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Should Athletes Stretch before Exercise?
KEY POINTSTraditional stretching routines performed during warm-up procedures before exercise can increase flexibility for a short time, but there is little scientific evidence that such routines can improve exercise performance, reduce delayed-onset muscular soreness, or prevent injuries.
关键词: exercise performance -
Increased non-oxidative and oxidative ATP production via metabolic pathways in skeletal muscle is essential for the maintenance of force and power production during exercise. However, substrate depletion and accumulation of metabolic byproducts are potential causes of fatigue. Reduced PCr availability can limit power production during sprint exercise, whereas carbohydrate depletion is a major limitation to endurance performance. During sprint exercise increased Pi and H+ may contribute to fatigue, and during prolonged strenuous exercise, the accumulation of NH3, reactive oxygen species, and heat can limit performance. Appropriate training programs and nutritional interventions are potential strategies to enhance fatigue resistance and exercise performance.
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BENEFITS AND LIMITATIONS TO PREHYDRATION
Key Points■ Athletes and others who begin exercise with a less than normal volume of body water are likely to experience adverse effects on cardiovascular function, temperature reuglation, and exercise performance.
关键词: exercise performance