Effects of strength training on the biomechanics and coordination of short-term maximal cycling

Burnie, Louise, Barratt, Paul, Davids, Keith, Worsfold, Paul and Wheat, Jonathan Stephen (2022) Effects of strength training on the biomechanics and coordination of short-term maximal cycling. Journal of Sports Sciences. pp. 1-10. ISSN 0264-0414 (In Press)

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Official URL: https://doi.org/10.1080/02640414.2022.2080159

Abstract

The aim was to investigate the effects of a gym-based strength training intervention on biomechanics and intermuscular coordination patterns during short-term maximal cycling. Twelve track sprint cyclists performed 3 × 4 s seated sprints at 135 rpm, interspersed with 2 × 4 s seated sprints at 60 rpm on an isokinetic ergometer, repeating the session 11.6 ± 1.4 weeks later following a training programme that included two gym-based strength training sessions per week. Joint moments were calculated via inverse dynamics, using pedal forces and limb kinematics. EMG activity was measured for 9 lower limb muscles. Track cyclists ‘leg strength” increased (7.6 ± 11.9 kg, P = 0.050 and ES = 0.26) following the strength training intervention. This was accompanied by a significant increase in crank power over a complete revolution for sprints at 135 rpm (26.5 ± 36.2 W, P = 0.028 and ES = 0.29). The increase in leg strength and average crank power was associated with a change in biceps femoris muscle activity, indicating that the riders successfully adapted their intermuscular coordination patterns to accommodate the changes in personal constraints to increase crank power.

Item Type: Article
Uncontrolled Keywords: EMG, joint powers, maximal power, resistance training, sprint cycling, vector coding
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Elena Carlaw
Date Deposited: 08 Jul 2022 11:03
Last Modified: 08 Jul 2022 11:15
URI: http://nrl.northumbria.ac.uk/id/eprint/49518

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