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ID 44794
file
title alternative
The Effect of the Difference in Time Length of Consciousness Keeping the Lean Position in the Acceleration Phase of 100m Sprint on Forward Angle, Running Velocity, Stride Frequency, and Stride Length
creator
Adachi, Tatsuya
subject
lean position
forward angle
acceleration phase
100m sprint
running velocity
前傾姿勢
前傾角度
加速局面
100m走
疾走速度
NDC
Sports and physical training
abstract
The purpose of this study was to clarify the effect of the differences in time length of consciousness keeping the lean position in the acceleration phase of 100 m sprint on running velocity, stride frequency, and stride length. In this study, nine male collegiate sprinters ran 100 m sprint with three acceleration methods. The first method is the acceleration keeping their lean positions consciously during normal time (Normal Method: NM). The second and the third methods is the acceleration keeping their lean positions consciously during shorter and longer times than NM respectively (Shorter Method: SM, Longer Method: LM). Experimental trials were recorded by four high-speed cameras (300 fps) and one digital video camera (30fps). Forward angle, running velocity, stride frequency, and stride length in the acceleration phase and 0 m―100 m running velocity, stride frequency, and stride length were calculated. The results were as follows: 1) Forward angle of SM was smaller and forward angle of LM was larger at the 5 m, 10 m, 20 m, and 30 m. 2) 0 m―30 m, and 0 m―40 m running speed with LM were higher than that of SM. 3) There were no differences in stride frequency and stride length among the three acceleration methods. These results indicated that the differences in time length of consciousness keeping the lean position changed movement of the lean position in the acceleration phase, and as the result, the change affected running velocity.
journal title
Bulletin of the Graduate School of Education, Hiroshima University. Part. II, Arts and science education
issue
Issue 66
start page
195
end page
201
date of issued
2017-12-22
publisher
広島大学大学院教育学研究科
issn
1346-5554
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
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