| Summary: | 碩士 === 中國文化大學 === 運動教練研究所 === 86 === ABSTRACT
The purpose of the study was to investigate the mechanics of
armswing during vertical jump. Through the analysis of the jump
performance, and the changes in a small redistribution of
relative vertical impulse contribution among segments, and the
comparison of vertical impulse and shoulder joint angle velocity
by position during the motion process of no-armswing
countermovement jump and armswing countermovement jump
conditions. The data gained from
5 test subjects of the volleyball teams from the Department of
Physical Education of Chinese Culture University. Section was
analyzed for kinematics and kinetics variables while performing
the above mentioned movements, using the Kistler Force Platform
system and Peak Performance video motion analysis system. The
establishing values of variables mentioned above were analysis
by using dependent sample t-test, and the alpha level was 0.05.
Results were as follows:
1. The addition of an armswing to the countermovement jump
brought a significant increase in jump height over the no-
armswing countermovement jump condition.
2. The addition of an armswing to the countermovement jump
brought a significant increase in segmental vertical impulse
(arm, trunk/head and thigh) over the no-armswing countermovement
jump condition.
3. The relative segmental impluse contributions to the net
vertical impluse of the arms had significant increase, and the
trunk/head had significant deline in armswing countermovement
jump condition.
4. The upper arm angle pattern was similar for all subjects in
armswing countermovement jump condition. Peak angle magnitudes
typically occurred at a arm angle of approximately -102.374°
±3.74°.
5. The arm segmental vertical impulse pattern was similar for
all subjects in armswing countermovement jump condition. Peak
impulse magnitudes typically occurred at a arm angle of
approximately -76.88°±7.34°.
6. The different between Peak angle magnitudes and Peak impulse
magnitudes typically occurred was because of the interaction
between trunk extend and armswing.
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