A device for assessment of the contractile force of different groups of muscles of upper and lower limbs

Document Type : Original Article

Authors

1 Department Anatomy , Faculty of Medicine, Alexandria University

2 Department Of Health Sciences, Faculty of Physical Education for Girls, Alexandria University.

3 Department Basic Sciences, Faculty of Engineering, Pharos University in Alexandria.

4 Department Anatomy , Faculty of Medicine, Alexandria University.

Abstract

Background: There are no currently reliable devices for the appropriate calculation of the force exhibited by the muscles in different parts of the body. A device is unique in measuring the contractile force of different groups of muscles of the upper and lower limb is invented.
Aim of the work: The aim of this study was to examine of a new device for the assessment of the contractile force of different groups of muscles of upper and lower limbs.
Materials and methods: 270 subjects of both sexes at different age group and different body mass index; 135 athletics and 135 non-athletics were assessed on two sessions 2 weeks apart. To aid implementation we have created a new device with freely available software to extract data of the device in Kg and convert it into newton. The contractile force of different groups of muscles of the upper limb was measured at 2 sessions by 3 professional assessors. Statistical analysis using IBM SPSS software package version 20.0. Quantitative data were described using mean and standard deviation for normally distributed data. Comparison between two independent population were done using independent t-test while more than two population were analyzed F-test (ANOVA) to be used.
Results: Comparison of the contractile force of different groups of muscles of the upper and lower limbs between the 1st and 2nd measurements revealed that there was a highly significant positive correlation, the kappa in all variables was more than 0.70, indicating a high association of the two measurements. The new device has an excellent for most measures of force in athletics and non-athletics at different age groups.
Conclusion: the new device is assessment of the contractile force of different groups of muscles of the upper and lower limbs.

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