فعالیت الکترومیوگرافی عضلات نگهدارنده ستون مهره‌ای با استفاده از تصاویر اولتراسوند و پروتکل SENIAM در بیماران اسکولیوز

نوع مقاله: فیزیولوژی ، بیومکانیک،آسیب شناسی ورزشی

نویسندگان

1 دانشجوی دکتری، گروه بیومکانیک ورزشی، دانشکده تربیت بدنی و علوم ورزشی دانشگاه بوعلی سینا، همدان

2 استاد گروه بیومکانیک ورزشی، دانشکده تربیت بدنی و علوم ورزشی دانشگاه بوعلی سینا، همدان ایران

3 پزشک متخصص پرتونگاری، همدان،

4 استادیار گروه فیزیوتراپی، دانشگاه تربیت مدرس تهران

چکیده

زمینه و هدف: بررسی فعالیت عضلانی در بیماران اسکولیوز اهمیت کلینیکی دارد. هدف از این مطالعه مقایسه اثر نحوه الکترودگذاری بر اساس توصیه­های SENIAM با روش اولتراسوند بر میزان فعالیت ثبت شده در عضلات نگهدارنده ستون مهره­ای بود.
روش­ شناسی: تعداد 10 دختر مبتلا به اسکولیوز نوجوانی ناشناخته با انحنای دوبل در این مطالعه شرکت کردند. در وظایف حرکتی سوپرمن، ابداکشن بازو و Quadruped  فعالیت الکترومیوگرافی عضلات نگهدارنده ستون مهره­ای در سطوح مهره های ششم و دهم سینه­ای، و سوم کمری با استفاده از دستگاه الکترومیوگرافی سطحی 16 کاناله مدل BTS FREE EMG 300 ساخت کشور ایتالیا اندازه گیری شدند. راستای الکترودها در روش اول بر اساس توصیه­های SENIAM و در روش دوم منطبق بر راستای فیبرهای عضلانی مشاهده شده در تصاویر التراسوند تعیین گردیدند.
یافته­ ها: در روش اولتراسوند جهت الکترودها نسبت به روش SENIAM حدود22/8±°3/13 انحراف نشان داد، اما در هیچ یک از آزمون­های حرکتی تفاوت معناداری در فعالیت الکترومیوگرافی عضلات مختلف ستون مهره­ای هنگام اندازه­گیری با این دو روش مشاهده نشد. در هر دو روش عضلات در سمت دست حرکت کننده، فعالیت بالاتری از عضلات سمت مخالف نشان دادند (05/0>p).
 نتیجه­ گیری: جهت قرارگیری الکترودها در روش اولتراسوند نسبت به روش SENIAM تغییر معناداری داشتند، اما این تغییر در مقادیر اوج RMS تفاوتی ایجاد نکرد. به نظر می­رسد برای اندازه­گیری اوج فعالیت الکترومایوگرافی همسان­سازی شده عضلات نگهدارنده ستون مهره­ای در بیماران اسکولیوز ضرورتی برای استفاده از التراسوند وجود ندارد. هرچند که در سایر متغیرهای الکترومیوگرافی از جمله فرکانس و یا زمان شروع فعالیت عضلانی نیاز به بررسی بیشتر وجود دارد.
 
 

کلیدواژه‌ها


عنوان مقاله [English]

Electromyographic activity of erector spinae muscles using ultrasound images and SENIAM protocol in patients with adolescent idiopathic scoliosis

نویسندگان [English]

  • Mehri Mohamadi Dangharalo 1
  • Nader Farahpour 2
  • Ali Ehsan Saleh 3
  • Farid Bahrpyma 4
1 Sport Biomechanics Department, Bu Ali Sina University, Hamedan, Iran
2 Sport Biomechanics Department, Bu Ali Sina University, Hamedan, Iran
3 Radiologist, Doctor of Medicine
4 Physiotherapy Department, Tarbiat Modarres University, Tehran, Iran
چکیده [English]

Background & Purpose: Measurements of muscle activity in scoliosis has clinical importance. The aim of this study was to compare the effects of electrode placement method based on SENIAM with ultrasound method on the activation levels of erector spinae muscles in patients with adolescent idiopathic scoliosis.
Methodology: 10 female idiopathic scoliosis patients with double curvature participated in this study.
During superman, upper arm abduction, and quadrupt exercises, the activity of erector spinae muscles at T6, T10, and L3 levels were measured using a 16 channel BTS FREE EMG 300 EMG system with surface electrodes. In the first method, electrodes’ direction was placed based on SENIAM protocol, and then in the second method, they were based on the ultrasound images.
Results: The differences between the directions of electrodes in two methods were 13.3º ± 8.22º. There was not any significant difference between methods on the amplitudes of the EMG activities of erector spinae muscles (p>0.05).
 In both methods, the ipsilateral muscles to the arm movements displayed higher activity than the contralateral muscles.
Conclusion: The direction of electrodes in ultrasound method was significantly different from that of the SENIAM method. However, this difference did not alter the amplitudes of the EMG signals. It seems that the application of ultrasound in EMG measurements in scoliosis is not necessary. However, the effects of ultrasound technique on EMG parameters other than the amplitude need further analysis.

کلیدواژه‌ها [English]

  • Adolescent idiopathic scoliosis
  • erector spinae muscles
  • ultrasound
  • muscle activity
  • SENIAM protocol
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