مقایسۀ تاثیر ارتعاش‌درمانی و آرام‌سازی عضلانی بر کمردرد پرستاران

مقدمه: کمردرد یکی از مشکلات شایع ناشی از اختلالات عضلانی - اسکلتی در پرستاران است. هدف این مطالعه تعیین تاثیر ارتعاش درمانی و آرام سازی عضلانی بر کمردرد پرستاران است.مواد و روش ها: در این کارآزمایی بالینی، 110 پرستار مبتلا به کمردرد به روش نمونه گیری آسان انتخاب و به صورت تصادفی به دو گروه آزمون یک و دو تقسیم شدند. ابزارهای پژوهش شامل فرم رضایت نامۀ کتبی، فرم اطلاعات دموگرافیک، ابزار سنجش درد عددی و فرم ثبت درد بود. گروه اول، به مدت 2 هفته روزانه 1 بار هر بار 10 دقیقه تحت ارتعاش درمانی قرار گرفتند. گروه دوم، 2 هفته روزانه یک بار هر بار 20 دقیقه آرام سازی عضلانی را انجام دادند. میزان درد قبل و بعد از مداخله در دو گروه سنجیده شد. داده ها با آمار توصیفی و استنباطی در نرم افزار spss نسخۀ 20 تجزیه وتحلیل شد. سطح معنی داری %5=α در نظر گرفته شد.یافته ها:دو گروه ازنظر اطلاعات دموگرافیک، همسان بودند (%5

Comparing the Effect of Vibration Therapy and that of Muscle Relaxation on Nurses with Low Back Pain

Introduction: Lower back pain is a common musculoskeletal disorder in nurses. Therefore, this study aimed to compare the effect of vibration therapy and that of muscle relaxation methods on nurses with low back pain.Methods: In this clinical trial, 110 nurses with low back pain were randomly assigned to two intervention groups (group I and group II). The research instrument were written consent form, demographic questionnare, numeric pain rating scale and pain assessment flowsheet. In group I, the nurses received vibration therapy once a day for 10 minutes for two weeks. In the group II, the nurses performed muscle relaxation once a day for 20 minutes for two weeks. Then, pain rate was measured before and after the intervention in both groups. The data were analyzed by SPSS 20 and alpha; =0.05 was considered significant.Results: There were no significant difference between the two groups in terms of demographic information (p>0.05). Before the intervention, there was no significant difference between the the groups in terms of average low back pain (P = 0.0814). After the intervention, both groups experienced a statistically significant decrease in pain compared to that before intervention (p le;0.001). The nurses rsquo; low back pain in the muscle relaxation group decreased from 5.8 to 4.25 and from 5.9 to 3.1 in the vibration therapy group. There was a significant difference between the groups in terms of the average pain severity after the intervention (p=0.044) so that the pain reduction rate in the vibration therapy group was higher than that in the muscle relaxation group.Conclusion: The results showed that vibration therapy and muscle relaxation reduced the nurses rsquo; low back pain. In other words, both methods were effective. However, vibration therapy was more effective.