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女子中长跑运动员与乏训练者在不同负荷状态下STI变化特征的比较与评价
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作者 郝选明 杨建昌 段文杰 《西安体育学院学报》 CSSCI 1993年第1期62-68,82,共8页
本研究通过对优秀耐力跑运动员与非运动员STI的变化进行比较,以观察女子中长跑运动员在安静状态下、三级递增负荷期间以及恢复期间STI诸多指标的变化特征、变化规律以及各指标变化之间的相互关系,分析变化产生的原因,并提出相应的评价... 本研究通过对优秀耐力跑运动员与非运动员STI的变化进行比较,以观察女子中长跑运动员在安静状态下、三级递增负荷期间以及恢复期间STI诸多指标的变化特征、变化规律以及各指标变化之间的相互关系,分析变化产生的原因,并提出相应的评价标准。结果发现优秀运动员STI表现出:①STI各指标受HR影响较小;②LVET、EMT、MST、ICT及PEP在负荷过程中均有一临界值,且在最大负荷期间仍保持相对稳定;③在负荷状态下EML与Q-U/LVET比值保持相对稳定;④PEP/LVET比值随负荷递增不断递减;⑤STI各指标恢复速率高。 展开更多
关键词 心脏功能 心血管机能 心血管机能变化 STI测定 STI指标
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Women and exercise in aging 被引量:3
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作者 Kristina L.Kendall Ciaran M.Fairman 《Journal of Sport and Health Science》 SCIE 2014年第3期170-178,共9页
Aging is associated with physiological declines, notably a decrease in bone mineral density (BMD) and lean body mass, with a concurrent increase in body fat and central adiposity. Interest in women and aging is of p... Aging is associated with physiological declines, notably a decrease in bone mineral density (BMD) and lean body mass, with a concurrent increase in body fat and central adiposity. Interest in women and aging is of particular interest partly as a result of gender specific responses to aging, particularly as a result of menopause. It is possible that the onset of menopause may augment the physiological decline associated with aging and inactivity. More so, a higher incidence of metabolic syndrome (an accumulation of cardiovascular disease risk factors including obesity, low-density lipoprotein cholesterol, high blood pressure, and high fasting glucose) has been shown in middle-aged women during the postmenopausal period. This is due in part to the drastic changes in body composition, as previously discussed, but also a change in physical activity (PA) levels. Sarcopenia is an age related decrease in the cross-sectional area of skeletal muscle fibers that consequently leads to a decline in physical function, gait speed, balance, coordination, decreased BMD, and quality of life. PA plays an essential role in combating physiological decline associated with aging. Maintenance of adequate levels of PA can result in increased longevity and a reduced risk for metabolic disease along with other chronic diseases. The aim of this paper is to review relevant literature, examine current PA guidelines, and provide recom- mendations specific to women based on current research. 展开更多
关键词 AEROBIC Exercise prescription FLEXIBILITY Older adults Strength training
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