| Title | Acute Effect of Drop Jumping on Throwing Performance. | | Author(s) | Terzis G, Spengos K, Karampatsos G, Manta P, Georgiadis G | | Institution | 1Department of Track and Field, School of Physical Education and Sport Science, University of Athens, Athens, Greece; and 2Neurology Clinic, Aiginition Hospital, Division of Public Health, Psychiatry and Neurology, Medical School, University of Athens, Athens, Greece. | | Source | J Strength Cond Res 2009 Oct 24. | | Abstract | Terzis, G, Spengos, K, Karampatsos, G, Manta, P, and Georgiadis, G. Acute effect of drop jumping on throwing performance. J Strength Cond Res 23(x):000-000, 2009-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. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19858755 |
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