Int J Sports Med 2011; 32(3): 223-228
DOI: 10.1055/s-0030-1268502
Behavioural Sciences

© Georg Thieme Verlag KG Stuttgart · New York

Contribution of Trunk Muscularity on Sprint Run

T. Kubo1 , Y. Hoshikawa2 , M. Muramatsu2 , T. Iida2 , S. Komori3 , K. Shibukawa4 , H. Kanehisa5
  • 1University of Tokyo, Life Sciences (Sports Sciences), Tokyo, Japan
  • 2Hamamatsu Photonics K.K., Sports Photonics Laboratory, Iwata-city, Japan
  • 3Hamamatsu Pjotonics K.K., Central Research Laboratory, Hamamatsu, Japan
  • 4Yamaha Football Club Co. Ltd, Yamaha Football Club, Iwata, Japan
  • 5National Institute of Fitness and Sports in Kanoya, Sport performance, Kanoya-shi, Japan
Weitere Informationen

Publikationsverlauf

accepted after revision November 01, 2010

Publikationsdatum:
16. Dezember 2010 (online)

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Abstract

This study aimed to investigate how the trunk muscularity is related to sprint running performance. In 23 youth soccer players, the cross-sectional images at the mid level of each of L1–L2, L2–L3, L3–L4, L4–L5, and L5–S1 were obtained using magnetic resonance imaging to determine the cross-sectional areas (CSAs) of rectus abdominis, oblique, psoas major, quadratus lumborum and erector spinae muscles. The times taken to sprint over 20 m were measured, and the mean velocity of running was calculated for each of the 2 distances (V10 m and V20 m) and for the distance from 10 m to 20 m (V10–20 m). The CSA values of the 5 slice levels for all muscles except for the quadratus lumborum and those of the 3 slice levels (L1–L2, L2–L3 and L3–L4) for the quadratus lumborum were averaged and expressed relative to the two-third power of body mass (CSA/BM2/3). The CSA/BM2/3 values of the erector spinae and quadratus lumborum were selected as significant contributors to predict V10 m (R 2 =0.450), V20 m (R 2 =0.504) and V10–20 m (R 2 =0.420). The current results indicate that the muscularity of the erector spinae and quadratus lumborum contributes to achieving a high performance in sprint running over distances of less than 20 m.

References

Correspondence

Dr. Hiroaki Kanehisa

National Institute of Fitness and

Sports in Kanoya

Sport performance

1 Shiramizu

Kanoya-shi, Kagoshima

8912393 Kanoya-shi

Japan

Telefon: +81/0994/46 4932

Fax: +81/0994/46 5024

eMail: hkane@nifs-k.ac.jp