A comparison of frequency domain of the selected trunk and neck muscles in male children with forward head and healthy control ones during running

Jafarnezhadgero, AmirAli; Sorkhe, Elham; Salahi, Somayeh; Saki, Farzane

doi:10.22118/jsmj.2018.109981.1228

A comparison of frequency domain of the selected trunk and neck muscles in male children with forward head and healthy control ones during running

Document Type : Original Article

Authors

AmirAli Jafarnezhadgero ¹

Elham Sorkhe ¹

Somayeh Salahi ²

Farzane Saki ³

¹ Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran

² Department of Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Allame Tabatabaei, Tehran, Iran

³ Assistant professor, Faculty of sport sciences, Bu -Ali Sina University, Hamedan, Iran

10.22118/jsmj.2018.109981.1228

Abstract

Background and Objective: The aim of this study was to compare the frequency domain of selected trunk and neck muscles in children with forward head posture and healthy control ones during running.
Methods: 12 available male children with forward head (Age: 11.7±1.4 years, height: 149.7±6.2 cm, weight: 38.0±4.7 kg) and 16 healthy male children (Age: 11.8±1.3 years, height: 148.7±6.3 cm, weight: 39.6±5.4 kg) were volunteered to participate in this study. The electrical activity of the selected muscles on the both sides of the body were recorded during running.
Results: The frequency amplitude of right serratus anterior muscle in forward head group was higher than the healthy group by 17.6% during stance phase of running. The lower trapezius muscle asymmetry index in the forward head group was higher than that in the healthy group by 105%. Upper trapezius muscle asymmetry index in the forward head group was higher than that in the healthy group by 141% during swing phase of running (P=0.005).
Conclusion: Higher frequency content of the right stratus anterior muscle in the forward head group during stance phase of running may be due to weakness of tis muscle. Because of the differences in the lower and upper trapezius muscle asymmetry indices during stance and swing phases of running in children with forward head posture compared to healthy ones, it is necessary to design a training protocol for improving strength symmetry in these muscles in children with forward head posture.

Keywords

Frequency spectrum

Forward head posture

Running

Electromyography

Cervical and trunk muscles