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Int J Sports Med. 2018 Jun;39(6):468-472. doi: 10.1055/a-0592-7370. Epub 2018 May 14.

Relation Between Iliopsoas Cross-sectional Area and Kicked Ball Speed in Soccer Players.

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1
Doshisha University, Faculty of Health & Sports Science, Kyotanabe, Japan.

Abstract

This study aimed to investigate the relationship between the maximal anatomical cross-sectional area (ACSA) of the iliopsoas muscle and ball speed in side-foot and instep kicks. The ACSA of the psoas major and iliacus was measured in 29 male collegiate soccer players by using magnetic resonance imaging. They performed maximal side-foot and instep kicks to a stationary ball. The kicked ball speed was measured with a high-speed camera. Ball speed in the side-foot and instep kicks was significantly correlated with body height (side-foot kick: r=0.650, P<0.001; instep kick: r=0.583, P<0.001). After adjustment for body height, the maximal ACSA of the psoas major was significantly correlated with ball speed in the side-foot kick (r=0.441, P=0.017), but not in the instep kick. The maximal ACSA of the iliacus was not correlated with ball speed in side-foot or instep kicks, even after adjustment for body height. Our results suggest that: 1) body height is a significant determinant of the ball speed in side-foot and instep kicks, and 2) for a given body height, the maximal ACSA of the dominant psoas major is a factor that affects the ball speed in side-foot kick.

PMID:
29758569
DOI:
10.1055/a-0592-7370
[Indexed for MEDLINE]

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