4
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2006 / 6
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pp. 129 - 137
不同騎乘姿勢對原地腳踏車運動之生理反應的影響
The Effects of Different Upper Body Positions on Physiological Responses during Maximal and Submaximal Cycling
作者
周峻忠 Chun-Chung Chou
*
(國立台北科技大學體育室 Physical Education Office, National Taipei University of Technology)
潘賢彰 Hsien-Chang Pan
(國立台灣師範大學 National Taiwan Normal University)
林正常 Jung-Charng Lin
(中國文化大學體育學系 Department of Physical Education, Chinese Culture University)
周峻忠 Chun-Chung Chou
*
國立台北科技大學體育室 Physical Education Office, National Taipei University of Technology
潘賢彰 Hsien-Chang Pan
國立台灣師範大學 National Taiwan Normal University
林正常 Jung-Charng Lin
中國文化大學體育學系 Department of Physical Education, Chinese Culture University
中文摘要
目的:比較在原地腳踏車測功儀上進行最大運動與非最大強度運動(45%、55%、65% VO2(下標 max))測驗時,採用直立姿勢(upright position, UP)與俯握姿勢(aero position, AP)所測得之生理反應是否有所差異。方法:實驗對象為10名健康男性(年齡23.3±0.9歲;身高175.6±6.7公分;體重72.6±7.3公斤),以平衡次序之方式,在原地腳踏車測功儀上,分別以UP與AP各進行一次最大運動測驗(二次測驗時間至少間隔24小時)。最大運動測驗完後一星期再進行非最大強度運動測驗,依最大運動之實施方式,各進行一次30分鐘非最大強度運動測驗(45% VO2(下標 max), 55% VO2(下標 max), 65% VO2(下標 max)各10分鐘)。結果:在最大運動測驗的結果發現UP在最大攝氧量、最大換氣量、最大心跳率與運動至衰竭時間顯著高於AP(41.2±4.9 vs. 37.1±4.6 ml/kg/min; 126.3±19.7 vs. 113.1±24.6 L/min; 185.6±6.6 vs. 180.7±8.5 beats/min; 671.7±56.9 vs. AP: 651.6±55.7sec);(p<.05)。而非最大強度運動測驗之結果發現在45% VO2(下標 max)時,UP在攝氧量與心跳率顯著低於AP(19.9±3.4 vs. 20.9±3.6ml/kg/min; 124.4±12.9 vs. 128.4±12.0beats/min)(p<.05)。結論:在原地腳踏車測功儀上以不同之騎姿勢進行最大運動及45% VO2(下標 max)之非最大強度運動測驗,所獲得之生理反應並不相同,因此若是以檢測最大攝氧量為主要考量時,則採用UP可以得到較高之數值。
英文摘要
Purpose: The purpose of this study was to compare physiological variables from different upper body positions, upright position (UP) verse aero position (AP), at maximal and submaximal exercise on cycle ergometer. Methods: Ten healthy males (age 23.3±1.0yrs; height 175.6±6.7 cm; weight 72.6±7.3 kg) with no habitual training were recruited to participate. By counter-balanced design, all subjects completed 2 exercise tests under different positions respectively on different days, which were maximal test and 30 minute graded-submaximal exercise test (45% VO2(subscript max), 55% VO2(subscript max), 65% VO2(subscript max) 10 min respectively) in both upright and aero positions. Physiological responses (VO2(subscript max), VO2, V(subscript E), HR) were obtained for analysis. Results: In maximal test with upright position, subjects had significantly greater VO2(subscript max) (41.2±4.9 vs. 37.1±4.6 ml/kg/min, p<.05), V(subscript E)max (126.3±19.7 vs. 113.1±24.6 L/min, p<.05), HRmax (185.6±6.6 vs. 180.7±8.5 beats/min, p<.05) and time to exhaustion (671.7±56.9 vs. 651.6±55.7 sec, p<.05) responses than aero position. In submaximal test at 45% VO2(subscript max), it's noted that significantly greater oxygen uptake (VO2) (19.9±3.4 vs. 20.9±3.6 ml/kg/min, p<.05) and heart rate (HR) (124.4±12.9 vs. 128.3±12.0 beats/min, p<.05) were found in aero position. In submaximal test at 55% VO2(subscript max) and 65% VO2(subscript max), there were no significant differences between two positions. Conclusions: Different body positions affect physiological responses when testing at maximal and 45% VO2(subscript max) submaximal exercise intensities in cycle ergometer. For maximal exercise testing, upright position should be employed in order to achieve individual maximal physiological response on cycle ergometer.
中文關鍵字
直立姿勢; 俯握姿勢; 最大運動; 非最大強度運動
英文關鍵字
upright position (UP); aero position (AP); maximal exercise test; submaximal
exercise test