The effects of eccentric hamstring strength training on dynamic jumping performance and isokinetic strength parameters: A pilot study on the implications for the prevention of hamstring injuries

Ross Clark; A Bryant; J P Culgan; B Hartley

doi:10.1016/j.ptsp.2005.02.003

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The effects of eccentric hamstring strength training on dynamic jumping performance and isokinetic strength parameters: A pilot study on the implications for the prevention of hamstring injuries

Journal article

Peer reviewed

The effects of eccentric hamstring strength training on dynamic jumping performance and isokinetic strength parameters: A pilot study on the implications for the prevention of hamstring injuries

Ross Clark, A Bryant, J P Culgan and B Hartley

Physical Therapy in Sport, Vol.6(2), pp.67-73

2005

DOI: https://doi.org/10.1016/j.ptsp.2005.02.003

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Abstract

eccentric training

hamstring injury

prevention

Objectives: Although previous research shows that the hamstring length-tension relationship during eccentric contractions plays a role in hamstring injury, training methods to promote beneficial adaptations are still unclear. The purpose of this pilot study was to determine whether an eccentric hamstring specific training programme results in favourable adaptations. Design: Eccentric training consisting of the Nordic hamstring exercise performed twice a week for four weeks. Pre- and post-training concentric/ concentric isokinetic testing of peak torque (PT) and position of peak torque (POS) was performed for both the quadriceps and hamstrings of both legs at 60° s-1. Vertical jump height was also assessed. Participants: Nine athletic, male subjects with no previous strength training experience. Results: There was a significant increase in vertical jump height (pre=51.0±4.8 cm, post=54.4±6.3 cm, p=0.04), a significant reduction in quadriceps PT (pre=204.6±21.9 N.m., post=181.5±19.9 N.m., p=0.01), a significant decrease in hamstring POS from full knee extension (pre=32.5±7.4°, post=26.2±8.6°, p=0.01) and a significant hamstring POS difference between limbs (dominant=33.8±9.5°, non-dominant=24.9±6.5°, p=0.01). Conclusion: Nordic hamstring exercise training may produce favourable neuromuscular adaptations for the possible prevention of hamstring injuries while enhancing performance in athletic, untrained males. © 2005 Elsevier Ltd. All rights reserved.

Details

Title: The effects of eccentric hamstring strength training on dynamic jumping performance and isokinetic strength parameters: A pilot study on the implications for the prevention of hamstring injuries
Authors: Ross Clark (Author) - Central Queensland University
A Bryant (Author) - Central Queensland University
J P Culgan (Author) - Central Queensland University
B Hartley (Author) - Central Queensland University
Publication details: Physical Therapy in Sport, Vol.6(2), pp.67-73
Publisher: Churchill Livingstone
Date published: 2005
DOI: 10.1016/j.ptsp.2005.02.003
ISSN: 1466-853X
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
Language: English
Record Identifier: 99450455702621
Output Type: Journal article

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Web Of Science research areas: Rehabilitation; Sport Sciences