Effect of starting stance on sprint time in NAIA volleyball players

(Die Auswirkung der Ausgangsstellung auf die Sprintzeit von NAIA Volleyballspielern)

Foot position (i.e. starting stance) likely plays an important role in influencing short-distance sprint speed, and therefore, the ability to reach a ball. The purpose of this study was to evaluate four different starting stances on sprint speed. Twenty-six NAIA collegiate volleyball players, (age men 20.85 +/- 2.79 yrs, women 19.31 +/- 1.25 yrs, height men 191.28 +/- 8.51cm, women 179.16 +/- 7.73cm, mass men 83.52 +/- 11.77kg, women 69.43 +/- 9.74kg) volunteered to participate in one testing session. Each subject warmed up with a 3-lap jog around the volleyball court. Following warm-up, subjects performed twelve 15ft sprints, completing three trials each of four starting stances (parallel [P], false-step [FS], staggered [S], and staggered false-step [SFS]). Investigators randomized stance order. A 2 x 4 (sex x condition) mixedfactor repeated measures ANOVA revealed there was no significant interaction of sex and condition; however, there were main effects for sex and condition. The main effect for sex demonstrated that males were faster than females. Players ran significantly slower using the P stance (1.25 +/- 0.09 s) than any other starting stance (SFS = 1.14 +/- 0.06 s, S = 1.16 +/- 0.07 s, FS = 1.18 +/- 0.10 s). The SFS stance produced faster speeds than the FS stance. This study indicates that starting with a staggered stance (whether employing a false step or not) produces the greatest sprinting velocity over the initial 15ft. Although taking a false-step seems counterproductive, the resultant stretch-shortening cycle likely increases force production of the push off phase and therefore, sprint speed. The S stance might produce greater speeds by reducing movement time in response to a stimulus. Volleyball players might increase their sprint speed by utilizing either a staggered false-step or a staggered stance prior to accelerating.
© Copyright 2010 The Journal of Strength and Conditioning Research. National Strength & Conditioning Association. Alle Rechte vorbehalten.

Bibliographische Detailangaben
Schlagworte:
Notationen:Trainingswissenschaft Spielsportarten
Veröffentlicht in:The Journal of Strength and Conditioning Research
Sprache:Englisch
Veröffentlicht: 2010
Online-Zugang:https://doi.org/10.1097/01.JSC.0000367136.24960.9e
Jahrgang:24
Heft:S1
Seiten:1
Dokumentenarten:Artikel
Level:hoch