Measuring power hand grip strength in a sample of students aged 19-36 in Urmia

Power and pinch hand grip strengths are major clinical and ergonomic parameters contributing to the
hand muscle power. The data on hand grip strength measurements can have many benefits, including application in the
design of hand tools. The present study was conducted to measure power hand grip strength among male and female
students aged 19 to 36 using a Jamar Dynamometer and to compare their measurement data with the data obtained
from other groups of the population.
Materials and Methods: The present cross sectional study was conducted on 234 male and female students aged 19-
36 in Urmia University of Medical Sciences. Hand grip strength was measured using Jamar hand dynamometer and
according to the Southampton protocol for adult grip strength measurement.
Results: The mean (±standard deviation of) hand grip strength calculated was 44.39 (±9.71) in the male students 20.48
(±5.86) in the female students. A high correlation was observed between the power hand grip strength in the left and
right hands (r=0.94 and P<0.001) and a significant difference then between the power hand grip strength in the
dominant and non-dominant hands.
Conclusion: The findings of the present study and similar studies about power hand grip strength in the Iranian
population can be used by ergonomists and manufacturers to improve the design of hand tools and the performance of
tasks requiring hand muscle power