BRAKING FORCES DURING BICYCLE PEDALING: AN EXAMINATION OF THE FULL CRANK ROTATION

Authors

Yuta Yamaguchi, Nippon Sports Science UniversityFollow
Kohei Watanabe, School of International Liberal Studies, Chukyo UniversityFollow
Kenji Oishi, Nippon Sports Science UniversityFollow
Wataru Fukuda, Yokohama sports medical centerFollow
Tetsunari Nishiyama, Nippon Sports Science UniversityFollow

Category

Other

Document Type

Paper

Abstract

Pedalling skills are evaluated using angular impluse of negative crank torque (I_NCT) that occurs in pulling phase (180-360° of crank rotation that 0° is top dead center. I_NCT has the effect of inhibit crank rotation (“braking force“). The aim of study was to obtain findings to reduce I_NCT for improving cyclists' pedalling skills. We examined the relationship between I_NCT and kinetic pedalling data through the full crank rotation. Fifteen male cyclists performed constant pedalling at 80%Vo₂max and 90rpm. Kinetic and kinematic pedalling data were measured by the pedal-shaped force platform (KISTLER) and by a 3D motion capture system (VICON). A negative correlation was indicated 80-250° of crank rotation between horizontal pedal force (Fh) and I_NCT (pNCT occurring in pulling phase was affected by amount of Fh in pushing phase.

Recommended Citation

Yamaguchi, Yuta; Watanabe, Kohei; Oishi, Kenji; Fukuda, Wataru; and Nishiyama, Tetsunari (2018) "BRAKING FORCES DURING BICYCLE PEDALING: AN EXAMINATION OF THE FULL CRANK ROTATION," ISBS Proceedings Archive: Vol. 36: Iss. 1, Article 169.
Available at: https://commons.nmu.edu/isbs/vol36/iss1/169