INVESTIGATING THE RELATION OF MAXIMUM EMG ACTIVITY AND FATIGUE OF ERECTOR SPINAE MUSCLES WITH THORACIC AND LUMBAR CURVATURE

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MINOUNEZHAD HOUMAN; RAJABI REZA; RAHIMI ABAS; SAMADI H.

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Journal: OLYMPIC Year:2009 | Volume:17 | Issue:2 (SERIAL 46) Page(s): 43-51

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Information Journal Paper

Title

INVESTIGATING THE RELATION OF MAXIMUM EMG ACTIVITY AND FATIGUE OF ERECTOR SPINAE MUSCLES WITH THORACIC AND LUMBAR CURVATURE

Author(s)

MINOUNEZHAD HOUMAN | RAJABI REZA | RAHIMI ABAS | SAMADI H. | Issue Writer Certificate

Keywords

ELECTROMYOGRAPHYQ2

FATIGUEQ2

THORACIC CURVATUREQ3

LUMBAR CURVATUREQ3

ERECTOR SPINAE MUSCLESQ3

Abstract

The Present Research intends to investigate the relation between maximum EMG activity (as an index of strength) and FATIGUE of ERECTOR SPINAE MUSCLES (as an index of endurance) with lumbar and THORACIC CURVATURE among non-athletes. 22 male, healthy non-athletes took part in this research. Height average: 175.78±4.09Cm, Weight Average: 72.04±4.6 Kg and Age Average: 25.4±3.7. At the beginning the Thoracic and LUMBAR CURVATURE of any of these people was measured through Spinal Mouse Instrument. Then, applying MVC Isometric Trunk Extension method, the maximum Electromyographic activity of ERECTOR SPINAE MUSCLES was collected. At the end, with Trunk Holding Test the Median Frequency Slope was calculated with raw EMG Signals and was considered as an Indicator of Muscles FATIGUE. The results of Pierson Correlation Coefficient statistical test show that there is not a significant correlation between maximum ELECTROMYOGRAPHY Activity of the Erector Spine Muscles and the size of THORACIC CURVATURE. But, a positive significant correlation between the FATIGUE indicator of this muscles and the THORACIC CURVATURE was observed. (P = 0.022, r = 0.535). In addition, there is another positive significant correlation between Maximum ELECTROMYOGRAPHY Activity of the ERECTOR SPINAE MUSCLES with the size of LUMBAR CURVATURE (P = 0.043, r = 0.527). But there is no observable relation between the FATIGUE indicator of this muscles and the LUMBAR CURVATURE. Considering these results, it is suggested to pay more attention to the endurance of back extensor muscles when facing Kyphosis. Also it is recommended to consider the strength and the weakness of back extensor muscles when prescribing exercises for LUMBAR CURVATURE correction.

Cites

ABDOMINAL MUSCLES ACTIVITY IN HEALTH AND HYPERLORDOSE GROUPS DURING PRONE BRIDGING STABILIZATION EXERCISE

References

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APA: Copy

MINOUNEZHAD, HOUMAN, RAJABI, REZA, SAMADI, H., & RAHIMI, ABAS. (2009). INVESTIGATING THE RELATION OF MAXIMUM EMG ACTIVITY AND FATIGUE OF ERECTOR SPINAE MUSCLES WITH THORACIC AND LUMBAR CURVATURE. OLYMPIC, 17(2 (SERIAL 46)), 43-51. SID. https://sid.ir/paper/37853/en

Vancouver: Copy

MINOUNEZHAD HOUMAN, RAJABI REZA, SAMADI H., RAHIMI ABAS. INVESTIGATING THE RELATION OF MAXIMUM EMG ACTIVITY AND FATIGUE OF ERECTOR SPINAE MUSCLES WITH THORACIC AND LUMBAR CURVATURE. OLYMPIC[Internet]. 2009;17(2 (SERIAL 46)):43-51. Available from: https://sid.ir/paper/37853/en

IEEE: Copy

HOUMAN MINOUNEZHAD, REZA RAJABI, H. SAMADI, and ABAS RAHIMI, “INVESTIGATING THE RELATION OF MAXIMUM EMG ACTIVITY AND FATIGUE OF ERECTOR SPINAE MUSCLES WITH THORACIC AND LUMBAR CURVATURE,” OLYMPIC, vol. 17, no. 2 (SERIAL 46), pp. 43–51, 2009, [Online]. Available: https://sid.ir/paper/37853/en

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