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Variation of Lower-Limb Muscle Activation Asymmetry in Step Incremental and Constant-Power Pedaling Exercise

Seyed Hamidreza Heidary1, Reza Ahmadi1, Shahram Rasoulian2

  • 1Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB T2N1N4, Canada.

Sensors (Basel, Switzerland)
|January 28, 2026
PubMed
Summary

Neuromuscular asymmetry in cycling, measured by the Normalized Symmetry Index (NSI), decreases with increasing intensity during incremental cycling tests. Constant power cycling showed no change in muscle activation asymmetry.

Keywords:
asymmetrycycling biomechanicsexercise intensitymuscle activitynormalized symmetry index

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