Autor: |
KERK, JULIE K., CLIFFORD, PHILIP S., SNYDER, ANN C., PRIETO, THOMAS E., O'HAGAN, KATHLEEN P., SCHOT, PHILIP K., MYKLEBUST, JOEL B., MYKLEBUST, BARBARA M. |
Zdroj: |
Medicine & Science in Sports & Exercise; June 1995, Vol. 27 Issue: 6 p913-919, 7p |
Abstrakt: |
The purpose of this study was to determine whether use of an abdominal binder would affect oxygen uptake, trunk ange of motion, and duration of the stroke phase during wheelchair propulsion. The subjects were six paraplegic wheelchair athletes with T1-T6 injuries and no abdominal muscle function. Each subject performed two trials, one while wearing the binder and one without the binder. Each trial consisted of submaximal and maximal exercise tests conducted on wheelchair rollers. Oxygen uptake was determined by telemetry. Max VO2 values averaged 2.51 1.min −1 while average maximum heart rate values were 190 190 b.min −1. A 3-D video-based motion analysis system was used to obtain kincmatic parameters of wheelchair propulsion. In general, 30 of the cycle time was comprised of the stroke phase, while 70 was comprised of the recovery phase across speeds. There were no statistically significant effects of the abdominal binder on any of the cardiovascular or kinematic variables at submaximal or maximal levels of exercise. Unde the conditions of this laboratory investigation, it appears that an abdominal binder does not alter physiological or selected biomechanical measures in higly trained athletes. |
Databáze: |
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