Results: 3042

Estágios de mudança de comportamento para atividade física no lazer em adultos brasileiros: estudo longitudinal

Ciênc. Saúde Colet; 26 (8), 2021
Resumo Objetivou-se analisar a manutenção e a alteração dos estágios de mudança de comportamento para atividade física no lazer (AFL) após quatro anos e sua associação com características sociodemográficas. No ano de 2011, realizou-se um estudo transversal de base populacional com 1.180 indiv...

Effects of rehabilitation programs on heart rate variability after stroke: a systematic review

Arq. neuropsiquiatr; 79 (8), 2021
ABSTRACT Background: It has been shown that the autonomic nervous system can be modulated by physical exercise after stroke, but there is a lack of evidence showing rehabilitation can be effective in increasing heart rate variability (HRV). Objective: To investigate the effectiveness and safety of reh...

Research on influencing factors of adolescents' sports health behaviors in social ecology

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Introduction: Physical exercise has a positive effect on the health of individuals. Long-term sedentary behavior can induce coronary heart disease, hypertension, diabetes, and other chronic diseases. Lack of physical exercise has become the fourth leading cause of death worldwide. Therefore, yo...

Change and development law of adolescents' physical health exercise behavior

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Background: The generation of individual behavior is closely related to the environment in which it is located and is easily affected by environmental factors. Objective: The thesis takes the social ecology model theory as the starting point, applies the five different levels of influencing fa...

Experimental research on forecasting index of biological image aerobic exercise analysis of artificial neural network

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Objective: The paper uses artificial neural network images to explore the effects of aerobic exercise on the gamma rhythm of theta period in the awake hippocampal CA1 area of APP/PS1/tau mice and the low-frequency gamma rhythm of the sleep state hippocampal CA1 area SWR period. Methods: Clean ...

Analyzing the influencing factors of sports fatigue based on algorithm

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Objective: This paper discusses the monitoring method of exercise fatigue and analyzes the influencing factors of exercise fatigue. Methods: Based on the feature extraction method of the fatigue image signal, a series of changes caused by exercise fatigue are analyzed by the biofeedback techni...

Empirical analysis on the reduction of sports injury by functional movement screening method under biological image data

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Introduction: Sports recognition technology gradually mature. Among them, wearable sensors have attracted wide attention because of their accurate recognition. Objective: The following squats are used as an example to determine whether CNN and EMG signals determine whether functional motion is...

Research on athlete's aerobic and anaerobic exercise ability with balanced nutrition

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Introduction: The need for a lactic acid cycle eliminates lactic acid produced during exercise. This process requires energy consumption. D-ribose supplementation can increase muscle cell energy, accelerate the synthesis of PRPP in the heart and skeletal muscle, and eliminate the pentose phosph...

Measurement of local consistency of the whole brain after aerobic exercise based on magnetic resonance imaging

Rev. bras. med. esporte; 27 (4), 2021
ABSTRACT Introduction: The rapid development of rs-fMRI in recent years can provide new scientific evidence of the plasticity of the child's brain. Objective: To reveal the effect of short-term moderate-intensity aerobic exercise on local consistency of brain function in children at rest, and to provid...