This study was done to determine the kinematic and kinetic relationships between the squatting vertical jump and the Olympic hang snatch lift. Kinematic data were analyzed via the Peak 3-D system; kinetic data were analyzed via the AMTI force plate system. Two genlocked video cameras recorded performance. The subjects were 7 male varsity athletes from an NCAA Div. I school. Ground reaction force data of the lower extremities and angular displacements of the left hip, knee, and ankle joints were collected. The moments of power and force and the angular displacements were analyzed. Results revealed similar kinetic features between the squatting vertical jump and the hang snatch lift during the propulsive phase. However, angular displacements of the left hip, knee, and ankle were statistically dissimilar between both exercises during the propulsive phase. On the basis of the similar kinetic features, Olympic-style lifting may be beneficial in improving power.
(C) 1996 National Strength and Conditioning Association