TWO-HANDED ISOMETRIC PULLING STRENGTHS AT DIFFERENT FLOOR-SLOPE ANGLES1

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Abstract

This study recruited 10 Taiwanese men (M age = 20.4 yr., SD = 1.9) to examine the effects of exertion height (30%, 50%, 70%, and 90% stature) and as cending floor-slope angle (0°, 5°, 10°, and 15°) on maximum horizontal isometric pulling strengths. Analysis showed pulling strength decreased linearly with exertion height and increased linearly with floor-slope angle. The pulling strength at the exertion height of 90% stature was only 35% to 40% of that of 30% stature. The pulling strength of the 15° floor-slope angle was approximately 127.6% to 150.9%, dependent on exertion height, of that of the 0° floor-slope angle. The linear correlations between pulling strength and exertion height and between pulling strength and floor-slope angle were linear.

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