Korean Journal of Applied Biomechanics (한국운동역학회지)
- Volume 15 Issue 4
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- Pages.75-83
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- 2005
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- 1226-2226(pISSN)
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- 2093-9752(eISSN)
DOI QR Code
Kinematic characteristics of the ankle joint and RPM during the supra maximal training in cycling
사이클링 초최대운동(Supra maximal training)시 RPM과 족관절의 운동학적 분석
- Lee, Yong-Woo (Korea National Sport University)
- 이용우 (한국체육대학교)
- Received : 2005.10.30
- Accepted : 2005.12.07
- Published : 2005.12.31
Abstract
The purpose of this study was to determine the kinematic characteristics of the ankle joint and RPM(repetition per minutes) during the supra maximal training in cycling. For this study, 8 national representative cyclists, distance cyclists in track and road, were selected. During the super-maximum pedalling, kinematic data were collected using a six-camera(240Hz) Qualisys system. the room coordinate system was right-handed and fixed in the back of a roller for cycle, with right-handed orthogonal segment coordinate systems defined for the leg and foot. Lateral kinematic data were recorded at least for 3 minutes while the participants pedal on a roller. Two-dimensional Cartesian coordinates for each marker were determined at the time of recording using a nonlinear transformation technique. Coordinate data were low-pass filtered using a fourth-order Butterworth recursive filter with cutoff frequency of 15Hz. Variables analyzed in this study were compared using a one factor(time) ANOVA with repeated measures. The results of investigation suggest that the number of rotating pedal was decreased with time phase during the super-maximum pedaling. Maximum angle of the ankle joint showed little in change with time phase compared with minimum angle of that.