한국전문물리치료학회지 (Physical Therapy Korea)

  • 제23권1호
  • /
  • Pages.80-86
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  • 2016
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  • 1225-8962(pISSN)
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  • 2287-982X(eISSN)
한국전문물리치료학회 (Korean Research Society of Physical Therapy)
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Comparison of EMG Activity of the Posterior Oblique Sling Muscles and Pelvic Rotation During Prone Hip Extension With and Without Lower Trapezius Pre-Activation

  • Jeon, In-cheol (Kinetic Ergocise Based on Movement Analysis Laboratory) ;
  • Ha, Sung-min (Dept. of Physical Therapy, College of Health Science, Sangji University) ;
  • Hwang, Ui-jae (Kinetic Ergocise Based on Movement Analysis Laboratory) ;
  • Jung, Sung-hoon (Kinetic Ergocise Based on Movement Analysis Laboratory) ;
  • Kim, Hyun-sook (Dept. of Physical Therapy, Yeoju Institute of Technology) ;
  • Kwon, Oh-yun (Kinetic Ergocise Based on Movement Analysis Laboratory)
  • 투고 : 2015.11.25
  • 심사 : 2016.01.28
  • 발행 : 2016.02.19
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초록

Background: Prone hip extension (PHE) can be performed to measure the lumbopelvic motor patterns and motions. Imbalances in lumbopelvic muscle activity and muscle weakness can result in instability including pain in lumbopelvic region. The posterior oblique sling (POS) muscles contribute to dynamic lumbopelvic stability. In addition, POS are anatomically aligned with the trapezius muscle group according to shoulder positions. Objects: This study compared the electromyography (EMG) activity of POS and pelvic compensations during PHE with and without pre-activation of lower trapezius muscle (lowT). Methods: Sixteen healthy males were recruited. PHE was performed in randomized order: PHE with and without lowT pre-activation. Surface EMG signals were recorded for biceps femoris (BF), gluteus maximus (GM) (ipsilateral), lumbar multifidus (MF) (bilateral), and the lowT (contralateral). An electromagnetic tracking motion analysis was used to measure the angle of pelvic rotation and anterior tilting. Results: The ipsilateral GM and bilateral MF EMG amplitudes were greater during PHE with lowT pre-activation compared to PHE without lowT pre-activation (p<.05). The BF amplitude during PHE without lowT pre-activation was significantly greater than that during PHE with lowT pre-activation (p<.05). The angles of pelvic rotation and anterior tilting during PHE with lowT pre-activation were significantly smaller compared to PHE without lowT pre-activation (p<.05). Conclusion: PHE with lowT pre-activation, which is aligned with the POS, showed more increased MF and GM muscular activity with smaller lumbopelvic compensations in rotation and anterior tilting compared to PHE without lowT pre-activation.

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참고문헌

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피인용 문헌

  1. Comparison of Muscle Activities of the Posterior Oblique Sling Muscles among Three Prone Hip Extension Exercises with and without Contraction of the Latissimus dorsi vol.14, pp.3, 2019, https://doi.org/10.13066/kspm.2019.14.3.39