トレッドミル上におけるランニングの速度増加に伴う骨盤挙動の変容

• 太田 和希

  筑波大学大学院人間総合科学研究科

• 九鬼 靖太

  大阪経済大学人間科学部

• 奥平 柾道

  筑波大学大学院人間総合科学研究科

• 吉田 拓矢

  筑波大学体育系

• 前村 公彦

  筑波大学体育系

• 谷川 聡

  筑波大学体育系

書誌事項

タイトル別名

• Changes in the pelvis movement with increasing running speed on a treadmill

抄録

    This study aimed to clarify the step variables and three-dimensional joint kinematics of the pelvis while increasing running speed on a treadmill. Sixteen male track and field athletes ran on an instrumented treadmill at three different running speeds: 4.0, 6.0, and 8.0 m/s. The step variables, such as step frequency, step length, contact time, and flight time, and the kinematic data of each running speed were recorded using a high-speed video camera (300 fps) and a Vicon T20 system (250 Hz). In addition, the pelvic angular displacement (Δ) was calculated by subtracting the minimum from the maximum values of the pelvic angle in the stance phase. The results were as follows: (1) Stride length and step frequency were significantly greater at higher running speeds. Although contact time was significantly shorter at the faster speeds, flight time was significantly shorter when transitioning from 6.0 to 8.0 m/s and from 4.0 to 8.0 m/s. (2) The pelvis of the swing leg side elevated from toe off to early half of swing phase with increasing running speeds. In addition, the pelvis of the stance leg side rotated to the swing leg side from mid stance phase to toe off with increasing running speeds. (3) Δelevation showed a significant negative correlation with step frequency but a significant positive correlation with stride length for each running speed. In addition, Δrotation showed a significant positive correlation with step frequency but a significant negative correlation with stride length at 8.0 m/s. <BR>    Therefore, increased pelvic elevation improves the stride when transitioning from a low to high speed, and increased pelvic rotation leads to a higher step frequency during the stance phase when running at 8.0 m/s. In addition, it was suggested that it is necessary to run at minimum 8.0 m/s for the pelvis to behave differently compared with running at slower speeds to learn the high speed running movement.

収録刊行物

• コーチング学研究

  コーチング学研究 33 (2), 145-159, 2020-03-20

  日本コーチング学会

キーワード

• 速度増加
• 三次元
• ステップ変数
• 骨盤

詳細情報

• CRID: 1390003825186573696
• NII論文ID: 130007853870
• DOI: 10.24776/jcoaching.33.2_145
• ISSN: 24340510
• ISSN: 21851646
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可