“physical activity and exercise”的概念、定义、翻译、参考文献-科学参考

单词	physical activity and exercise
释义	physical activity and exercise Encyclopedia 教育学运动与体质健康释 physical activity and exercise体力活动与体育锻炼体力活动是指因骨骼肌收缩引起的能量消耗明显高于静息代谢能量需求的身体活动，包括职业性、交通性、家务性和娱乐性等体力活动。体育锻炼属于娱乐性体力活动，通常是指在休闲时间中有计划、结构化、可重复地以改善和维持体质健康、运动表现为目的的体力活动。在体育领域中，有时体力活动与体育锻炼可以明确地分开，而狭义的体力活动有时与体育锻炼成为同义词。
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