The relationship between muscle thickness in the lower limbs and competition performance in weightlifters and sprinters

Toshihiro Ikebukuro, Keitaro Kubo, Junichi Okada, Hideaki Yata, Naoya Tsunoda

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study aimed to investigate the differences in the development of muscle thickness (MT) in the lower limbs with specific sports-event training. Furthermore, the relationship between MT of the lower limbs for weightlifters and sprinters and their competition performances (total weight lifted and 100m sprint times) was examined. Subjects were 64 males divided into 3 groups: weightlifters (n=20), sprinters (n=20), and untrained subjects as controls (n=24). The MT { relative to (body weight)1/3 } of knee extensors (KE), knee flexors (KF), plantar flexors (PF) and dorsi flexors (DF) was measured at 21 sites (proximal, middle and distal) along the length of the upper and lower leg by B-mode ultrasound. The MT of KE for weightlifters was significantly greater than that for sprinters and controls, while the MT of KF and PF for sprinters was significantly greater than that for weightlifters and controls. The MT of rectus femoris (RF), vastus intermedius (VI), vastus lateralis (VL) and vastus medialis (VM) for weightlifters was significantly greater than that for sprinters and controls, while the MT of RF and VM for sprinters was greater than that of controls. On the other hand, the MT of KE for weightlifters and sprinters (especially VM) correlated significantly with competition performances. These results indicated that squatting affected the MT of KE except for RF while sprinting affected the MT of KF and PF. It was also concluded that the MT of KE for weightlifters and sprinters (particularly VM) was related to their competition performances.

Original languageEnglish
Pages (from-to)401-411
Number of pages11
Journaljapanese journal of physical fitness and sports medicine
Volume60
Issue number4
DOIs
Publication statusPublished - 2011

Keywords

  • Power
  • Sports-event training
  • Ultrasound

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Fingerprint Dive into the research topics of 'The relationship between muscle thickness in the lower limbs and competition performance in weightlifters and sprinters'. Together they form a unique fingerprint.

  • Cite this