Babar Bashir, Arooj Ashfaq, Maryam Altaf.
The Effect of Shoulder Position on Hand Grip Strength among University Students.
Pak J Physical Therapy Jan ;1(1):19-23.

Highlights: Shoulder position affect the hand grip strength There is a statistically significant difference present between hand grip strength measurements of both the genders. There is strong positive correlation present between most of the shoulder movements. Abstract: Hand grip-strength evaluation is an important variable for assessment of upper extremity deformities. Many studies have observed hand grip-strength in different positions and postures but no importance on further resulting positions that are being utilized in our clinical setups. Objective: To evaluate the effect of shoulder position on hand grip strength among university students. Methodology: 42 (22 males, 20 females) physically healthy and active individuals 22.76 +- 1.96 years old were involved in this study. Study design was cross sectional. Hand grip-strength (kg) using hand grip dynamometer (Jamar dynamometer) was measured in three different positions of shoulder joint after obtaining informed consent. Participants were requested to carry out five seconds maximum contractions in each position. Position of wrist was kept neutral i.e. 0+- Participants were requested to stand with wider base and to increase further stability they were made to stand with the wall behind them. Both right and left hands were tested three times in every position. At the end average was calculated from 3 values and 60 seconds rest interval was also given to the participants. Results: Participants with no previous history of showed that mean right neutral shoulder rotation value of male participants was 77.18 +- 19.23 whereas mean right neutral shoulder rotation value of female participants was 20.20 +- 7.34 kilograms where p-value is <0.001 which showed the presence of statistically significant difference between both the genders. Pearson correlation stated that very strong positive correlation (r= 0.960) was present between right neutral shoulder rotation and 90+- shoulder abduction in males. Conclusions: Shoulder positions affect hand grip strength. There is significant difference present between both the genders and presence of positive correlation has been recorded in shoulder positions which states that shoulder positions affect hand grip strength. .

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