著者

西守 隆 浦田 達也

出版者

理学療法科学学会

雑誌

理学療法科学 (ISSN:13411667)

巻号頁・発行日

vol.35, no.6, pp.893-898, 2020 (Released:2020-12-19)

参考文献数

11

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〔目的〕健常者において起き上がり動作中の起き上がり速度を変化させた際の体幹および上肢の関節角度を比較した.〔対象と方法〕健常者の至適な速度である「普通」(n=6)と,普通の平均遂行時間より2SD以上の「遅い」(n=5)の起き上がり動作をビデオカメラで撮影し,体幹および上肢関節の角度を算出した.統計には対応のないt検定を用いた.〔結果〕「遅い」起き上がり動作は,「普通」と比較して,体幹運動では体幹回旋角度が有意に大きく(p<0.05),上肢関節運動では支持側の肩関節内旋角度が有意に大きかった(p<0.05).〔結語〕健常者が「遅い」起き上がり動作を遂行する場合は,支持側の肩関節内旋角度を大きくすることで,起き上がり方向への身体全体の回転を大きくしている可能性が示唆された.

著者

新井 彩 石川 昌紀 浦田 達也 国正 陽子 佐野 加奈絵 田中 ひかる 伊藤 章

出版者

The Japanese Society of Physical Fitness and Sports Medicine

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.64, no.1, pp.165-172, 2015-02-01 (Released:2015-01-25)

参考文献数

23

被引用文献数

2 1

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The purpose of the present study was to examine the importance of the agonist muscle activity of the post-impact 30 ms phase during drop jump (DJ) for effective rebound performance by comparing those of sprint runners and swimmers. The eight sprint runners (SPRINT) and twelve swimmers (SWIM) were participated in this study. They performed DJ from a 0.3-m height box with maximal rebound efforts. Electromyograms (EMG) of the lower leg muscles (medial gastrocnemius [MG], soleus [SOL] and tibialis anterior [TA]), and vertical ground reaction force together with kinematic data were measured simultaneously during DJ. In addition, the onsets of fascicle stretching of the MG and SOL muscles were measured by using high-speed ultrasonography (521Hz) during DJ. The onsets of the fascicle stretching of SOL during DJ were not significantly different between SPRINT and SWIM (15 ± 7 ms and 16 ± 6 ms, respectively). During DJ, SPRINT showed onset of the SOL EMG before the ground contact (-26 ± 19 ms). Meanwhile, SWIM showed the onset of the SOL EMG after the ground contact of DJ (16 ± 19 ms). These results suggest that the SOL muscles for SWIM cannot be fully-activated during the braking phase. Consequently, the rate of force development during the braking phase of DJ and subsequently rebound height could be reduced in SWIM.

著者

多胡 陽介 浦田 達也 芳田 哲也

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.71, no.4, pp.305-318, 2022-08-01 (Released:2022-07-12)

参考文献数

83

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In this study, we searched the relevant literature for studies involving the number of tackles and wins/losses in a rugby match, the movement of the tackler and ball carrier, the momentum of tackles, the technique and physical fitness of tacklers, and the risk of injury in order to examine the factors contributing to a successful tackle. As a result, it was found that professional players had a higher success rate of tackles than amateur players younger than 20 years of age. However, the number of tackles per match and the relationship between the success rate of tackles and the results of the match differed depending on the competitive level and the country/region. Regarding tackle movements, the success rates of shoulder tackles were higher than those of other types of tackles. High-level players performed shoulder tackles with both shoulders and both hips facing the ball carrier (body position square), with their trunk roughly parallel to the ground. Furthermore, high-level players had a high body mass; thus, they tackled with high momentum (velocity × mass). Regarding physical fitness, high-level tackling techniques required maximum strength and power in the lower and upper limbs, and also improving the maximal aerobic capacity and overall agility may help prevent fatigue and thus positively contribute to successful tackling. This review suggested that young rugby players need to improve their tackling techniques, including adopting a posture with a straight spine and leg-drive, as the risk of concussion among novices was higher than that among experts.

著者

川端 浩一 浦田 達也 田邉 智 伊藤 章

出版者

社団法人日本体育学会

雑誌

日本体育学会大会予稿集

巻号頁・発行日

no.64, 2013-08-28

著者

川端 浩一 浦田 達也 秋山 真信 伊藤 章

出版者

社団法人日本体育学会

雑誌

日本体育学会大会予稿集

巻号頁・発行日

no.63, 2012-08-22

著者

尾関 一将 水藤 弘吏 桜井 伸二 浦田 達也

出版者

大阪体育大学

雑誌

若手研究(B)

巻号頁・発行日

2013-04-01

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競泳スタート時におけるスタート台に作用する力を手部,足部それぞれ独立して測定し,評価する方法を確立することができた.大学生以上の男子および女子競泳選手において新しいスタート台を用いたキックスタートを用いることの優位性が明らかとなった.また,女子一流競泳短距離選手のキックスタートの特徴として,高い跳び出し水平速度の獲得よりもブロックタイムを短縮するためにスタート姿勢の身体重心位置を前方向にして構えていることを報告した.これらのスタート開始時の構えにおいて,スタート構え時の前方向の脚における等尺性最大脚筋力が大きいほど,跳び出し水平速度が高く,5m通過時間が有意に短かったことが明らかとなった.