Influence of Initial Crank Positions and Jaw Clenching Activity on Cycling Performance

Abstract

The purpose of this study was to identify the effects of three initial crank positions and jaw clenching activities on seated cycling performance. 10 normal subjects (5 females, 5 males) completed six separate occasions of Wingate Test with three different initial crank positions (0°, 47°, 71°) and two modes of jaw activities (jaw clenching and jaw loose). The findings suggest that, crank angle of 71° has the highest power output compare to other angles. The combination of 71° crank angles and jaw loose the jaw shows the best cycling performance.