Isometric elbow extensors strength in supine- and prone-lying positions

Date
2013-01
Authors
Abdelzaher, Ibrahim E.
Ababneh, Anas F.
Alzyoud, Jehad M.
Journal Title
Journal ISSN
Volume Title
Publisher
Informa
Abstract
The purpose of this study was to compare isometric strength of elbow extensors measured in supine- and prone-lying positions at elbow flexion angles of 45 and 90 degrees. Twenty-two male subjects under single-blind procedures participated in the study. Each subject participated in both supine-lying and prone-lying measuring protocols. Calibrated cable tensiometer was used to measure isometric strength of the right elbow extensors and a biofeedback electromyography was used to assure no substitution movements from shoulder girdle muscles. The mean values of isometric strength of elbow extensors measured from supine-lying position at elbow flexion angles of 45 and 90 degrees were 11.1 ± 4.2 kg and 13.1 ± 4.6 kg, while those measured from prone-lying position were 9.9 ± 3.6 kg and 12 ± 4.2 kg, respectively. There is statistical significant difference between the isometric strength of elbow extensors measured from supine-lying position at elbow flexion angles of 45 and 90 degrees compared to that measured from prone-lying position (p < 0.05). The results suggest that in manual muscle testing starting position can affect the isometric strength of elbow extensors since supine-lying starting position is better than prone-lying starting position.
Description
Keywords
Elbow--Muscles, Muscle strength, Supine position
Citation
Abdelzaher, I. E., Ababneh, A. F., & Alzyoud, J. M. (2013). Isometric elbow extensors strength in supine- and prone-lying positions. Physiotherapy Theory & Practice, 29(1), 61–66. https://doi.org/10.3109/09593985.2012.673697
DOI
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