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THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS

Marco zakaria lamey, Prof. dr. Neveen A. Abdel Raoof, Dr. Magda G. Sedhom.

Abstract
Background:The elbow is a critical element for a functional upper extremity. The primary functions of the elbow are to positionthe hand in space, act as a fulcrum for the forearm, and allow for powerful grasping and fine motions of the hand and wrist.Purpose: to determine the difference between (anatomical zero) AZ handgrip and 90° pronated hand grip positions on elbow muscle performance at 45° and 80° shoulder abduction. Method:Eighty subjects(Males and Females), from 20 to 30 years old participated in this study, and were classified into four groups of equal number. Group I was tested at AZ handgrip position with 45° shoulder abduction. Group II was tested at AZ handgrip position with 80° shoulder abduction. Group III was tested at 90 degree pronated handgrip position with 45° shoulder abduction.
Group IVwas tested at 90° pronated handgrip position with 80° shoulder abduction. They were assessed by using Biodex isokinetic dynamometer to measure peak torque to body weight (PT/BW) and the agonist antagonist ratio of elbow flexor and extensormuscles at angular velocity 60° / second. Results: Results showed that there were no significant differences between AZ handgrip and 90° pronated hand grip positions on elbow muscle performance at 45° and 80° shoulder abduction.Conclusion: strengthening exercises of elbow flexors and extensors muscles can be done from any position from four positions due to there is not significant difference in peak torque of elbow flexors and extensors muscles in four positions.

Key words: AZ handgrip – isokinetic dynamometer - isokinetic torque –muscle strength.


 
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How to Cite this Article
Pubmed Style

lamey Mz, Raoof PdNAA, Sedhom DMG. THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research. 2017; 6(3): 33-36. doi:10.5455/ijtrr.000000277



Web Style

lamey Mz, Raoof PdNAA, Sedhom DMG. THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. www.scopemed.org/?mno=252291 [Access: October 21, 2017]. doi:10.5455/ijtrr.000000277



AMA (American Medical Association) Style

lamey Mz, Raoof PdNAA, Sedhom DMG. THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research. 2017; 6(3): 33-36. doi:10.5455/ijtrr.000000277



Vancouver/ICMJE Style

lamey Mz, Raoof PdNAA, Sedhom DMG. THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research. (2017), [cited October 21, 2017]; 6(3): 33-36. doi:10.5455/ijtrr.000000277



Harvard Style

lamey, M. z., Raoof, P. d. N. A. A. & Sedhom, D. M. G. (2017) THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research, 6 (3), 33-36. doi:10.5455/ijtrr.000000277



Turabian Style

lamey, Marco zakaria, Prof. dr. Neveen A. Abdel Raoof, and Dr. Magda G. Sedhom. 2017. THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research, 6 (3), 33-36. doi:10.5455/ijtrr.000000277



Chicago Style

lamey, Marco zakaria, Prof. dr. Neveen A. Abdel Raoof, and Dr. Magda G. Sedhom. "THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS." International Journal of Therapies and Rehabilitation Research 6 (2017), 33-36. doi:10.5455/ijtrr.000000277



MLA (The Modern Language Association) Style

lamey, Marco zakaria, Prof. dr. Neveen A. Abdel Raoof, and Dr. Magda G. Sedhom. "THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS." International Journal of Therapies and Rehabilitation Research 6.3 (2017), 33-36. Print. doi:10.5455/ijtrr.000000277



APA (American Psychological Association) Style

lamey, M. z., Raoof, P. d. N. A. A. & Sedhom, D. M. G. (2017) THE EFFECTOF FOREARM ROTATION ON STRENGTH OF ELBOW MUSCLES AT DIFFERENT SHOULDER POSITIONS. International Journal of Therapies and Rehabilitation Research, 6 (3), 33-36. doi:10.5455/ijtrr.000000277








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