Faculty of Health and Sports Science, Doshisha University, Kyotanabe, Japan.
Department of Nutritional Science, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
J Strength Cond Res. 2019 Jun;33(6):1580-1588. doi: 10.1519/JSC.0000000000002024.
Watanabe, Y, Yamada, Y, Yoshida, T, Matsui, T, Seo, K, Azuma, Y, Hiramoto, M, Miura, Y, Fukushima, H, Shimazu, A, Eto, T, Saotome, H, Kida, N, and Morihara, T. Relationship between physical fitness at the end of preseason and the inseason game performance in Japanese female professional baseball players. J Strength Cond Res 33(6): 1580-1588, 2019-This study examined anthropometric and fitness profiles of Japanese female professional baseball players and investigated the relationship between players' physical fitness and inseason game performance. Fifty-seven players who were registered in the Japan Women's Baseball League (JWBL) participated. Height, body mass, grip strength, back strength, knee extension and flexion strength, hamstring extensibility, vertical jump height, and horizontal jump distance were measured at preseason (February and March) in 2013. Game performance during the 2013 season (March-November) was obtained from official JWBL statistics. Vertical jump height showed significant positive correlations with individual performance records (e.g., total bases [r = 0.551], slugging percentage [r = 0.459], and stolen bases [r = 0.442]). Similar relationships were observed between horizontal jump distance and performance statistics in most cases. By contrast, grip, back, and lower-limb strength, as well as hamstring extensibility were not significantly correlated with game performance. Stepwise regression analysis selected vertical jump height as an independent variable, significantly correlating with several game performance measures (e.g., total bases: adjusted R = 0.257). Also, vertical jump height and body mass index were identified as independent variables significantly associated with stolen bases (adjusted R = 0.251). Maximal jump performance, rather than simple isometric muscle strength or flexibility, is a good performance test that can be used at the end of preseason to predict inseason batting and stolen base performance. Our findings demonstrate the importance of constructing preseason training programs to enhance lower-limb muscular power that is linked to successful inseason performance in female baseball players.
渡边、山田、吉田、松井、清、安藤、广田、见方、江口、齐藤、喜多、森原。日本职业女子棒球队员赛季前体能与赛季中比赛表现的关系。《体质研究杂志》33(6)：1580-1588，2019 年——本研究调查了日本职业女子棒球队员的人体测量和体能特征，并研究了运动员体能与赛季中比赛表现的关系。2013 年 2 月和 3 月，日本女子棒球联盟（JWBL）的 57 名注册球员参加了赛季前体能测试。2013 赛季（3 月至 11 月）的比赛表现数据来自 JWBL 的官方统计。垂直跳跃高度与个人表现记录呈显著正相关（例如，总垒数[r=0.551]、本垒打率[r=0.459]和盗垒[r=0.442]）。在大多数情况下，水平跳跃距离与表现统计数据也存在类似的关系。相比之下，握力、背部和下肢力量以及腿筋伸展性与比赛表现没有显著相关性。逐步回归分析选择垂直跳跃高度作为独立变量，与多个比赛表现指标显著相关（例如，总垒数：调整后的 R=0.257）。此外，垂直跳跃高度和体重指数被确定为与盗垒显著相关的独立变量（调整后的 R=0.251）。最大跳跃性能而不是简单的等长肌肉力量或柔韧性是一种很好的性能测试，可以在赛季前结束时使用，以预测赛季中的击球和盗垒表现。我们的研究结果表明，构建赛季前训练计划的重要性，以增强与女子棒球运动员赛季中成功表现相关的下肢肌肉力量。
