Lumbar intervertebral disk degeneration in elite competitive swimmers: A case control study

Koji Kaneoka*, Ken Shimizu, Mika Hangai, Toru Okuwaki, Naotaka Mamizuka, Masataka Sakane, Naoyuki Ochiai

*この研究の対応する著者

研究成果: Article査読

54 被引用数 (Scopus)

抄録

Background: The majority of orthopaedic problems experienced by competitive swimmers are related to pain in the shoulder, low back, and knee. Three of 39 national swim team members were hampered in their performance due to lumbar disk herniation at an international competition in 2001. There has been no previous research into lumbar disk degeneration in elite competitive swimmers. Hypothesis: Excessive competitive swimming activities accelerate lumbar disk degeneration. Study Design: Case control study; Level of evidence, 3. Methods: Fifty-six elite swimmers (high-load group, 35 men and 21 women; mean age, 19.6 years) and a control group of 38 university recreational level swimmers (low-load group, 24 men and 14 women; mean age, 21.1 years) were evaluated for lumbar disk degeneration using magnetic resonance imaging. We compared the prevalence of disk degeneration and the disk level between the 2 groups and further investigated the relationship among their symptoms, swimming styles, and disk degeneration. Results: Thirty-eight (68%) elite swimmers and 11 (29%) controls had degenerated disks at various disk levels, and the prevalence was significantly greater in the elite swimmers (P =.0002). Comparison between the 2 groups of the prevalence of disk degeneration at each level revealed that the disk level of L5-S1 was significantly more frequently degenerated in the high-load group (P =.026). There was no significant relationship observed among the variables of low back pain symptoms, swimming strokes, and disk degeneration. Conclusion: Excessive competitive swimming activities might exaggerate lumbar intervertebral disk degeneration, especially in the L5-S1 intervertebral segment.

本文言語English
ページ(範囲)1341-1345
ページ数5
ジャーナルAmerican Journal of Sports Medicine
35
8
DOI
出版ステータスPublished - 2007 8月
外部発表はい

ASJC Scopus subject areas

  • 整形外科およびスポーツ医学
  • 理学療法、スポーツ療法とリハビリテーション

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