Physiological and perceptual responses to graded treadmill and cycle exercise in male children

被引：23
|
作者：
Duncan, GE [1 ]
Mahon, AD [1 ]
Gay, JA [1 ]
Sherwood, JJ [1 ]
机构：
[1] BALL STATE UNIV, HUMAN PERFORMANCE LAB, MUNCIE, IN 47306 USA
来源：
PEDIATRIC EXERCISE SCIENCE | 1996年 / 8卷 / 03期
关键词：
D O I：
10.1123/pes.8.3.251
中图分类号：
R72 [儿科学];
学科分类号：
100202 ;
摘要：
Physiological and perceptual responses at ventilatory threshold (VT) and Vover dotO(2) peak were examined in 10 male children (10.2 +/- 1.3 yrs) during graded treadmill and cycle exercise. Treadmill Vover dotO(2)peak (57.9 +/- 6.7 ml . kg(-1) . min(-1)) was higher (p < .05) than the cycle (51.7 +/- 7.7 ml . kg(-1) . min(-1)). Ventilation and heart rate (HR) were higher (p < .05) on the treadmill, while respiratory exchange ratio (RER), rating of perceived exertion (RPE), capillary blood lactate, and test duration were similar between tests. The Vover dotO(2) at VT was higher (p < .05) on the treadmill (36.7 +/- 4.6 ml . kg(-1) . min(-1)) than the cycle (32.5 +/- 4.4 ml . kg(-1) . min(-1)). When VT was expressed as a percentage of Vover dotO(2), peak, there was no difference (p > .05) between tests. The RPE at VT, HR at VT, and VT expressed as a percentage of HRpeak were also similar (p > .05) between tests. Similar to Vover dotO(2) peak, the Vover dot(2) at VT is dependent on the mode of exercise. However, when VT is expressed as a percentage of Vover dotO(2) peak, it is independent of testing modality. The RPE at VT appears to be linked to a percentage of Vover dotO(2) peak rather than an absolute Vover dotO(2).
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收藏
页码：251 / 258
页数：8
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