| Summary: | 碩士 === 國立師範大學 === 體育學系 === 83 === The purpose of this stydy is to analysis the
kinematic and kinetic differences of drop landing
from low impact front knee lift and two of high
impact(F.K.L)aerobic dance movements.Ten under-
graduateand seven graduade female students seve-
red as the subjects for this study.There mean hei-
ght,weight, and age were 163.5 ± 4.2cm,54.6 ±
6.2kg, and 24.2 ± 2.7 years espectively.Kinematic
and Kinetic data were acquired stimultaneously by
using a PEAK high speed camera(125Hz)anda KISTLER
force plate (1200Hz).The variables were tested by
one-way repeated ANOVA ( α =.05) and the tukey m-
ethod posterior comparisions.
The results indiated the range of the propuls-
ion plase of peak ver- tical ground reaction force
were 1.63 to 2.71 BW(Body Weight), peak impact
impulse were 0.177 to 0.268 BW × s(Body Weight ×
second).
The range of the landing phase of passivefor-
ce were 0.44 to 1.57 BW,passive impulse were 0.019
to 0.033 BW × s.First peak vertical ground
reaction force were 1.08 to 3.06BW,first peak
impact impulse were 0.134 to 0.153 BW × s.Second
peak vertical ground reaction force were 1.08 to
1.16 BW,second peak impact impulse were 0.417 to
0.512 BW × s.Significant increase were found in
hip, knee, and ankle joint flexion as drop heiht
increased.
The results indiated that the load of the two
high impact(F.K.L)was significantly higher than
the low impact(F.K.L).It is suggested that the
aerobic dancers should use joints flexion and
longer action time to reduce the load.
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