Biomedical Science and Engineering
ISSN (Print): 2373-1257 ISSN (Online): 2373-1265 Website: http://www.sciepub.com/journal/bse Editor-in-chief: Apply for this position
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Biomedical Science and Engineering. 2016, 4(2), 31-36
DOI: 10.12691/bse-4-2-1
Open AccessArticle

Significance of Bilateral Coactivation Ratio for Analysis of Neuromuscular Fatigue of Selected Knee Extensor Muscles during Isometric Contractions at 0º in Sportspersons

Sanjeev Nara1, Manvinder Kaur1, Dhananjoy Shaw2 and Dinesh Bhatia3,

1Department of Biomedical Engineering, Deenbandhu Chhotu Ram University of Science & Technology, Haryana, India

2Indira Gandhi Institute of Physical Education and Sports Sciences, University of Delhi, Delhi, India

3Biomedical Engineering Department, North Eastern Hill University Shillong, India

Pub. Date: October 28, 2016

Cite this paper:
Sanjeev Nara, Manvinder Kaur, Dhananjoy Shaw and Dinesh Bhatia. Significance of Bilateral Coactivation Ratio for Analysis of Neuromuscular Fatigue of Selected Knee Extensor Muscles during Isometric Contractions at 0º in Sportspersons. Biomedical Science and Engineering. 2016; 4(2):31-36. doi: 10.12691/bse-4-2-1

Abstract

Muscle coactivation is the activation of two or more muscles simultaneously around a joint. Coactivation of knee muscles especially quadriceps is considered to be an important phenomenon for the stabilization of patellofemoral joint. The purpose of this study was to investigate the Coactivation ratio of selected knee extensor muscles as measure of neuromuscular fatigue in relation to gender, performance and side (right and left) of male (n1=19) and female (n2=8) during isometric contraction. The isometric contraction consisted of performing knee extension with an angle between 0º to 10º with a load of 30 repetition maximum (RM) on the CYBEX exerciser. The statistical analysis applied were ANOVA with post hoc analysis to determine the influence of fatigue in terms of gender, performance and side (right and left). The results showed significant decrease in the coactivation ratio of the selected muscles pair during isometric contraction with progression of fatigue (time). It also showed male dominance behavior over females in coactivation of Vastus Medialis (VM) and Vastus Lateralis (VL) muscles.. The results of this study would help to better understand the changes in activation strategies that can provide valuable information regarding the mechanisms that alter neuromuscular activity.

Keywords:
coactivation ratio fatigue gender isometric bilateral

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References:

[1]  Falconer, K. & Winter, D.A. (1985).Quantitative assessment of co-contraction at the ankle joint in walking. Electromyogr Clin Neurophysiol., 25 (2-3), 135-149.
 
[2]  Lloyd, D.G. & Buchanan, T.S. (2001).Strategies of muscular support of varus and valgus isometric loads at the human knee. J Biomech., 34(10), 1257-1267.
 
[3]  Sakurai, T., Toda, M., Sakurazawa, S., Akita, J., Kondo, K. and Nakamura, Y. (2010). Detection of Muscle Fatigue by the Surface Electromyogram and its Application. 9th IEEE/ACIS International Conference on Computer and Information Science, 43-47.
 
[4]  Missenard, O., Mottet, D. & Perrey, S. (2008). The role of co-contraction in the impairment of movement accuracy with fatigue. Experimental Brain Research, 185(1), 151-156.
 
[5]  Semmler, J.G., Ebert, S.A. & Amarasena, J. (2013). Eccentric muscle damage increases intermuscular coherence during a fatiguing isometric contraction. Actaphysiologica, 208(1), 716-725.
 
[6]  Silva, C.R. et al. (2014). Influence of neuromuscular fatigue on co-contraction between vastus medialis and vastus lateralis during isometric contractions. Kinesiology, 46(2), 179-185.
 
[7]  Rainoldi, A., et al. (2008). Mechanical and EMG Responses of Vastus lateralis and changes in biochemical variables to isokinetic exercise in endurance and power athletes. J Sports Sci., 26(3), 321-331.
 
[8]  Marson, R.A. (2011). Study of muscular fatigue by EMG analysis during isometric exercise. Biosignals and Biorobotics Conference (BRC), 1-4.
 
[9]  Choi, H. (2003). Quantitative assessment of co-contraction in cervical musculature. Medical Engineering & Physics, 25(2), 133-140.
 
[10]  Heiden, T.L., Lloyd, D.G. & Ackland, T.R. (2009). Knee joint kinematics, kinetics and muscle co-contraction in knee osteoarthritis patient gait. Clinical Biomechanics, 24(10), 833-841.
 
[11]  Konard, P. (2005). The ABC of EMG: A Practical Introduction to Kinesiological Electromyography. Noraxon Inc. USA, version 1.0.
 
[12]  Shaw, D. (2000). Encyclopeadia of Sports Injuries and Indian Sports Persons. K.S.K. Publishers & Distributors.
 
[13]  Winter, D. (2009). Biomechanics and motor control of human movement. New Jersey: John Wiley & Sons, 4th Ed.
 
[14]  Begalle, R.L., Distefano, L.J., Blackburn, T. & Padua, D.A. (2012). Quadriceps and hamstrings coactivation during common therapeutic exercises. J Athl Train., 47(4), 396-405.