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Motor Transfer and Proactive Interference in Cycling With a Noncircular Chainring
Thomas Haab1, Peter Leinen1, Stefan Panzer1
1Sports Science Institute, Saarland University, Saarbrucken, Germany.
Motor Control
|October 24, 2023
Summary
Athletes can adapt to new cycling chainring designs, showing improved coordination and neuromuscular control when switching from circular to non-circular (NC) chainrings. Performance transfer occurred without significant negative effects on torque effectiveness or muscle cocontraction.
Area of Science:
- Sports Science
- Biomechanics
- Neurophysiology
Background:
- Athletes face performance adaptation challenges with evolving sports technology.
- Skill transfer between different equipment designs requires further investigation.
Purpose of the Study:
- To investigate the impact of mechanical changes in cycling chainring design on athletic performance.
- To analyze biomechanical and neurophysiological responses during equipment transfer.
Main Methods:
- 36 participants pedaled a cycling ergometer with circular and non-circular (NC) chainrings.
- Measured cadence variability, torque effectiveness, and electromyographic cocontraction.
- Data collected across acquisition, transfer, and retention phases.
Main Results:
- Positive transfer observed for cadence variability from circular to NC chainring.
- No significant changes in torque effectiveness or cocontraction between chainring types.
- Slightly higher cocontraction with NC chainring during retention, but minimal absolute difference.
Conclusions:
- Circular to NC chainring transfer demonstrates enhanced neuromuscular control and coordination.
- Performance transfer is task- and equipment-dependent.
- Athletes can adapt to mechanical variations in sports equipment without detrimental effects.
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