Diminished sub-maximal quadriceps force control in anterior cruciate ligament reconstructed patients is related to quadriceps and hamstring muscle dyskinesia

S Telianidis; L Perraton; Ross Clark; Y H Pua; K Fortin; A L Bryant

doi:10.1016/j.jelekin.2014.04.014

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Diminished sub-maximal quadriceps force control in anterior cruciate ligament reconstructed patients is related to quadriceps and hamstring muscle dyskinesia

Journal article

Peer reviewed

Diminished sub-maximal quadriceps force control in anterior cruciate ligament reconstructed patients is related to quadriceps and hamstring muscle dyskinesia

S Telianidis, L Perraton, Ross Clark, Y H Pua, K Fortin and A L Bryant

Journal of Electromyography and Kinesiology, Vol.24(4), pp.513-519

2014

DOI: https://doi.org/10.1016/j.jelekin.2014.04.014

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Abstract

force control

ACL reconstruction

muscle activation

quadriceps

hamstrings

The aim of this study was to determine the effects of anterior cruciate ligament reconstruction (ACLR) on sub-maximal quadriceps force control with respect to quadriceps and hamstring muscle activity. Thirty ACLR individuals together with 30 healthy individuals participated. With real-time visual feedback of muscle force output and electromyographic electrodes attached to the quadriceps and hamstring muscles, subjects performed an isometric knee extension task where they increased and decreased their muscle force output at 0.128. Hz within a range of 5-30% maximum voluntary capacity. The ACLR group completed the task with more error and increased medial hamstring and vastus medialis activation (. p<. 0.05). Moderate negative correlations (. p<. 0.05) were observed between quadriceps force control and medial (Spearman's rho. =. -0.448, p=. 0.022) and lateral (Spearman's rho. =. -0.401, p=. 0.034) hamstring activation in the ACLR group. Diminished quadriceps sub-maximal force control in ACLR subjects was reflective of medial quadriceps and hamstring dyskinesia (i.e., altered muscle activity patterns and coordination deficits). Within the ACLR group however, augmented hamstring co-activation was associated with better quadriceps force control. Future studies should explore the convergent validity of quadriceps force control in ACLR patients. © 2014 Elsevier Ltd.

Details

Title: Diminished sub-maximal quadriceps force control in anterior cruciate ligament reconstructed patients is related to quadriceps and hamstring muscle dyskinesia
Authors: S Telianidis (Author) - University of Melbourne
L Perraton (Author) - University of Melbourne
Ross Clark (Author) - Australian Catholic University
Y H Pua (Author) - Singapore General Hospital, Singapore
K Fortin (Author) - University of Melbourne
A L Bryant (Author) - University of Melbourne
Publication details: Journal of Electromyography and Kinesiology, Vol.24(4), pp.513-519
Publisher: Elsevier Ltd.
Date published: 2014
DOI: 10.1016/j.jelekin.2014.04.014
ISSN: 1050-6411
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: 99450703602621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Neurosciences; Physiology; Rehabilitation; Sport Sciences