The comparison leg alignment laterality about toeing-out in athletes

• Urabe Yukio

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

• Numano Shuhei

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

• Tonegawa Naoki

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

• Hui Tian

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

• Sasadai Junpei

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

• Maeda Noriaki

  Sports Rehabilitation Section, Graduate School of Biomedical and Health Sciences, Hiroshima University

抄録

【Background/Purpose】 　Anterior cruciate ligament (ACL) injury on left knee occurs more frequently than right knee (Urabe et al, 2002). In the risk of ACL injury, leg alignments of toeing-out ＆ kneeing-in were considered harmfully. However, little data about leg alignment of toeing-out were useful related to risk of ACL injury. This study aimed to verify whether toeing-out is frequently showed in left leg. 【Methods】 　The authors observed the Imperial Palace runners who run in counterclockwise (CCW) around Imperial Palace in Tokyo and the walkers in clockwise（CW）8 km on course in Hiroshima to compare their leg alignment. The observation time was average 30 minutes. Leg alignment was classified into toeing-out, toeing-in and neutral position. The data were analyzed about laterality. 【Ethicalconsideration】 　This study procedures were performed in accordance with the Declaration of Helsinki. 【Results】 　Observations were executed 16 times from 2011 to 2017 around Imperial Palace running in Tokyo. The number of subjects was 155 ± 36 people per 30 minutes. Toeing-out of right leg was 46%, toeing-out of left leg was 11%, neutral leg was 39% and toeing-in was 4%．The observed percentage of toeing-out of right leg was same rate in strait course of Imperial Palace Garden. Toeing-out of left leg was most observed in CW walking in Hiroshima. 【Discussion】 　From the results, main finding is that toeing-out of right leg was increased in CCW running. Thus, toeing-out might be possibility of original alignment or environmental effected one. On the contrary, toeing-out of CCW runners and CW walkers showed opposite tendency that CW walkers frequently showed toeing-out of left leg. Similarly, toeing-out of right leg also showed in strait course of Imperial Palace Garden. It is interesting in whether leg alignment is an original or an effected one.

収録刊行物

• 理学療法学Supplement

  理学療法学Supplement 46S1 (0), F-60-F-60, 2019

  公益社団法人 日本理学療法士協会

キーワード

• ACL injury prevention
• leg alignment
• toeing-out

詳細情報

• CRID: 1390564238111235200
• NII論文ID: 130007693298
• DOI: 10.14900/cjpt.46s1.f-60
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可