The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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The Different Muscle Activation of Upper Extremity and Core Muscle by the Changes of Leg Support Surface during Push-up Exercise

  • Kim, Sun-Uk (Department of Industrial Engineering, College of Convergence Technology, Dankook University) ;
  • Kim, Seong-Bin (Department of Industrial Engineering, College of Convergence Technology, Dankook University) ;
  • Yeo, Sang-Seok (Department of Physical Therapy, College of Health Sciences, Dankook University)
  • Received : 2016.05.20
  • Accepted : 2016.06.14
  • Published : 2016.06.30
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Abstract

Purpose: This study was designed to evaluate the effects of the different condition of leg support surface on the upper extremity and core muscle activity during the push-up exercise. Methods: Fifteen healthy subjects that were practicable push-ups were recruited in this study. Subjects were instructed the push-up exercise in the different condition of the leg support surface. Each condition of support surface was set to the high and lower, and the unstable and stable condition. Muscle activation was measured by using the surface electromyography (EMG), and recorded from the triceps brachii, serratus anterior, latissimus dorsi, rectus abdominis, abdominal external oblique, and erector spinea muscle. Results: In the results of experiments, there was no significant difference of muscle activation in upper extremity between the high unstable and high stable support surface. By contrast, muscle activation of the rectus abdominis and abdominal external oblique was significantly higher in the low unstable support surface, compared with those of the low stable support surface. It is well known that the core muscle was important to stabilization of trunk stability. Conclusion: This result demonstrates that the low and unstable support surface for the lower extremity was suited for training of core muscle for trunk stabilization during the push-up exercise.

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References

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