Navegando por Palavras-chave "Physical endurance"
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- ItemAcesso aberto (Open Access)Depression, anxiety and quality of life scores in seniors after an endurance exercise program(Associação Brasileira de Psiquiatria - ABP, 2005-12-01) Antunes, Hanna Karen Moreira [UNIFESP]; Stella, Sérgio Garcia [UNIFESP]; Santos, Ruth Ferreira [UNIFESP]; Bueno, Orlando Francisco Amodeo [UNIFESP]; Mello, Marco Tulio de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Conselho Nacional de Desenvolvimento Científico e TecnológicoOBJECTIVE: Mood disorders are a frequent problem in old age, and their symptoms constitute an important public health issue. These alterations affect the quality of life mainly by restricting social life. The participation in a regular exercise program is an effective way of reducing or preventing the functional decline associated with aging. The aim of the present study was to examine the effects of fitness-endurance activity (at the intensity of Ventilatory Threshold 1 (VT-1)) in depression, anxiety and quality of life scores in seniors. METHODS: The study involved 46 sedentary seniors aged 60-75 (66.97 ± 4.80) who were randomly allocated to two groups: 1) Control group, which was neither asked to vary their everyday activities nor to join a regular physical fitness program; and 2) Experimental group, whose members took part in an aerobic fitness program consisting of ergometer cycle sessions 3 times a week on alternate days for six months working at a heart rate corresponding to ventilatory threshold (VT-1) intensity. Subjects were submitted to a basal evaluation using the geriatric depression screening scale - GDS, STAI trait/state (anxiety scale) and SF-36 (quality of life scale). RESULTS: Comparing the groups after the study period, we found a significant decrease in depressive and anxiety scores and an improvement in the quality of life in the experimental group, but no significant changes in the control group. CONCLUSION: The data suggest that an aerobic exercise program at VT-1 intensity suffices to promote favorable modifications in depressive and anxiety scores to improve the quality of life in seniors.
- ItemAcesso aberto (Open Access)Efeito do exercício de ultra endurance sobre as reservas de glicogênio intramuscular e a expressão da proteína AMPK em ratos treinados(Universidade Federal de São Paulo (UNIFESP), 2011) Tarini, Victor Alexandre Ferreira [UNIFESP]; Faloppa, Flávio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Durante o exercício dinâmico, as demandas de trifosfato de adenosina (ATP) aumentam significativamente e a sua reposição ocorre pelo catabolismo do glicogênio e ácidos graxos. Os efeitos do exercício sobre as reservas de glicogênio intramuscular já foram amplamente estudados. Porém, não se tem conhecimento sobre os efeitos do exercício de ultra endurance sobre o seu metabolismo. Nas últimas décadas a proteína AMPK tem sido descrita como um sensor das variações nas reservas de energia, sendo diretamente afetada pela contração muscular. O objetivo do presente estudo foi de verificar os efeitos do exercício de ultra endurance sobre as reservas de glicogênio muscular (GM) e a expressão da proteína AMPK. Métodos: vinte e quatro ratos wistar, machos, foram divididos aleatoriamente em 4 grupos (sedentário S=6, sedentário exaustão SE=6, treinado T=6 e treinado exaustão TE=6), onde T e TE correram progressivamente numa esteira rolante por 1,5 h/dia, 5d/semana durante 12 semanas (60% da Vmáx). Ao final SE e TE foram submetidos a um exercício de ultra endurance (60% de Vmáx) até a exaustão. O gastrocnêmio de ambas as patas foram retirados para análise do glicogênio por método colorimétrico e pela densidade ótica. A expressão gênica e protéica foi determinada por RT-PCR real time e por western blotting respectivamente. Resultados: Os grupos SE e TE apresentaram depleção significativa das reservas de GM (S =0,213 ± 0,003; T =0,203 ± 0,007; SE =0,031 ± 0,006; TE =0,028 ± 0,006 mg/g proteina) (p<0,001). O glicogênio hepático apresentou diferença significante nos grupos T e TE (S= 1,157 ± 0,09, SE= 1,002 ±0,05, T= 1,533 ± 0,05 e TE=1,037 ± 0,05) (p<0,05). O grupo TE apresentou diminuição significativa na glicemia (S=90,43 ± 2,47, SE=85,75 ± 3,18, T=84,84 ± 2,19 e TE=76,02 ± 5,60) (p<0,05). A expressão proteíca da AMPK aumentou em T e TE(p<0,05). Porém, a expressão gênica aumentou somente em TE (p<0,05). Conclusão: O exercício de ultra endurance depletou as reserva de GM predominantemente nas fibras musculares do tipo I. O treinamento de forma isolada afetou positivamente a expressão protéica da AMPK. Sendo mais evidente quando somado o fator exaustão.
- ItemSomente MetadadadosEffects of concurrent training on muscle strength in older adults with metabolic syndrome: A randomized controlled clinical trial(Elsevier Ireland Ltd, 2018) Agner, Vania Fernanda Clemente [UNIFESP]; Garcia, Marcia Carvalho [UNIFESP]; Taffarel, André Andriolli [UNIFESP]; Mourao, Camila Baldini [UNIFESP]; Silva, Isabel Paulo da; Silva, Sara Pereira da [UNIFESP]; Peccin, Maria Stella [UNIFESP]; Lombardi Júnior, Imperio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Introduction: Metabolic syndrome is highly prevalent among older adults. Concurrent training comprises muscle strengthening and aerobic exercise. Objective: Determine the effects of a concurrent training program on muscle strength, walking function, metabolic profile, cardiovascular risk, use of medications and quality of life among older adults with metabolic syndrome. Methods: A randomised, controlled, blind, clinical trial was conducted in the city of Santos, state of São Paulo, Brazil, involving 41 male and female older adults. The participants were randomly allocated to a control group (n = 18) and intervention group (n = 23) and were submitted to the following evaluations: strength – 1 maximum repetition (1MR) for 12 muscle groups; the Six-Minute Walk Test (6MWT); blood concentrations of cholesterol and glucose; the use of medications; and the administration of the SF-36 questionnaire. The intervention was conducted twice a week over a total of 24 sessions of concurrent training: 50 min of strength exercises (40–70% 1MR) and 40 min of walking exercises (70–85% maximum heart rate). Results: Increases in muscle strength were found in the upper and lower limbs in the inter-group analysis and a greater distance travelled on the 6MWT was found in the intervention group (p = 0.001). The intervention group demonstrated a reduction in the consumption of biguanides (p = 0.002). No changes were found regarding metabolic profile, cardiovascular risk or self-perceived quality of life. Conclusion: The findings of this clinical trial can be used for the prescription of concurrent training for older adults with metabolic syndrome for gains in muscle strength and walking distance as well as a reduction in the use of biguanides.