@article {11596,
	title = {Acute effect of drop jumping on throwing performance.},
	journal = {J Strength Cond Res},
	volume = {23},
	year = {2009},
	month = {2009 Dec},
	pages = {2592-7},
	abstract = {The purpose of the present study was to investigate the acute effect of drop jumping on throwing performance. Eight men and 8 women, moderately trained subjects with basic shot put skills, performed 3 squat underhand front shot throws after a short standard warm-up. Three minutes later they performed 5 maximal consecutive drop jumps from 40 cm. Immediately after the drop jumps, they repeated the squat underhand front shot throws. On another day, their 6 repetition maximum (RM) muscular strength in leg press was assessed. Muscle biopsies were also obtained from vastus lateralis for the determination of fiber-type composition and fiber cross-sectional area. Throwing performance was significantly increased after drop jumping (8.25 +/- 1.1 m vs. 8.63 +/- 1.3 m, p < 0.01). The percentage of type II muscle fiber area was significantly related to the increase in throwing performance after drop jumping (r = 0.76, p < 0.01). The increase in throwing performance was significant in men (8.94 +/- 1 m vs. 9.60 +/- 0.9 m, p < 0.01) but not in women (7.56 +/- 1 m vs. 7.67 +/- 0.9 m, ns). Of note, the percentage of type II fiber area was higher in men than in women (M: 66.4 +/- 13\%, F: 50.2 +/- 15\%, p < 0.01). Leg press strength (6RM) was moderately related to the increase in throwing performance after drop jumping (r = 0.50, p < 0.05). These results suggest that drop jumping just before a throwing action induces an increase in performance in subjects with a high percentage of type II muscle fiber area and (to a lesser degree) in subjects with enhanced muscular strength.},
	keywords = {Adult, Athletic Performance, Biomechanical Phenomena, competitive behavior, Female, Histocytochemistry, Humans, Leg, Male, Muscle Fibers, Fast-Twitch, Muscle Strength, Quadriceps Muscle, Resistance Training, Sex Characteristics, Track and field},
	issn = {1533-4287},
	doi = {10.1519/JSC.0b013e3181b1b1a3},
	author = {Terzis, Gerasimos and Spengos, Konstantinos and Karampatsos, Giorgos and Manta, Panagiota and Georgiadis, Giorgos}
}
