Effects of the orientation of the maximum torque point with a Q-Ring™ non-circular chainring system on the BMX cycling sprint performance
Introduction: The aim of this study was to observe the differences between the Q-Ring non-circular chainring system optimum chainring position (OCP) torque settings on the initial sprint of the BMX race.
Synthesis of the facts: The results showed statistically significant differences for Vmean between NQ and OCP-3 and 4 (P ? 0.04). Results that are a percentage improvement between NQ and OCP-3 and 4 of 1.59 and 2.02% respectively, and a greater distance for the same time of 0.35 and 0.44 m, respectively.
Conclusions: The main conclusions of this study are that the Q-Ring non-circular pedaling system is able to improve performance, and that this improvement is greater when the torque delivery is positioned in the OCP-3 and 4 points.
© Copyright 2012 Science & Sports. Elsevier. All rights reserved.
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| Notations: | endurance sports technical and natural sciences |
| Published in: | Science & Sports |
| Language: | English |
| Published: |
2012
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| Online Access: | http://doi.org/10.1016/j.scispo.2012.03.002 |
| Volume: | 27 |
| Issue: | 3 |
| Pages: | e15-e19 |
| Document types: | article |
| Level: | advanced |