Differences in activation properties of the hamstring muscles during overground sprinting

Ayako Higashihara, Yasuharu Nagano, Takashi Ono, Toru Fukubayashi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The purpose of this study was to quantify activation of the biceps femoris (BF) and medial hamstring (MH) during overground sprinting. Lower-extremity kinematics and electromyography (EMG) of the BF and MH were recorded in 13 male sprinters performing overground sprinting at maximum effort. Mean EMG activity was calculated in the early stance, late stance, mid-swing, and late-swing phases. Activation of the BF was significantly greater during the early stance phase than the late stance phase (p< 0.01). Activation of the BF muscle was significantly lower during the first half of the mid-swing phase than the other phases (p< 0.05). The MH had significantly greater EMG activation relative to its recorded maximum values compared to that for the BF during the late stance (p< 0.05) and mid-swing (p< 0.01) phases. These results indicate that the BF shows high activation before and after foot contact, while the MH shows high activation during the late stance and mid-swing phases. We concluded that the activation properties of the BF and MH muscles differ within the sprinting gait cycle.

Original languageEnglish
Pages (from-to)360-364
Number of pages5
JournalGait and Posture
Volume42
Issue number3
DOIs
Publication statusPublished - 2015 Sep 1
Externally publishedYes

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Keywords

  • Electromyography
  • Hamstring muscles
  • Hip joint
  • Knee joint
  • Overground sprint

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Rehabilitation
  • Biophysics

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