AN ELECTROMYOGRAPHIC COMPARISON OF NECK CONDITIONING EXERCISES IN HEALTHY CONTROLS

被引:4
作者
Burnett, Angus F. [1 ,2 ]
Coleman, Jemma L. [2 ]
Netto, Kevin J. [3 ]
机构
[1] Edith Cowan Univ, Sch Exercise Biomed & Hlth Sci, Perth, WA, Australia
[2] Curtin Univ Technol, Sch Physiotherapy, Bentley, WA 6102, Australia
[3] Deakin Univ, Sch Exercise & Nutr Sci, Burwood, Vic, Australia
关键词
Thera-Band; Cybex; strength; rehabilitation; intensity;
D O I
10.1519/JSC.0b013e3181635641
中图分类号
G8 [体育];
学科分类号
04 [教育学]; 0403 [体育学];
摘要
The purpose of this study was to compare surface electromyography (EMG) activation levels of selected neck muscles for two common neck-training modalities (Thera-Band and Cybex). Seventeen asymptomatic subjects (eight men and nine women) with a mean age 23.4 years were recruited. EMG activation normalized to maximal voluntary isometric contraction (MVIC) was measured with subjects performing exercises with green, blue, and black Thera-Bands and 50%, 70%, and 90% of 3RM for the Cybex modality. Four variables were used to depict exercise intensity: average and peak EMG activation in the concentric and eccentric phases. Significant differences (P <= 0.05) in EMG activation were evident when comparing intensities of the Cybex modality with each other and when comparing the Cybex intensities with Thera-Band intensities in most cases. Minimal differences were found among differing intensities of Thera-Band. Thera-Band exercise resulted in low-level EMG activation (range, flexion 3.8-15.7% MVIC; range, extension 20.2-34.8% MVIC); therefore, such exercise may be useful in rehabilitation programs. Cybex exercise (range, flexion 20.9-83.5% MVIC; range, extension 40.6-95.8% MVIC) may be useful for occupation-related injury prevention. However, exercise prescription should be undertaken with care as the mechanical loading on passive spinal structures is unknown.
引用
收藏
页码:447 / 454
页数:8
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