文化大學機構典藏 CCUR:Item 987654321/21087
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    題名: Functional Isokinetic Strength Ratios in Baseball Players With Injured Elbows
    作者: Lin, YC (Lin, Yin-Chou)1
    Thompson, A (Thompson, Angela)2
    Kung, JT (Kung, Jung-Tang)3
    Chieh, LW (Chieh, Liang-Wei)1
    Chou, SW (Chou, Shih-Wei)1
    Lin, JC (Lin, Jung-Charng)4
    貢獻者: 運教所
    關鍵詞: triceps
    biceps
    concentric
    eccentric
    日期: 2010-02
    上傳時間: 2011-12-15 13:04:58 (UTC+8)
    摘要: Context: Elbow injuries are widely reported among baseball players. The elbow is susceptible to injury when elbow-flexor and -extensor forces are imbalanced during pitching or throwing. Assessment of muscle-strength ratios may prove useful for diagnosing elbow injury. Objective: The purpose of this study was to assess the relationship between the elbow-flexor and -extensor functional isokinetic ratios and elbow injury in baseball players. Design: Retrospective study. Setting: Biomechanics laboratory. Participants: College baseball players with (n = 9) and without (n = 12) self-reported elbow pain or loss of strength were recruited. Intervention and Main Outcome Measures: Trials were conducted using a dynamometer to assess dominant-arm flexor and extensor concentric and eccentric strength at angular velocities of 60 degrees and 240 degrees/s. Functional isokinetic ratios were calculated and compared between groups. Results: Regression analysis revealed that a ratio of biceps concentric to triceps concentric strength greater than 0.76 (the median value) significantly predicted elbow injury (P = .01, odds ratio of injury = 24). No other ratios or variables (including position played) were predictive of injury status. Conclusions: These findings suggest that the ratio of biceps concentric to triceps concentric functional strength strongly predicts elbow-injury status in baseball players. Assessment of this ratio may prove useful in a practical setting for training purposes and both injury diagnosis and rehabilitation.
    顯示於類別:[運動教練研究所] 期刊論文

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