Gender differences in the activity and ratio of vastus medialis oblique and vastus lateralis muscles during drop landing

Min Hee Kim, Won Gyu Yoo, Chung Hwi Yi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

[Purpose] The purpose of this study was to determine whether gender differences exist in the activity and ratio of the vastus medialis oblique and vastus lateralis muscles when performing a vertical drop landing. [Subjects] Thirty participants (15 males, 15 females) dropped from the height of their lower leg. [Methods] The EMG activities of the vastus medialis oblique and vastus lateralis muscles were recorded during vertical drop landing using surface electrodes. [Results] The muscle activities and the ratio of both muscles were significantly higher for males than for females. The muscle activity of the vastus medialis oblique muscle was 36.3% for males and 20.2% for females, and that of the lateralis muscle was 34.2% for males and 26.1% for females. The mean ratio of the vastus medialis oblique muscle: vastus lateralis muscle was 1.07 for males and 0.78 for females. [Conclusion] For females, drop landing in females may increase the likelihood of patellofemoral pain syndrome.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalJournal of Physical Therapy Science
Volume21
Issue number4
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation

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