ABSTRACT
INTRODUÇÃO: O sedentarismo é um fator de risco para o desenvolvimento diversas doenças, enquanto o estilo de vida fisicamente ativo e a aptidão física podem atuar na promoção e na manutenção da saúde. OBJETIVO: Verificar o nível de atividade física e compará-lo com indicadores de força muscular e estrutura morfológica em agentes universitários. MÉTODO: Participaram do estudo 44 agentes universitários, dos quais foram obtidas as medidas de massa corporal (MC) e de estatura, para posterior cálculo do Índice de Massa Corporal. A análise do nível de atividade física foi realizada pelo Questionário Internacional de Atividade Física (IPAQ). Em seguida, os agentes universitários foram submetidos a quatro testes de força: preensão manual direita (PMD) e esquerda (PME), tração lombar (TL) e tração de membros inferiores (TMI). A força muscular relativa (%FM) foi estimada pela divisão da força muscular absoluta (FMA=PMD+PME+TL+TMI) pela MC. RESULTADOS: O grupo insuficientemente ativo apresentou significativamente maior MC, maior tempo de comportamento sedentário nos fins de semana e menores indicadores de TL, TMI, FMA e %FM comparado aos fisicamente ativos. CONCLUSÃO: A inatividade física foi associada a menores indicadores de força muscular e maior MC em agentes universitários, sugerindo riscos para a saúde inerentes ao comportamento sedentário.
BACKGROUND: Sedentary behavior is a risk factor for several diseases, while physically active lifestyles and physical fitness contribute to the promotion and maintenance of health. OBJECTIVE: To establish the level of physical activity of university administrative employees and investigate its relationship with muscle strength indicators and morphological characteristics. METHODS: The sample comprised 44 university administrative employees. Data on body mass (BM) and height were collected to calculate the body mass index. The participants' level of physical activity was established based on the International Physical Activity Questionnaire (IPAQ). The participants were subjected to four muscle strength tests: right hand grip (RHG), left hand grip (LHG), lumbar traction (LT) and lower limb traction (LLT). Relative muscle strength (%MS) was calculated dividing absolute muscle strength (AMS=RHG+LHG+LT+LLT) by BM. RESULTS: The insufficiently active participants exhibited significant higher BM, lower LT, LLT, AMS and %MS, and spent more time in sedentary activities on weekends. CONCLUSION: Physical inactivity was associated with poorer muscle strength indicators and higher BM among university administrative employees, pointing to harms inherent to sedentary behavior.
ABSTRACT
This study aims to evaluate the relationship between morphological and metabolic parameters in obese rats induced by MSG, using exercise to determine the glycemic response between animals. Were constituted by 10 adult female Wistar rats, 4-month-old boy with obesity induced by MSG. They measured levels of intake of food and water for a week, and after, there was a swimming test lasting 60 minutes. The results are expressed as mean and standard deviation. It was used the Student t-test for independent samples, a significant difference when considering p<0.05. Occur significant difference between the length of the small intestine, where the obese group has the gut lower 14% (13 cm) compared to the normal group (p<0.05). Regarding the body weight, the average weight of the MSG group was significantly lower (82%; 37g, p<0.05) compared to the Control group. The opposite occurred with visceral adiposity, performing significantly higher in MSG group (54%; 8g, p<0.05) from the average of the Control group. We conclude that the consumption of MSG may lead to obesity by increasing body fat and visceral also morphological differences in the size of the gut and body weight.