大学男子剣道選手における身体組成の特徴 : 競技レベル, 競技歴, 練習時間による検討

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This study examined the association between body composition, comprising body fat percentage and fat free mass index (FFMI), and the experience and practice time of kendo at different athletic levels. The subjects were 44 and 43 male university kendo players from X University (age 20.3 ± 1.1 years, mean ± standard deviation) and Y University (age 19.7 ± 0.7 years), respectively, belonging to the Kanto University Kendo Federation in Japan. University kendo tournament results over the preceding three years were compared. A clear difference in the Kanto University Kendo Championship results was observed between the two groups, with X University reaching the top 8 and 16 and Y University attaining the top 64. Body fat percentage and FFMI were measured using InBody770 (InBody Japan, Japan). Body weight, body water content, proteins, minerals, body fat percentage, and FFMI were measured. In addition, player practice time over the three months preceding the measurements and subject experience of kendo were surveyed and aggregated. The study found that there are no relationship between body fat percentage and FFMI of male university kendo players and their experience of kendo. This result indicates that it is necessary to investigate more systematically what factors contribute to the competitive level of kendo in the future.