Int J Sports Med 2019; 40(11): 704-710
DOI: 10.1055/a-0970-5564
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Plyometric-based Training for Isokinetic Knee Strength and Jump Performance in Cricket Fast Bowlers

Sai Aditya Krishna
1   Arthroscopy & Sports Medicine, Centre for Sports Science, Sri Ramachandra Institute of Higher Education & Research (Deemed University), Chennai, India
,
Thiagarjan Keddin Alwar
1   Arthroscopy & Sports Medicine, Centre for Sports Science, Sri Ramachandra Institute of Higher Education & Research (Deemed University), Chennai, India
,
Sandile Sibeko
1   Arthroscopy & Sports Medicine, Centre for Sports Science, Sri Ramachandra Institute of Higher Education & Research (Deemed University), Chennai, India
,
Shivani Ranjit
1   Arthroscopy & Sports Medicine, Centre for Sports Science, Sri Ramachandra Institute of Higher Education & Research (Deemed University), Chennai, India
,
Arumugam Sivaraman
1   Arthroscopy & Sports Medicine, Centre for Sports Science, Sri Ramachandra Institute of Higher Education & Research (Deemed University), Chennai, India
› Author Affiliations
Further Information

Publication History



accepted 05 July 2019

Publication Date:
12 August 2019 (online)

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Abstract

Competitive cricket demands a high level of performance from fast bowlers. Ground reaction forces during the landing phase pose a risk for lower limb and lumbar spine injury. Good dynamic knee strength allows the knee to flex to absorb these forces and extend prior to ball release for maximum efficiency. Plyometric training has been shown to improve dynamic strength. There is a lack of literature on this subject for cricket. This study evaluated the effect of a combined plyometric and strength training program on isokinetic knee strength of fast bowlers. Forty-two professional fast bowlers were randomly assigned to a training group (n=21) and a control group (n=21). Both groups underwent isokinetic knee strength and vertical and standing broad-jump testing. Quadriceps and hamstring concentric and eccentric peak torques, bilateral strength asymmetries (BSAs), and dynamic control ratios (DCRs) were evaluated by isokinetic testing. The study group underwent 12 weeks of plyometric training, whereas the control group continued with their own training methods. The study group showed a significant improvement (p<0.05) in jump performance and eccentric strength. There was a reduction in the proportion of bowlers with poor BSA and DCR. Improving dynamic knee strength through plyometric training reduces injury risk and improves performance in cricket fast bowlers.