A New Approach to Measure Position Stability on the Bike in Time Trial Performance – A Pilot Study
Journal Title: Journal of Science and Cycling - Year 2016, Vol 5, Issue 2
Abstract
As air resistance is the main source of resistance on flat time trials (Martin 2006, Debraux 2011), aerodynamic analysis and optimization is an important part of the preparation. Besides wind-tunnel testing (Garcia-Lopez 2008), also tests in the velodrome using the Track Aero System (Alphamantis, Montreal, CA) are used. Here the CdA-value is calculated over several laps in real-time. However, this measurement technique does not capture changes in the rider’s position that possibly indicate instability. It is assumed that the athlete’s pelvic stability can be used as indicator for the stability with which a time trial position can be ridden, i.e. the position’s sustainability. Accordingly, this pilot study aims at analysing pelvic stability using a dynamic measure of the location of the centre of pressure (COP). This is an important parameter to quantify the pelvis’ positioning (Kraus 2015). Possible evasive movements on the saddle should be captured and quantified.
Authors and Affiliations
D Schade, A Froncioni, J Natrup
Keywords
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