Clarifying the changes in lumbopelvic rhythm during trunk extension among adolescent soccer players

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K16492
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Sports science
• Research Institution: Tokyo International University (2017); Waseda University (2015-2016)
• Principal Investigator: TOJIMA Michio 東京国際大学, 人間社会学部, 講師 (10735442)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 腰部可動域 / 股関節可動域 / 腰痛 / 腰椎骨盤リズム / 立位体後屈 / 発育期サッカー選手

Outline of Final Research Achievements

Many adolescent athletes experience low back pain (LBP). Its causative factors include lumbopelvic rhythm [LPR]. We assessed the presence/absence of LBP in adolescent soccer players before and after a six-month period and divided them into four groups: no LBP both before and after the period (NBP); LBP before but not after (PN); LBP after but not before (NP); and LBP both before and after (LBP). We used a 3D motion analysis system during trunk extension to measure the lumbar spine and hip ranges of motion (ROMs). On comparing the results obtained before and after the six-month period, lumbar spine ROM decreased in the NP group, hip ROM increased in the LBP group. The NP group extended their lumbar spine excessively compared with the hip before the period, which could cause LBP, but decreased the extension after the period. Lumbar extension relative to hip extension decreased in the PN group, which could decrease excessive load on the lumbar spine and eliminate LBP.

Free Research Field

スポーツ医科学、リハビリテーション医学