期刊
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
卷 40, 期 7, 页码 1336-1343出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1249/MSS.0b013e31816c4839
关键词
exercise; maximum oxygen consumption; blood pressure; HR
Purpose: To determine whether various intensities of aerobic training differentially affect aerobic capacity as well as resting HR and resting blood pressure (BP). Methods: Sixty-one health young adult subjects were matched for sex and VO2max, and were randomly assigned to a moderate(50% VO2 reserve (VO2R), vigorous (75% VO2R), near-maximal-intensity (95% VO2R), or a nonexercising control group. Intensity during exercise was controlled by having the subjects maintain target HR based on FIR reserve. Exercise volume (and thus energy expenditure) was controlled across the three training groups by varying duration and frequency. Fifty-five subjects completed a 6-wk training protocol on a stationary bicycle ergometer and pre- and posttesting. During the final 4 wk, the moderate-intensity group exercised for 60 min, 4 d.wk(-1) the vigorous-intensity group exercised for 40 min, 4 d.wk(-1) and the near-maximal-intensity group exercised 3 d.wk(-1) performing 5 min at 75% VO2R followed by five intervals of 5 min at 95% VO2R and 5 min at 50% VO2R. Results: VO2max significantly increased in all exercising groups by 7.2, 4.8, and 3.4 mL.min(-1).kg(-1) in the near-maximal-, the vigorous-, and the moderate-intensity groups, respectively. Percent increases in the near-maximal-(20.6%), the vigorous-(14.3%), and the moderate-intensity (10.0%) groups were all significantly different from each other (P < 0.05). There were no significant changes in resting HR and BP in any group. Conclusion: When volume of exercise is controlled, higher intensities of exercise are more effective for improving VO2max than lower intensities of exercise in healthy, young adults.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据