Preferential strengthening of VMO muscle during selected biomechanical rehabilitative exercises of automotive workers with patellofemoral pain syndrome

Work : a Journal of Prevention, Assessment, and Rehabilitation
Greesh Kumar Singh, Sanjay Srivastava

Abstract

Automotive workers are engaged in occupational activities like engine tune-ups, oil changes, tire rotation, wheel balancing, replacing filters etc. These activities involve prolonged sitting, awkward postures, squatting and kneeling, which are known risk factors to cause patellofemoral pain syndrome (PFPS). This paper aims to investigate the effects of selected biomechanical rehabilitative exercises (BRE) on integrated electromyography (iEMG) activity of vastus medialis oblique (VMO) and vastus lateralis (VL) muscles so as to identify suitable ones to alleviate PFPS of automotive workers. Eleven subjects, automotive workers having PFPS, performed four BRE: (1) short arc quad with neutral hip position (SAQN), (2) short arc quad with externally rotated hip position (SAQER), (3) medial tibial rotation (MTR), and (4) hip adduction (HA). Mean iEMG activity of VMO muscle is more than that of VL muscle during all BRE. However, one way ANOVA with repeated measures indicates that mean iEMG activity of VMO muscle is significantly higher than that of VL muscle during SAQER only. VMO/VL ratio is not significantly different across the four BRE. Results suggest a range of options for choosing appropriate BRE for treating automotive workers w...Continue Reading

References

May 10, 2005·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Kelly Rafael Ribeiro CoqueiroVanessa Monteiro-Pedro
Jan 1, 1985·The Journal of Orthopaedic and Sports Physical Therapy·B BrownsteinR E Mangine
Jan 23, 2014·Work : a Journal of Prevention, Assessment, and Rehabilitation·John M Mayer, James L Nuzzo
Sep 28, 2015·Work : a Journal of Prevention, Assessment, and Rehabilitation·Ayşegül Koç
Jul 25, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Greesh Kumar SinghShellyka Ratnakar

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Citations

Dec 24, 2019·Work : a Journal of Prevention, Assessment, and Rehabilitation·Mukesh Kumar, Sanjay Srivastava
Apr 13, 2018·International Journal of Occupational Safety and Ergonomics : JOSE·Greesh Kumar Singh, Sanjay Srivastava
Jul 17, 2018·Journal of Back and Musculoskeletal Rehabilitation·Mukesh KumarV Soami Das
Jul 25, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Greesh Kumar SinghShellyka Ratnakar

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