Effect of Shoulder Flexion on Grip Strength Measurement
Methods: Grip strength in 5 different position of shoulder flexion with elbow extension was measure with the help of Jamar dynamometer.
Data analysis: Repeated measure ANOVA and post hoc analysis was done (α=5%, p=.05).
Results: The mean grip strength in 0° flexion (64.6±2.86 lb/inch2), 45° flexion (63.82±2.92 lb/inch2), 90° flexion (66.86±3.06 lb/inch2), 135° flexion (66.17±3.05 lb/inch2) and 180° flexion (67.82±2.92 lb/ inch2). Repeated measure ANOVA showed significant differences for grip strength in 5 positions (p=.0001). Post hoc comparison by bonferroni showed that there is significant difference between 0° versus 180° (p=.048), 45° versus 90° (p=.0001), 45° versus 180° (p=.0001).
Conclusion: The study concluded that shoulder has an effect on grip strength and maximum grip strength can be obtained in 180° of shoulder flexion with elbow extension
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