تأثیر مداخلات تمرینی بر والگوس داینامیک زانو: مطالعه مروری نظام مند: تمرینات ورزشی و والگوس داینامیک زانو

Background and Objectives: Increase in dynamic knee valgus during movements such as landing, jumping, cutting, stepping up and down, and walking is one of the risk factors for knee injuries and a reduction in the mechanical efficiency of movement. Recent research has shown that landing with dynamic knee valgus causes weakness and possible defects in dynamic movements of lower limbs; Therefore, the aim of this study was to determine the effectiveness of exercise intervention on dynamic knee valgus angle during landing, jumping, and cutting tests. Method and Material: Seven electronic databases in Persian (three databases) and English (four databases) and specified keywords were used to identify the studies. These studies include the effects of exercise interventions on dynamic knee valgus during jumping, landing, and cutting tests which were published between 2010 to 2020 and 1390 to 1399 in both Persian and English. Results: Eleven articles with a total of 445 participants met the inclusion and exclusion criteria of the present study. Eight studies reported a significant effect of exercise programs (between three and 10 weeks) on reducing the dynamic knee valgus, and only three studies (between 16 and 24 sessions) showed no difference in dynamic knee valgus. According to the results of this study, Core exercises (strength and stability) and plyometric exercises with 64% and 80% reduction in dynamic knee valgus were the most effective methods in improving the kinematics of the lower limb, respectively. Conclusion: Using jump-landing, strong core, and lower limb exercises before the main exercise (at least 20 minutes) can reduce dynamic knee valgus and prevent lower limb injuries. How to cite this article: Ramezani F, Saki F, Sohrabi T. The Effects of Exercise Interventions on Dynamic Knee Valgus: A Systematic Review. Irtiqa Imini Pishgiri Masdumiyat. 2022;10(1): 43-54.سابقه و هدف: افزایش زاویه والگوس زانو در خلال حرکات پویا نظیر فرود، پرش، برش، بالا و پایین رفتن از پله و راه‌رفتن، یکی از عوامل خطرآفرین آسیب‌‌های زانو و کاهش بازده مکانیکی حرکت است. تحقیقات اخیر نشان داده‌اند، فرود با والگوس پویا زانو، ضعف و نقص احتمالی حرکات پویا اندام تحتانی را باعث می‌شود؛ هدف از این مطالعه تعیین اثربخشی مداخلات تمرینی مختلف بر زاویه والگوس زانو طی آزمون‌های فرود، پرش و برش بود. روش بررسی: مطالعه به روش مرور نظام مند انجام شد.جهت شناسایی مطالعات مورد نظر از هفت پایگاه الکترونیکی اطلاعاتی فارسی (سه پایگاه) و انگلیسی (چهار پایگاه) و کلیدواژه‌های مشخص شده، استفاده گردید. این مطالعات شامل اثربخشی مداخلات تمرینی بر والگوس داینامیک زانو طی آزمون‌های پرش، فرود و برش است که بین سال‌های 2010 تا 2020 و 1390 تا 1399 به زبان‌های فارسی یا انگلیسی منتشر شده بود. نتایج: یازده مقاله با مجموع 445 شرکت‌کننده (گروه تمرین: 252 نفر و گروه کنترل: 203 نفر) معیارهای ورود و خروج مطالعه حاضر را برآورده کردند. هشت مطالعه تأثیر قابل‌توجه برنامه‌های ورزشی (بین سه تا 10 هفته) را بر کاهش زاویه والگوس پویا زانو گزارش کردند و تنها سه مطالعه (بین 16 تا 24 جلسه) تفاوتی در زاویه والگوس پویا زانو نشان ندادند. براساس نتایج این مطالعه تمرینات میان تنه (قدرتی و ثباتی) و تمرینات پلایومتریک به ترتیب با 64% و 80% کاهش در زاویه والگوس داینامیک زانو بیشترین اثربخشی را در بهبود کینماتیک اندام تحتانی داشتند. نتیجه‌گیری: استفاده از تمرینات پرش - فرود و تمرینات قدرتی میان تنه و اندام تحتانی قبل از تمرینات اصلی ورزشی (حداقل به مدت 20 دقیقه) می‌تواند والگوس پویا زانو را کاهش دهد و در نهایت از آسیب‌های اندام تحتانی جلوگیری کند. How to cite this article: Ramezani F, Saki F, Sohrabi T. The Effects of Exercise Interventions on Dynamic Knee Valgus: A Systematic Review. Irtiqa Imini Pishgiri Masdumiyat. 2022;10(1): 43-54

The Correlation of Kyphosis, Lordosis and Pelvic Tilt with Pelvic Organ Prolapses

Objective: Given high prevalence of pelvic organ prolapse in female, and necessity of effect assessment of it's risk factors in various societies, this study was aimed to investigate the correlation of thoracic and lumbar spinal curvature as well as pelvic tilt changes with pelvic organ prolapse. Materials & Methods: In this cross-sectional and case-control study, fifteen females with pelvic organ prolapse, on the basis of inclusion criteria were selected by simple and convenient sampling from Imam Khomeini and Akbar abadi hospitals patients as case group. Also, fifteen females with zero or first degree of prolapse were selected by matching with cases as control group. Prolapse condition of both groups participants was assessed by pelvic organ prolapse qualification (POP-Q) system and spinal curvature of thoracic and lumbar as well as pelvic tilt were assessed by flexicurve ruler and pelvic inclinometer, respectively. Data were analyzed by Kolmogroff-Smirnoff, Independent T and Multiple Logistic Regression tests. Results: There was no significant difference between two groups in kyphosis (P=0.26), lordosis (P=0.52) and pelvic tilt (P=0.41). Conclusion: Although the results of study do not show significant correlation between kyphosis, lordosis and pelvic tilt with pelvic organ prolapse occurrence but similar direction of changes in the variables with our hypothesis and other studies preserve the likelihood of relationship between the increasing of kyphosis and decreasing of lordosis in pelvic organ prolapse in a large statistic society

Effect of propolis intake on serum C-Reactive Protein (CRP) and Tumor Necrosis Factor-alpha (TNF-α) levels in adults: a systematic review and meta-analysis of clinical trials

Background Propolis is a natural Product and the antioxidant properties of Propolis appear to be principally responsible for its therapeutic effects. However, several studies have shown the positive effect of Propolis on the reduction the levels of inflammatory markers; some others have revealed non-significant impacts on them. Hence, the present systematic review and meta-analysis aimed to investigate the effects of Propolis intake on C-reactive protein (CRP) and tumor necrosis factor-alpha (TNF-α). Methods The systematic search was undertaken in scientific databases that included: PubMed, Embase, Scopus and Web of Science to find studies assessing the effects of Propolis on CRP and TNF-α up to December 2019. Standardized mean difference (SMD) and 95 % confidence intervals (CI) were pooled using a random-effects model. Potential publication bias was tested using Egger’s test. Results Six studies comprising 406 participants were included in the meta-analysis. Compared to controls, Propolis intake significantly reduced serum TNF-α (SMD = −0.48, 95 % CI = [−0.69, −0.26], P < 0.0001, I2 = 66.9 %) and CRP (SMD = −0.38, 95 % CI = [−0.68, −0.07], P = 0.01, I2 = 44.4 %) levels. No evidence of publication bias was found in the meta-analyses. Conclusion The present study concluded in the statistically and clinically reduction of serum CRP and TNF-α levels following Propolis intake