Indian Journal of Physiotherapy and Occupational Therapy - An International Journal
  • Year: 2014
  • Volume: 8
  • Issue: 1

Efficacy of Hand Grip Strength on Supraspinatus Muscle Activity in Patients with Shoulder Impingement Syndrome

1Lecturer of Physical Therapy for Musculoskeletal Disorder and its Surgery, Faculty of Physical Therapy, Cairo University

2Professor of Rheumatology and Rehabilitation, Faculty of Medicine, Zagazig University

Online published on 23 January, 2014.

Abstract

To assess the effect of applying of 50% of maximum voluntary contraction of hand grip strength on the EMG activity of the supraspinatus muscle in patients with shoulder impingement syndrome.

Pretest-post test study.

Out-patient clinic, Faculty of Medicine, Zagazig University.

Thirty patients participated in this study. Their age ranged from 25 to 40 years.

EMG activity of supraspinatus muscle was assessed without and with applying 50% of maximum voluntary contraction (MVC) of the hand grip in 30, 60 and 90 degrees of shoulder abduction.

A Significant positive differences were found between the amplitudes of the supraspinatus activity without and with gripping in 30°, 60° and 90° degrees of shoulder abduction indicating that hand gripping resulted in an increase in the muscle activity with p<0.0001.

Applying of 50% MVC of hand grip strength could increase the activity of the supraspinatus muscle in patients with shoulder impingement syndrome. This could help in the rehabilitation strategies for such patients.

Keywords

Subacromial Impingement Syndrome, Electromyographic Activity, Supraspinatus Muscle