著者

濵道 健 吉田 京平 富沢 恭子 森山 進一郎

出版者

日本体育測定評価学会

雑誌

体育測定評価研究 (ISSN:13471309)

巻号頁・発行日

pp.jjtehpe.HPM202303, (Released:2023-05-11)

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This study investigated immediate effect of resisted sled sprint (RSS) running on sprint performance. Eleven male sprinters and three male decathletes (height, 1.75 ± 0.05 m; weight, 67.4 ± 5.9 kg; age, 21.1 ± 1.1 years; best record of 100 m sprint, 10.91 ± 0.24 sec) participated. After a warm-up which was left to the participants’ discretion, a 30-m sprint (three-point start) was performed. Fifteen minutes later, they performed another RSS. Subsequently, after 8–12 min of rest, they performed 30-m sprint for the second time. The loads were 20%, 50%, and 80% of body mass (BM). This experiment was performed for three consecutive days with different loads. The average sprint speed, step frequency, and step length in the 30-m sprints before and after RSS, and the sprint speed, step frequency, step length, support time, and flight time in the 0–2 step phase were analyzed and compared. Results showed a significant main effect of time factor on average sprint speed in the 30-m sprints before and after RSS. Average step length in 30-m sprints was significantly increased at 80%BM. Sprint speed and step length in the 0–2 step phase significantly increased at 80%BM. These findings indicate that RSS immediately improves sprint performance.