professionals outside school settings.
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Loureiro da Silva, Vitor, de Lirio Nunes, Régis, Adeodato Pereira, Camila Cristina, Luiz Vancini, Rodrigo, Lunz, Wellington, and Paula Lima-Leopoldo, Ana
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PHYSICAL education ,FIRST aid in illness & injury ,PROFESSIONAL schools ,DEFIBRILLATORS ,PHYSICAL training & conditioning ,AUTOMATED external defibrillation ,CARDIOPULMONARY resuscitation - Abstract
Copyright of Revista Sustinere is the property of Editora da Universidade do Estado do Rio de Janeiro (EdUERJ) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2022
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9. Physical activity and exercise dose-response for protection against chronic diseases and mortality: Are our recommendations accurate?
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Cabral, Thaís, Caliman, Luan, Lunz, Wellington, and Leopoldo2, André
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bepress|Medicine and Health Sciences|Medical Specialties ,SportRxiv|Sport and Exercise Science ,bepress|Life Sciences|Kinesiology ,bepress|Social and Behavioral Sciences ,SportRxiv|Sport and Exercise Studies ,SportRxiv|Sport and Exercise Science|Sport and Exercise Medicine ,SportRxiv|Sport and Exercise Science|Physical Activity - Abstract
Physical activity (PA) and exercise (E) (PA&E) decrease the risk of various chronic non-communicable diseases and early mortality. However, the dose-response relationship has not yet been elucidated. The main recommendations of PA&E have established 'dose' between approximately 500 to 1750 MET-min-wk, or 150-300 min and 75-150 min of moderate or vigorous efforts, respectively. We propose here that protective effect induced by PA&E is achieved at doses lower or higher than those proposed by the main recommendations of PA&E whenever the ideal 'volume-intensity counterbalance' (VIC) is reached. We will achieve a protective effect in different PA&E scenarios, including ‘very high intensity with very low volume’ or the opposite, 'very high volume with very low intensity'. Our hypothesis tries to overcome limitations of current references of dose-response, since our recommendations are paradoxically restrictive and unlimited: (a) they are restrictive because just reflect PA at leisure time, the volume is restricted to time (or duration), the intensity is given only by categories of effort (e.g., moderate and vigorous) and doses below to 500 MET-min-wk are not treated as effective for protection; (b) they are also unlimited because they treat the recommended dose as 'minimum', in such a way that it would be possible to assume that “the more exercise the better!”. However, this statement does not seem valid when considering VIC. We built our proposal from the accumulated scientific knowledge and brought additional elements to induce reflections that can contribute to new works.
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- 2020
10. Physical activity and exercise dose-response for protection against chronic diseases and mortality: Are our recommendations accurate?
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Cabral, Thaís Pereira Dutra, primary, Caliman, Luan Coelho, additional, Leopoldo2, André Soares, additional, and Lunz, Wellington, additional
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- 2020
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11. NOSSAS RECOMENDAÇÕES DE 'DOSE-RESPOSTA' DE ATIVIDADE FÍSICA PARA PROTEÇÃO CONTRA DOENÇAS CRÔNICAS E MORTALIDADE ESTÃO CORRETAS?
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Dutra Cabral, Thaís Pereira, Coelho Caliman, Luan, Soares Leopoldo, André, and Lunz, Wellington
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SCIENTIFIC knowledge ,NON-communicable diseases ,PHYSICAL activity ,CHRONIC diseases ,STANDING position - Abstract
Copyright of Revista Brasileira de Prescrição e Fisiologia do Exercício is the property of Instituto Brasileiro de Pesquisa e Ensino em Fisiologia do Exercicio and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
12. Pressão arterial e indicadores de função vascular de corredores com diferentes níveis de desempenho no teste cardiopulmonar
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Silva, Edna Oliveira, primary, Perez, Anselmo José, primary, Bortolotto, Luiz Aparecido, primary, Lunz, Wellington, primary, Mill, José Geraldo, primary, and Carletti, Luciana, primary
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- 2017
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13. The perception of effort is not a valid tool for establishing the strength-training zone
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Lemos, Estela Altoé, Caldas, Leonardo Carvalho, Leopoldo, Ana Paula Lima, Leopoldo, André Soares, Ferreira, Lucas Guimarães, Lunz, Wellington, Lemos, Estela Altoé, Caldas, Leonardo Carvalho, Leopoldo, Ana Paula Lima, Leopoldo, André Soares, Ferreira, Lucas Guimarães, and Lunz, Wellington
- Abstract
The main purpose was to investigate whether the perception of effort during the two first repetitions of strength exercises could be an adequate strategy for estimating the strength-training zone. The sample comprised 11 women (18 to 35 years-old). In the first week, the volunteers performed a 1-RM test in seven exercises on strength machines, and the load was calculated to reach 50%, 70% and 90% of the 1-RM. Over the next three weeks, the volunteers were required to perform randomly the exercises at these three intensities. After the two first repetitions, the volunteers were questioned about how many repetitions they believed they could achieve until failure (self-estimated). Additionally, volunteers were asked to indicate their exertion according Borg scale. After volunteers performed every exercise until concentric failure to complete the repetition maximum test (RMs test). The data were analyzed using linear regression, Pearson correlation and paired t-test. The results showed that the self-estimated number of repetitions underestimated 44% and 30% of the mean values of repetition maximum obtained directly at intensities of 50% and 70% (p < 0.05), respectively. Although repetition maximum were correlated with Borg scale (r = -0.23 to -0.41; p < 0.05) and self-estimated number of repetitions (r = 0.25 to 0.41; p < 0.05), the standard errors of estimate obtained by linear regression were very high (40% to 49%), which prevented any estimation equations. In conclusion, the perception of effort during the two first repetitions is not a satisfactory strategy for estimating the strength-training zone.
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- 2017
14. The perception of effort is not a valid tool for establishing the strength-training zone
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Lemos, Estela Altoé, primary, Caldas, Leonardo Carvalho, additional, Leopoldo, Ana Paula Lima, additional, Leopoldo, André Soares, additional, Ferreira, Lucas Guimarães, additional, and Lunz, Wellington, additional
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- 2017
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15. VO2MAX ESTIMATED BY PREDICTIVE EQUATIONS PRESENTS LOW CONCORDANCE WITH THAT OBTAINED BY CARDIOPULMONARY TEST - GOLD STANDARD
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Miranda,Augusto Luiz Nascimento, Lopes,Kristian Costa, Carletti,Luciana, Perez,Anselmo José, Mill,José Geraldo, and Lunz,Wellington
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Consumo Máximo de Oxigênio ,Maximal Oxygen Consumption ,Corrida ,Resistance Training ,Musculação ,Running - Abstract
RESUMOO objetivo foi avaliar a concordância entre mensurações do VO2maxobtidas em teste cardiopulmonar de exercício versus obtidas por equações preditivas. Homens (21-55 anos) foram agrupados em praticantes de musculação (PM; n=31) e corridas (PC; n=28) e não praticantes (SE; n=35). Testou-se 5 equações, uma delas elaborada a partir de amostra brasileira. A concordância foi avaliada por Bland-Altman e as correlações pelo coeficiente de correlação de Pearson (r). Os r entre medida padrão ouro vs. equações ficaram entre 0,27 a 0,75, com p40 mL.kg-1.min1. Conclui-se que as equações preditivas avaliadas nesse estudo geraram medidas de baixa concordância quando comparadas ao padrão ouro, principalmente para VO2max>40 mL.kg-1.min-1. ABSTRACTThe aim was to evaluate the concordance between measurements of VO2max obtained by exercise cardiopulmonary test (gold-standard) vs. that obtained by predictive equations. Men (21-55 years-old) were grouped into Resistance training (RT; n=31), long-distance runners (R; n=28) and non-exercise practitioners (C; n=35). Five equations were tested, one of them made from Brazilian sample. The concordance was evaluated by Bland-Altman, and correlation analysis by Pearson's coefficient (r). The r between gold-standard vs. equations ranged 0.27 to 0.75, with p40 mL.kg-1.min-1. In conclusion, the predictive equations tested generate low concordance when compared to VO2maxgold-standard test, mainly for VO2max>40 mL.kg-1.min-1.
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- 2015
16. Comparação da resposta autonômica cardiovascular de praticantes de musculação, corredores de longa distância e não praticantes de exercício
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Lunz, Wellington, Miranda, Rodrigo Nascimento, Dantas, Eduardo Miranda, Morra, Elis Aguiar dos Santos, Carletti, Luciana, Perez, Anselmo José, and Mill, José Geraldo
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The aim of the study was to compare the cardiovascular autonomic response (CAR) of recreational weight trainers, long distance runners and non-exercised subjects. Men, 21 to 55 years old, were grouped in: recreational weight trainers (W, n = 31), long distance runners (R, n = 28) and non-exercised (C, n = 35). Four strategies of evaluation of the CAR were selected: Resting heart rate (RHR), cold pressor test (CPT), heart rate variability (HRV) and heart rate recovery (HHR) following maximal exercise test. The RHR was lower (R = 54 ± 2; W = 62 ± 2; C= 65 ± 2 bpm; mean ± SE) and the HHR 60s post exercise was larger in the R group (R = 34 ± 3; W = 23 ± 1; C = 24 ± 2 bpm). The R group presented larger high-frequency (HF; 55.1 ± 4.0 n.u) and smaller low-frequency (LF; 43.1 ± 4.0 n.u) components of HRV than C group (HF = 40.7 ± 3.3; LF = 56.7 ± 3.5 n.u.). The W group did not show any differences compared to C group. The study's conclusion was that long-term weight-training program, unlike of long-term running training, it is not able to alter significantly the regulatory pattern of CAR. Objetivou-se comparar a resposta autonômica cardiovascular (RAC) de praticantes de musculação, corredores de longa distância e não praticantes de exercício. Homens, 21 a 55 anos, foram agrupados em: Praticantes Musculação (PM, n = 31); Praticantes Corrida (PC, n = 28); Controle (C, n = 35). Foram selecionadas quatro técnicas para avaliação da RAC: Frequência cardíaca de repouso (FCR), Teste pressórico do frio (TPF), Variabilidade da FC (VFC) e recuperação da FC pós-teste máximo em esteira. A FCR foi menor no grupo PC (PC = 54 ± 2; PM= 62 ± 2; C = 65 ± 2 bpm; média ± EPM). A recuperação da FC aos 60 s pós-teste de esforço foi maior no grupo PC (PC = 34 ± 3; PM = 23 ± 1; C = 24 ± 2; bpm). Quanto aos parâmetros espectrais de alta (HF) e baixa (LF) frequência da VFC, o grupo PC apresentou maior HF (55,1 ± 4,0 n.u) e menor LF (43,1 ± 4,0 n.u) comparado ao grupo C (HF = 40,7 ± 3,3; LF = 56,7 ± 3,5 n.u). O grupo PM não apresentou qualquer diferença de RAC em comparação ao grupo C. Conclui-se que prática contínua em musculação por longo prazo, diferentemente da prática de corrida de longa distância, não é capaz de alterar significativamente a RAC.
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- 2013
17. Marcadores hematológicos de corredores amadores do município de Vitória/ES
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Mazioli, Ravena Chagas Freire, primary, Santos, Juliana Pinho dos, additional, Silva, Vitor Loureiro da, additional, Lunz, Wellington, additional, Perez, Anselmo José, additional, Leopoldo, Ana Paula Lima, additional, and Leopoldo, André Soares, additional
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- 2016
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18. IMPACTO DA ATIVIDADE FÍSICA SOBRE O RISCO CARDIOVASCULAR NA POPULAÇÃO ADULTA DE VITÓRIA-ES
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Lunz, Wellington, Molina, Maria del Carmen Bisi, Rodrigues, Sérgio Lamêgo, Gonçalves, Christine Pereira, Baldo, Marcelo Perim, Viana, Elaine Cristina, Dantas, Eduardo Miranda, and Mill, José Geraldo
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gasto calórico ,atividade física de lazer ,Risco cardiovascular ,atividade física ocupacional - Abstract
A atividade física (AF) regular é considerada hábito de vida saudável por reduzir o risco de doenças cardiovasculares. Entretanto, há poucos estudos neste sentido realizados em amostras populacionais. Avaliar o impacto da AF de lazer (AFL), ocupacional (AFO) e mista (AFLO) sobre o risco cardiovascular medido pelo escore de Framingham (EF) na população adulta (25-64 anos) de Vitória. Métodos: Estudo transversal em amostra probabilística (N=1.663; ambos os sexos). Os dados foram coletados em questionário, avaliação clínica e laboratorial (coleta de sangue). A estimativa de gasto calórico semanal em AFL, AFO e AFLO foi feita por entrevista e 4 grupos foram constituídos: Sedentário, AFL, AFO e AFLO. Análises de variância e covariância, e testes qui-quadrado e Mantel-Haenszel foram usados para análise estatística. O grupo AFO apresentou valores inferiores para % gordura (%G), colesterol total (CT) e LDL comparado ao grupo Sedentário. A prevalência de tabagismo foi menor nos grupos AFL (11,5%) e AFLO (10,2%), e maior nos grupos Sedentário (26,4%) e AFO (30,2%). EF e o risco (%) de desenvolvimento de doença arterial coronariana em 10 anos (risco DAC) não ajustados foram menores no grupo AFO (EF= 3; 2,65±6,20; risco DAC= 4; 6,79±6,68%; mediana; média±DP) comparado ao Sedentário (EF= 5; 3,85±7,07; risco DAC= 6; 8,41±7,74%). Entretanto, após ajuste para idade e CT, o EF e o risco DAC foram menores no grupo AFL (EF: 2,54±4,18; risco DAC: 6,55±5,29%; média±DP) comparado aos grupos Sedentário (EF: 3,50±4,17; risco DAC: 8,05±5,33%) e AFO (EF: 4,09±4,19; risco DAC: 8,08±5,35%), evidenciando que as variáveis CT e idade foram as principais determinantes das diferenças iniciais em favor do grupo AFO. O estudo mostra impacto positivo da AF de lazer ou laboral na redução do risco cardiovascular populacional.
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- 2011
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19. Transição metabólica no teste progressivo de pessoas treinadas com musculação e corrida
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Rodrigues, Jhennyfer Aline Lima, primary, Perez, Anselmo José, additional, Lunz, Wellington, additional, Mill, José Geraldo, additional, and Carletti, Luciana, additional
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- 2015
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20. VO2max estimado por equações preditivas apresenta baixa concordância com o obtido pelo padrão ouro - teste cardiopulmonar.
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Miranda, Augusto Luiz Nascimento, primary, Lopes, Kristian Costa, additional, Carletti, Luciana, additional, Peres, Anselmo José, additional, Mill, José Geraldo, additional, and Lunz, Wellington, additional
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- 2015
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21. DETERMINAÇÃO DE PERFIL DE REPETIÇÕES MÁXIMAS NO EXERCÍCIO DE EXTENSÃO DE PERNAS E SUPINO RETO COM DIFERENTES PERCENTUAIS DE FORÇA
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Ferreira, Sherley, Marins, João Carlos Bouzas, Silva, Luis Carlos da, Lunz, Wellington, Pimentel, Giuliano Gomes de Assis, and Migliorini, Enio Martins
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Aptidão física ,Técnica de exercício e movimento ,Exercício ,4.09.00.00-2 Educação Física - Abstract
The objectives of this study was to verify if the standard force tables are practicable, if there is difference between the number of maximum repetitions (RM) intra-exercise and between muscular groups, for the same intensity. The sample is composed by 20 individuals of the masculine sex, between 17 and 30 years. Load tests, maximum and RM were applied, for the pectoral muscular group and quadriceps. The statistics analysis was carried through to the level of significance P=0,05. The straight supine year-end results (MR.) compared the extensive chair (CE), presented statistic difference for intensity 80% (P < 0,05). The results of the CE were superior to the ones of MR., except for 50% intensity. The intra-exercise analysis presented statistic difference (P < 0,05) in the straight supine in different percentages of strength. For the CE there was not statistic difference for the intensities 60-70% and 70-80%. The analyzed tables were shown without standardization of values, with enormous variations of values between diverse tables and the number of repetitions between upper/lower member. One concludes that different bands of strength provide differences in the RM number, between individuals and muscular grouping. The limitations of these standard tables evidence the importance of individualized strength programs. Os objetivos desse estudo foram verificar se tabelas de força padrões são praticáveis, se há diferença entre o número de repetições máximas (RM) intra-exercício e entre grupamentos musculares, para a mesma intensidade. A amostra compõe-se de 20 indivíduos do sexo masculino, entre 17 e 30 anos. Foram aplicados testes de carga, máxima e RM, para o grupo muscular peitoral e quadríceps. A análise estatística foi realizada ao nível de significância de até P=0,05. Os resultados do exercício supino reto (SR) comparados a cadeira extensora (CE), apresentou diferença estatística para a intensidade 80% (P < 0,05). Os resultados da CE foram superiores aos do SR, exceto para intensidade de 50%. A análise intra-exercício apresentou diferença estatística (P < 0,05) no supino reto em diferentes percentuais de força. Para a CE não houve diferença estatística para as intensidades 60-70 % e 70-80 %. As tabelas analisadas se mostraram sem padronização de valores, com enormes variações de valores entre as diversas tabelas e no número de repetições entre membro superior e inferior. Conclui-se que diferentes faixas de força proporcionam diferenças no número de RM, entre indivíduos e entre grupamento muscular. As limitações destas tabelas padrões evidenciam a importância de programas de treinamento de força de forma individualizada.
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- 2008
22. Interference of the swimming training at different intensities with experimental colon carcinogenesis
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Lunz, Wellington, Peluzio, Maria do Carmo Gouveia, Dias, Cristina Maria Ganns Chaves, Natali, Antônio José, Azeredo, Eveline Monteiro Cordeiro de, and Alfenas, Rita de Cássia Gonçalves
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CIENCIAS DA SAUDE [CNPQ] ,Carcinogenesis ,Colon ,Exercício ,Carcinogênese ,Cólon ,Exercise - Abstract
Universidade Federal do Espírito Santo The aims of this study were: a) to quantify, to classify and to correlate aberrant crypts foci (ACF) and tumors, in rats with 1,2-dimethylhydrazine (DMH)-induced colorectal carcinogenesis; b) to test whether swimming training at different intensities would affect the number of ACF, number, incidence and size of the tumors, food intake, body weight gain, body composition (fat, protein and water), the levels of serum glucose, total cholesterol (CT), triacylglycerides (TAG), high, low and very low density lipoproteins (HDL, LDL and VLDL) and C-reactive protein (PCR) in animals with DMH- induced carcinogenesis; c) to verify if the fat percentual (carcass and intra-abdominal), glucose and lipidic profile (CT, TAG, HDL, LDL and VLDL) would associate with the number of tumors and ACF; d) to verify if tumor incidence would affect the levels of PCR. Wistar male rats (n=52), 11 week old, were divided into two sedentary groups, with (CE n=10) and without (CD n=6) drug, and three exercised groups, without overload (ED1 n=12), with overload of 2% (ED2 n=12) and 4% (ED3 n=12) of the animal body weight. Animals from ED1, ED2 and ED3 underwent a progressive swimming training program, 5-20 min/day, 5 days/week, for 35 weeks. All exercised animals and those from CE group, received 4 DMH injections (40 mg.kg-1) at the first two weeks of experiment. All animals had free access to water and commercial chow. The results showed that food intake was not statistically different between groups. The body weight gain in animals from CD group was significantly higher than in those from CE, ED1, ED2 and ED3 groups. The percentage of intra-abdominal fat was statistically higher in CD group animals as compared to ED1 and ED3 group. The carcass fat percentage in CD group was significantly higher than in CE, ED1, ED2 and ED3 groups. The water percentage in the carcass was significantly lower in animals from CD group as compared to those in CE, ED1, ED2 and ED3 groups. The carcass protein percentage was not statistically different between groups. Total cholesterol and LDL serum concentrations were higher in CD group than in CE, ED1, ED2 and ED3 groups. Triacylglycerides and VLDL serum concentrations were higher in CD group as compared to ED3 group. The serum concentration of HDL was higher in CD group as compared to CE, ED1 and ED3 groups. The serum concentration of glucose was not statistically different between groups. There was no statistic difference among CE, ED1, ED2 and ED3 groups for PCR. Animals with tumor incidence ( 1) did not present statistical difference in PCR frequency as compared to those with no incidence. Negative associations of the tumor number with carcass and intra- abdominal fat percentual and glucose were observed. There were, in a general way, positive associations of the tumor number with CT, HDL, LDL, VLDL and TAG, but not sufficiently strong (r or rs < 0.60). Positive associations of ACF with CT, HDL, LDL, VLDL and TAG were found, but were usually weak (r or rs 3. Os índices para potência, risco relativo, percentual de redução de FCA e potência de redução do tamanho de FCA, apresentaram melhores resultados para os animais do grupo ED2, seguido pelos grupos ED1 e ED3. O número, incidência e tamanho dos tumores não foram afetados pelo exercício nas intensidades estudadas. Os FCA foram, geralmente, positivamente associados aos tumores colorretais. Os resultados permitem sugerir que: 1) FCA e tumores se localizam, com maior freqüência, nas regiões média e distal do intestino grosso; 2) o exercício, nas intensidades estudadas, não afeta de forma significativa o número, incidência e tamanho de tumores, a ingestão alimentar, ganho de peso, composição corporal, perfil lipídico, glicose e PCR em animais com carcinogênese colorretal induzida por DMH; 3) o exercício moderado oferece proteção contra FCA; 4) glicose e o percentual de gordura não se associam positivamente com tumores do intestino grosso; 5) o número de tumores não apresenta associação com CT, TAG, LDL, VLDL e HDL séricos de jejum; e 6) os níveis de PCR não são afetados pela incidência de tumores colorretais.
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- 2006
23. The perception of effort is not a valid tool for establishing the strength-training zone.
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ALTOÉ LEMOS, ESTELA, CARVALHO CALDAS, LEONARDO, LIMA LEOPOLDO, ANA PAULA, SOARES LEOPOLDO, ANDRÉ, GUIMARÃES FERREIRA, LUCAS, and LUNZ, WELLINGTON
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The main purpose was to investigate whether the perception of effort during the two first repetitions of strength exercises could be an adequate strategy for estimating the strength-training zone. The sample comprised 11 women (18 to 35 years-old). In the first week, the volunteers performed a 1-RM test in seven exercises on strength machines, and the load was calculated to reach 50%, 70% and 90% of the 1-RM. Over the next three weeks, the volunteers were required to perform randomly the exercises at these three intensities. After the two first repetitions, the volunteers were questioned about how many repetitions they believed they could achieve until failure (self-estimated). Additionally, volunteers were asked to indicate their exertion according Borg scale. After volunteers performed every exercise until concentric failure to complete the repetition maximum test (RMs test). The data were analyzed using linear regression, Pearson correlation and paired t-test. The results showed that the self-estimated number of repetitions underestimated 44% and 30% of the mean values of repetition maximum obtained directly at intensities of 50% and 70% (p < 0.05), respectively. Although repetition maximum were correlated with Borg scale (r=-0.23 to -0.41; p < 0.05) and self-estimated number of repetitions (r=0.25 to 0.41; p < 0.05), the standard errors of estimate obtained by linear regression were very high (40% to 49%), which prevented any estimation equations. In conclusion, the perception of effort during the two first repetitions is not a satisfactory strategy for estimating the strengthtraining zone. [ABSTRACT FROM AUTHOR]
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- 2017
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24. Long-term intense resistance training in men is associated with preserved cardiac structure/function, decreased aortic stiffness, and lower central augmentation pressure
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Morra, Elis A., primary, Zaniqueli, Divanei, additional, Rodrigues, Sérgio L., additional, El-Aouar, Lilia M., additional, Lunz, Wellington, additional, Mill, José G., additional, and Carletti, Luciana, additional
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- 2014
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25. Colon cancer and swimming exercise: effect on wistar rat testes
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Freitas, Karine Moura de, primary, Natali, Antônio José, additional, Lunz, Wellington, additional, Costa, Kyvia Lugate Cardoso, additional, Leite, Rodrigo Paula, additional, Dolder, Heidi, additional, and Matta, Sérgio Luis Pinto da, additional
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- 2013
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26. L-NAME Treatment Enhances Exercise-induced Content of Myocardial Heat Shock Protein 72 (Hsp72) in Rats
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Lunz, Wellington, primary, Capettini, Luciano S.A., additional, Davel, Ana P.C., additional, Munhoz, Carolina D., additional, da Silva, Josiane F., additional, Rossoni, Luciana V., additional, Lemos, Virgínia S., additional, Baldo, Marcelo P., additional, Carneiro-Junior, Miguel A., additional, Natali, Antônio J., additional, de Lacerda, Luiz H.S., additional, and Mill, José G., additional
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- 2011
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27. Níveis distintos de Hsp72 no miocárdio de ratas em resposta aos exercícios voluntário e forçado
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Melo, Stéphano Freitas Soares, primary, Lunz, Wellington, additional, Fontes, Elizabeth Pacheco Batista, additional, Dias, Cristina Maria Ganns Chaves, additional, Carneiro Júnior, Miguel Araujo, additional, Moura, Anselmo Gomes de, additional, Carlo, Ricardo Junqueira Del, additional, and Natali, Antonio Jose, additional
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- 2009
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28. Efeitos da suplementação de creatina e do treinamento de potência sobre a performance e a massa corporal magra de ratos
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Franco, Frederico S.C., primary, Natali, Antônio J., additional, Costa, Neuza M.B., additional, Lunz, Wellington, additional, Gomes, Gilton J., additional, Carneiro Junior, Miguel A., additional, and Oliveira, Tânia T., additional
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- 2007
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29. Marcadores hematológicos de corredores amadores do município de Vitória/ES.
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Chagas Freire Mazioli, Ravena, Pinho dos Santos, Juliana, Loureiro da Silva, Vitor, Lunz, Wellington, Perez, Anselmo José, Lima-Leopoldo, Ana Paula, and Soares Leopoldo, André
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COMPARATIVE studies ,IMMUNE system ,NEUTROPHILS ,RUNNING ,SEX distribution ,LEUKOCYTE count - Abstract
Copyright of ConScientiae Saúde is the property of Nove de Julho University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2015
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30. VO2MAX ESTIMADO POR EQUAÇÕES PREDITIVAS APRESENTA BAIXA CONCORDÂNCIA COM O OBTIDO PELO TESTE CARDIOPULMONAR - PADRÃO OURO.
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Nascimento Miranda, Augusto Luiz, Costa Lopes, Kristian, Carletti, Luciana, José Perez, Anselmo, Geraldo Mill, José, and Lunz, Wellington
- Abstract
Copyright of Revista da Educação Física/UEM is the property of Universidade Estadual de Maringa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2015
- Full Text
- View/download PDF
31. Influence of aerobic exercise training associated with mesenchymal stem cells therapy in the morphology and function of the right ventricle of rats with infarct induced in the left ventricle
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Belfort, Felipe Gomes, Cunha, Daise Nunes Queiroz da, Carlo, Ricardo Junqueira Del, Natali, Antônio José, Lunz, Wellington, and Carneiro Júnior, Miguel Araujo
- Subjects
Myocardial infarction ,Coração - ventrículos ,Infarto do miocárdio ,Heart - ventricles ,Physical exercise ,CIENCIAS DA SAUDE::EDUCACAO FISICA [CNPQ] ,Stem cells ,Células-tronco ,Exercícios físicos - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior The aim of this study was to investigate the influence of aerobic exercise training associated with mesenchymal stem cells (MSCs) therapy in the morphology and function of the right ventricle (RV) of rats with infarct (IM) in the left ventricle (LV). Ninety six Wistar male rat (age: 30 days; body weight: 146g ± 10 g) were randomly divided into experimental groups of 16 animals each: sedentary simulated surgery (SED SHAM); sedentary infarcted (SED IM); sedentary infarcted and treated with MSCs (SED IM CT); exercised simulated surgery (EX SHAM); exercised infarcted (EX IM); and exercised infarcted and treated with MSCs (EX IM CT). At the onset and at the end of experimental period all animals were submitted an incremental exercise test to determine the total exercise time until fatigue (TTF). The maximum running speed (MRS) achieved in this test was used to determine the intensity of the exercise training. Twenty four hours after IM in LV and infusion of the MSCs or simulated operation animals from exercised groups started the running training program with incremental load on a motor- driven treadmill (final velocity: 60 % of MRS, 60min/day, 0o inclination, 5 days/week) that lasted for 12 weeks. The animals from sedentary groups remained in their cages for the same period. At the end of the experimental period, eight animals from each group were used for histological and echocardiographic (ECO) evaluations. Right ventricular myocytes from the remained animals of each group were enzymatically isolated and were for measuring cellular morphology, contractility and intracellular global calcium transient [Ca2+]i (stimulation frequency of 1Hz at a room temperature of ~ 25oC). The results showed that exercised animals presented higher TTF than sedentary ones (p < 0,05). The extension of IM was on average 30.40% and it increased heart weight, ventricular weight and ventricular to body weight ratio (p < 0.05). No effects of IM on the absolute and relative RV weights were observed. IM decreased RV function (TAPSE: SED IM = 0,54 ± 0,16 cm vs SED SHAM = 1,40 ± 0,21cm) (p ≤ 0,05), however, no effects of the IM were detected on the RV morphological and structural properties as well as on myocyte morphology (p > 0.05). Myocardial infarction increased the amplitude of cell contraction and of the [Ca2+]i transient (p < 0,05) but reduced both the times to peak and to 50% decay of the [Ca2+]i transient (p < 0.05). Cell therapy resulted in a reduction of IM extension (15,00%) and attenuated the decrease in the RV function (TAPSE: SED IM CT = 1,28 ± 0,17cm vs SED IM = 0,54 ± 0,16 cm) (p < 0,05). However, no effects of cell therapy were found on heart weight, absolute and relative ventricular weights, absolute and relative RV weights, and on RV cell morphology (p > 0,05). Cellular therapy reduced (p< 0,05) the amplitude and time to peak of cell contraction, decreased the amplitude of the [Ca2+]i transient and increased the times to peak and to 50% decay of the [Ca2+]i transient. Exercise training reduced the IM extension (21.33%), but it did not affect heart weight, ventricular weight, ventricular to body weight ratio, absolute and relative RV weight, RV structural morphology as well as cell morphology (p > 0,05). Exercise training improved RV function (TAPSE: EX IM = 1,47 ± 0,17cm vs SED IM = 0,54 ± 0,16 cm), reduced the amplitude of cell contraction and the time to 50% relaxation (p < 0,05) and increased the time to peak of the [Ca2+]i transient (p < 0,05). The combination of treatments (EX + MSCs) had no effects on IM extension, RV function, heart weight, absolute and relative ventricular weights, absolute and relative RV weights, RV structure and cell morphology or cell contractility (p > 0,05). However, the associated treatments reduced the amplitude of the [Ca2+]i transient (p < 0.05). In conclusion, the association of aerobic exercise training with MSCs therapy did not affect the right ventricular morphology and function of rats with myocardial infarction induced in the left ventricle. O objetivo do presente estudo foi verificar a influência do treinamento físico aeróbio associado à terapia com células-tronco mesenquimais (CTMs) na morfologia e função do ventrículo direito (VD) de ratos com infarto (IM) induzido no ventrículo esquerdo (VE). Foram utilizados 96 ratos (Rattus novergicus) da linhagem Wistar, com cerca de 30 dias de idade e peso corporal de 146 g ± 10 g. Os animais foram separados em grupos experimentais com 16 ratos cada: sedentário cirurgia simulada(SED SHAM), sedentário infartado (SED IM), sedentário infartado e tratado com células-tronco mesenquimais (SED IM CT), exercitado cirurgia simulada (EX SHAM); exercitado infartado (EX IM) e exercitado infartado e tratado com células-tronco mesenquimais (EX IM CT). No início e ao final do período de treinamento, todos os animais foram submetidos a um teste de esforço progressivo para determinar o tempo total de exercício até a fadiga (TTF). A velocidade máxima de corrida (VMC) obtida neste teste no início do período foi utilizada para determinar a intensidade de corrida adotada no programa de treinamento. Vinte e quatro horas após a indução do IM no VE e infusão das CTMs ou após realização da cirurgia simulada, os animais dos grupos exercitados iniciaram o programa de treinamento de corrida com carga progressiva em esteira rolante (velocidade final: 60 % da VMC, 60min/dia, 0o de inclinação, 5 dias/semana) que durou 12 semanas. Os animais dos grupos sedentários permaneceram pelo mesmo período em suas caixas. Ao final do período experimento, 8 animais de cada grupo foram utilizados para análises histológicas e ecocardiográficas (ECO) da função do VD. Os cardiomiócitos do VD dos demais animais de cada grupo foram isolados por dispersão enzimática e foram utilizados para análises morfológicas e mensuração da contratilidade e do transiente intracelular global de cálcio [Ca2+]i (frequência de estimulação de 1Hz em temperatura ambiente de ~ 25oC). Os resultados mostraram que os animais treinados apresentaram maior TTF ao final do período de treinamento, comparados aos sedentários (p ≤ 0,05). O IM ocasionou um acometimento de 30,40% do miocárdio, aumentou o peso do coração, pesos absoluto e relativo dos ventrículos (p ≤ 0,05). Não foi detectado nenhum efeito do IM sobre os pesos absoluto e relativo do VD. O IM reduziu (p < 0,05) a função do VD (TAPSE: SED IM = 0,54 ± 0,16cm vs SED SHAM = 1,40 ± 0,21cm). Não foram detectados efeitos do IM sobre as propriedades morfológicas estruturais do VD e sobre a morfologia celular (p > 0,05). O IM aumentou a amplitude de contração celular e do transiente de [Ca2+]i e reduziu os tempos para o pico e para 50% do decaimento do transiente de [Ca2+]i (p ≤ 0,05). A terapia celular reduziu no percentual de área infartada (15 %) e atenuou a redução da função do VD (TAPSE: SED IM CT = 1,28 ± 0,17cm vs SED IM = 0,54 ± 0,16 cm) (p ≤ 0,05). Todavia, a terapia celular não teve efeitos (p > 0,05) sobre o peso do coração, pesos absoluto e relativo dos ventrículos, pesos absoluto e relativo do VD, propriedades morfológicas estruturais do VD e morfologia dos cardiomiócitos (comprimento, largura e volume). A terapia celular reduziu (p < 0,05) a amplitude e o tempo para o pico de contração celular, a amplitude do transiente de [Ca2+]i e aumentou (p < 0,05) tanto o tempo para o pico como o tempo para 50% de decaimento do transiente de [Ca2+]i. O treinamento físico reduziu a área infartada (21,33%), mas não causou efeitos no peso do coração, pesos absoluto e relativo dos ventrículos e pesos absoluto e relativo do VD. Foi observado aumento da função do VD em resposta ao treinamento físico (TAPSE: EX IM = 1,47 ± 0,17cm vs SED IM = 0,54 ± 0,16cm), porém não foram verificados efeitos sobre as propriedades morfológicas estruturais do VD e sobre a morfologia dos cardiomiócitos (p > 0,05). Na contratilidade celular, o treinamento físico reduziu a amplitude de contração e o tempo para 50% do relaxamento celular (p ≤ 0,05). Em relação ao transiente, o treinamento aumentou o tempo para o pico do transiente de [Ca2+]i (p < 0,05). A associação das terapias (EX + CTMs) não teve nenhum efeito sobre o tamanho do IM, a função do VD, o peso do coração, os pesos absoluto e relativo dos ventrículos e do VD, as propriedades morfológicas estruturais do VD, a morfologia e a contratilidades dos miócitos do VD (p > 0,05). Todavia, a associação dos tratamentos reduziu a amplitude do transiente de cálcio nos miócitos do VD (p < 0,05). Concluiu-se que a associação do treinamento físico aeróbio com a terapia com CTMs não afetou a morfologia e a função do VD de ratos com IM induzido no VE.
- Published
- 2014
32. Effects of prior swimming training on experimental colon carcinogenesis in Wistar rats
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Freitas, Juliana Silveira de, Peluzio, Maria do Carmo Gouveia, Neves, Clóvis Andrade, Natali, Antônio José, and Lunz, Wellington
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CIENCIAS DA SAUDE [CNPQ] ,Intestino ,Exercício ,Câncer ,Exercise ,Cancer ,Intestine - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior This study aimed to investigate the effects of prior swimming training prior on the process of experimental colon carcinogenesis induced by 1,2 dimethylhydrazine (DMH) in rats. Wistar rats with 5 weeks of age were randomly divided into 4 groups: control (C) Control + DMH (CD), exercise + DMH (ED), and exercise (E). The animals were housed in collective cages in a room with temperature of 22 ± 2°C and light/dark cycle of 12 hours, where they received food and water ad libitum. Animals from E and ED groups were subjected to a swimming training program (30 min/day, 5 days/week, overload of 6% of body weight) for 8 weeks. In the following two weeks rats from CD and ED groups received two injections of DMH/week, with two days interval between injections. In the following week, after euthanasia the intestine was removed for assessment of aberrant crypt foci (ACF), histomorphometric analysis and counting of inflammatory cells. The liver was removed for determination of antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD). The results show that animals of ED group had lower number of ACF in the proximal intestine as compared to CD (6,66 ±2,88 vs 36,66 ±26,53, respectively). No differences between groups were found for the total number of ACF, independent of regions. The number of ACF≤3 was higher than that of ACF>3 in ED (86,33 ±46,71 vs 6,00 ±3,00 respectively) and CD (97,33 ± 43,31 vs 5,33 ± 4,50 respectively) groups. There was no change in antioxidant enzymes in the animals’ liver. No differences between groups were found for crypt length and width. Inflammatory cell count was higher in ED than in CD group (518,20 ±114,44 vs 317,60 ±46,33, respectively). It was concluded that swimming training prior to the induction of colon carcinogenesis in rats reduced the number of FCA in the proximal region and increased the number of inflammatory cells (eosinophils/neutrophils). These findings suggest a protective role of exercise training against the experimental colon carcinogenesis in rats. Este estudo teve como objetivo investigar a influência dos efeitos do treinamento prévio de natação em relação ao processo de carcinogênese experimental do cólon, induzida por 1,2 dimetilhidrazina em ratos. Alocaram-se ratos Wistar com cinco semanas de idade aleatoriamente em quatro grupos: controle (C); controle + DMH (CD); exercício + DMH (ED); e exercício (E). Os animais foram alojados em gaiolas coletivas (cinco animais por gaiola), em sala com temperatura ambiente de 22 ± 2 ºC e ciclo invertido de 12 horas claro/escuro, onde receberam diariamente ração e água ad libitum. Os animais dos grupos ED e E foram submetidos a um programa de treinamento em natação, durante oito semanas (30 min/dia, 5 dias/semana e sobrecarga de até 6% PC). Nas duas semanas seguintes, os animais dos grupos CD e ED receberam duas injeções de DMH, por semana, na dose de 40mg/kg de peso corporal, com intervalo de dois dias entre as injeções. Após a eutanásia, na 13ª semana, o intestino foi removido para avaliação de focos de criptas aberrantes (FCA), análise histomorfométrica e contagem de células inflamatórias. O fígado foi retirado para determinação de enzimas antioxidantes catalase (CAT) e superóxido dismutase (SOD). Os resultados evidenciaram que os animais do grupo ED apresentaram menos FCA na região proximal que os do grupo CD (6,66 ±2,88 vs 36,66 ±26,53, respectivamente). Nenhuma diferença foi encontrada entre os grupos na contagem total de FCA, independentemente de regiões. O número de FCA≤3 foi maior que o de FCA>3, nos grupos ED (86,33 ±46,71 vs 6,00 ±3,00, respectivamente) e CD (97,33 ± 43,31 vs 5,33 ± 4,50, respectivamente). Não houve alteração nas enzimas antioxidantes no fígado dos animais; bem como na diferença do comprimento e da largura das criptas intestinais entre os grupos. A contagem de células inflamatórias no grupo ED foi maior que a do grupo CD (518,20 ±114,44 vs 317,60 ±46,33, respectivamente). Concluiu-se que o exercício de natação antes da indução de carcinogênese do cólon em ratos preveniu o aumento do número de FCA na região proximal do intestino; entretanto, aumentou o número de células inflamatórias (eosinófilos/neutrófilos), o que sugere o efeito protetor do exercício contra a carcinogênese experimental do cólon nesses animais.
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- 2011
33. Different levels of Hsp72 in female rat myocardium in response to voluntary exercise and forced exercise.
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Melo SF, Lunz W, Fontes EP, Dias CM, Carneiro MA Jr, Moura AG, Del Carlo RJ, and Natali AJ
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- Animals, Body Weight physiology, Epidemiologic Methods, Female, Heart Ventricles pathology, Models, Animal, Myocardium pathology, Organ Size physiology, Physical Conditioning, Animal physiology, Rats, Rats, Wistar, HSP72 Heat-Shock Proteins biosynthesis, Myocardium metabolism, Physical Exertion physiology, Running physiology
- Abstract
Background: Physical exercise induces hemodynamic stress., Objective: To evaluate if voluntary running and forced running induced different levels of stress protein (Hsp72) in the myocardium of female Wistar rats., Methods: Female rats were randomly assigned to the following groups: forced treadmill running group (FR; n= 6), voluntary running group (VR; n=6) and control group (C; n=6). VR group animals had free access to running wheels, and those from FR group underwent a running program on a treadmill (18 m/min, 60 min/day, 5 days/wk) for 8 weeks. Left ventricle (LV) and right ventricle (RV) fragments were collected at sacrifice, and the relative immunoblot contents of stress protein (Hsp72) were determined., Results: VR animals ran on average 4.87 km/wk, and FR rats ran 4.88 km/wk. Animals from VR and FR groups had less body weight gain (p<0.05) than those from C group (81.67 +/- 11.95g vs 81.17 +/- 10.18g vs 111.50 +/- 2.26g, respectively). Heart weight/body weight ratio was not significantly different (p>0.05) among VR, FR and C groups (4.54 +/- 0.79 mg/g vs 4.94 +/- 0.89 mg/g vs 4.34 +/- 0.87 mg/g, respectively). FR group animals had levels of Hsp72 (p<0.05) higher than those from VR, both in LV (287.45 +/- 35.86 % vs 135.59 +/- 5.10 %, respectively) and RV (241.31 +/- 25.83 % vs 137.91 +/- 45.20 %, respectively)., Conclusion: Voluntary running and forced running induced different levels of Hsp72 in the myocardium of female Wistar rats.
- Published
- 2009
- Full Text
- View/download PDF
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