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J Phys Ther Sci. 2014 May;26(5):749-51. doi: 10.1589/jpts.26.749. Epub 2014 May 29.

Electromyographic Activities of Trunk Muscles Due to Different Exercise Intensities during Pulley-based Shoulder Exercises on an Unstable Surface.

Author information

  • 1Department of Physical Therapy, Sahmyook University, Republic of Korea.

Abstract

[Purpose] This study examined the relationship between core stability and exercise intensity during a pulley-based shoulder exercise (PBSE) on an unstable support surface. [Subjects] Twenty healthy college students enrolled in this study. [Methods] Surface EMG was carried out in twenty healthy adult men. The electromyographic activities of the rectus abdominis (RA), erector spinae (ES), exercises with 14 kg or 26 kg of resistance and external oblique (EO) muscles during pulley-based shoulder on an unstable support surface (USS) were compared. [Results] The EMG signals of the RA, ES, and EO did not increase with increasing exercise resistance. [Conclusion] Increasing the exercise intensity to increase the core stability during PBSE on a USS may be ineffective.

KEYWORDS:

Ankle strategy; Core stability; Electromyography

PMID:
24926144
[PubMed]
PMCID:
PMC4047244
Free PMC Article
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