The effect of corrective exercises on musculoskeletal disorders of Khoramabad workers

زمینه و هدف: با توجه به لزوم شناخت اختلالات اسکلتی- عضلانی در کارگران به منظور ارتقاء سلامت آنان به عنوان بخش عظیمی از سرمایه کاری کشور و کمبود مطالعه در زمینه ارائه راهکار برای بهبود این اختلالات، مطالعه حاضر با هدف ارزیابی تأثیر تمرینات ورزشی اصلاحی بر اختلالات اسکلتی عضلانی کارگران در شهر خرم‌آباد در سال 1391، انجام شد. روش بررسی: مطالعه حاضر پژوهشی نیمه تجربی است، جامعه آماری مورد مطالعه کارگران مرد مرکز صنعتی شماره 1 و 2 شهر خرم‌ آباد بود. 320 نفر در ارزیابی اولیه مورد بررسی قرار گرفتند که 196 نفر با توجه به معیارهای ورود به مطالعه، شرایط مطالعه را داشته و به پرسشنامه پاسخ دادند. ابزار پژوهش پرسشنامه استاندارد بررسی اختلالات اسکلتی- عضلانی نوردیک بود. برنامه اصلاح اختلالات با توجه به موارد شناسایی شده (113 مورد) توسط کارشناس تربیت بدنی اجرا شد. تمرینات اصلاحی به صورت کششی و تقویتی در 24 جلسه به مدت 8 هفته انجام شد. یافته‌ها: 113 نفر سابقه درد و ناراحتی در اندام و اعضاء اسکلتی عضلانی خود داشتند و هیچ‌گونه سابقه قبلی بیماری نداشتند. 58 کارگران حداقل در یکی از نواحی نه‌ گانه مورد بررسی بدن دچار اختلالات اسکلتی- عضلانی بودند که بیشترین شیوع در ناحیه کمر (6/31)، گردن (8/19) شانه (5/29) و زانو (8/17) بود. پس از مداخله کاهش معنی ‌داری (05/0˂P) در مشکلات تمامی نواحی نه ‌گانه دیده شد. نتیجه‌گیری: تمرینات اصلاحی باعث کاهش درد و مشکلات اسکلتی- عضلانی کارگران می‌شود

A comparison of life quality and public health after natural and cesarean delivery in women referred to khorramabad health centers in 2009-2011

Background : The aim of this study is to compare the quality of life and public health after natural and cesarean delivery in women referred to Khorramabad health centers in 2009-2011. Materials and Methods: In this cohort study all pregnant women referred to health centers in Khorramabad were studied. 380 persons participated in the study selected using purposive sampling method. Data collection was done in 18 months. The information was collected in steps (a): the last month of pregnancy and (b):eight weeks after delivery.GHQ questionnaire was used in order for primary assessing, its validity confirmed by the World Health Organization. Data were analyzed using logistic regression, chi square test, Mann-Whitney at 5% significance level with SPSS software, version 16. Results: 250 subjects out of 380(146 natural deliveries and 104 cesarians) filled out interview forms and questionnaires. The results show that there are statistically significant differences between physical domain scores (P = 0.001) and mental scores (P = 0.02)which show significant differences in quality of life and in environment and social areas and total, no statistically significant difference was observed. Chance of causing disease symptoms in women with cesarean delivery in the scale of physical complaints was 09.3 times (P = 0.001), depression 75.1 times (P = 0.02) and impaired social interaction 68.1 times (P = 0.04) greater than women with vaginal delivery, all of which are significant at the 5% level of statistical error. Conclusion:Quality of life in its various aspects and general health in mothers with normal delivery, better grades and better shows

The effect of eight weeks of high intensity interval training on gene expression of liver X receptors (LXR) in Wistar male rats

Background: This study aimed to investigate the effect of eight weeks of interval training on gene expression of liver X receptors (LXR) in Wistar male rats. Materials and Methods: In this study, 24 male wistar rats (200-250 g) were randomly used to three groups for this purpose, 24 male Wistar rats were prepared and divided into three groups: control (8 = n), high intensity intermittent exercise (8 = n) and continuous submaximal exercise (8 = n), respectively. The treadmill exercise program was performed for eight weeks, three days a week for 40 minutes. High intense exercise protocol, 30 minutes running periodic (every period of four minutes and two minutes running with 90-85% of VO2 max intensity active recovery with 60-50% of VO2 max) three days a week for eight weeks. Also, the continuous training group under maximum was an  exercise intensity equivalent to 50 to 55 percent of maximum oxygen consumption of the  mice. Results: The results showed that there was a significant difference between the four groups in the gene expression level, after data analysis and test research hypotheses, findings of this study show that the expression of LXR alpha gene, apolipoprotein 1, ABCG1 a significant increase in intensity interval exercise than the control group (p = 0.004). The results also showed a significant difference between the three groups in the expression of LXR beta and apolipoprotein 2, SR-BI does not exist. Although the results showed a slight increase in groups of periodic training and continuing slight increase, but this has not led to a significant difference. Conclusion: Overall results indicated the superiority of intense interval training than submaximal exercise in reverse cholesterol transport is continuous. Intense interval training by increasing hepatic expression of the receptor gene as well as the main cause of the liver and eventually out HDL receptors can play an important role in reducing cardiovascular diseases such as atherosclerosis. &nbsp

Impact determination of strength and resistance training on Glycoside hemoglobin and blood sugar on patients with type II diabetes”

Background : This study determined the impact of strength and resistance training on hemoglobin Glycoside and glucose in type II diabetic patients in Khorramabad in 2009. Materials and Methods: This quasi-experimental study was carried out on 30 men with type 2 diabetes referred to laboratories in Khorramabad, selected by screening and interview and purposeful sampling . After the subjects completed questionnaires of medical records and written consent, they were randomly divided into three groups: endurance training, strength and control groups. Conditions for participants were: over 30 years of age, blood sugar 150-250, the absence of any other chronic disease and history of sports last three months, stroke, hypertension, diabetes and severe complications . Before training, the subjects were fasting for 8-12 hours and then blood sampling was performed. Strength training and endurance for 8 weeks under coach concerned were applied. Strength training includes 10 motions for muscles and for each move three to four sets and sets of 10 to 12 repeats were considered and the principle of overload followed during the eight weeks . Endurance exercise was running on a treadmill machine with a maximum heart rate 60%. Ten subjects in the control group followed and performed the recommendations till end of the study. After the eight-week training period, post test (blood test) done. Data were analyzed using SPSS statistical software.T pairs was used to compare means(Pre test, Post test). Results: 29 subjects in three groups of exercises were conducted until the end. Average age, weight, BMI and the amount of drug in the three groups showed no significant difference statistically (p=0/76). Reduction in glaciated hemoglobin before and after the endurance test, showed significant differences (p =0/02 ). Conclusion: This study shows that endurance training reduces Glycoside hemoglobin levels, the amount of strength training, although it did not significantly reduce, the strength training appears to cause more significant changes

The Effect of Three-Week Intensive Interval Training on Lipocalin-2 and Interleukin1-β in Healthy and Adult Rat Hippocampus

Abstract Background: In response to the exercise, variety of inflammatory and anti-inflammatory changes in cytokines were occurred into the tissue spaces and also to the systemic circulation. The purpose of the current study was to determine the effect of three-week intensive interval training on Lipocalin-2 and Interleukin1-β in healthy and adult rat hippocampus. Materials and Methods: Twenty Wistar rats were divided into training and control groups. Training group performed 15 (bouts) × 4 (min) exercise training for 60 min with 85 to 90% of VO2max used for four sessions/week (for 3 weeks). Then, blood (for ELISA analyzing) and tissue sampling was performed from rat’s hippocampus and they were evaluated by using a Real-Time PCR method. Also, independent and paired t tests were used to define within and between group differences. Results: Findings showed that gene translations of Lipocalin-2 and Interleukin1-β were significantly decreased in rat’s hippocampus (p=0.0001 and p=0.0001, respectively). Also, similar decreases were shown in serum levels of Lipocalin-2 and Interleukin1-β in rats (p=0.017 and p=0.003, respectively). Conclusion: It seems that significant decrease of Lipocalin-2 subsequent of short-time intensive interval training is due to decreasing and significant changes in Interleukin1-β. Also, current training protocol on treadmill can significantly decrease levels of Lipocalin-2 and Interleukin1-β in rat serum and hippocampus

The influence of low-intensity resistance training versus high-intensity resistance training on left ventricular structure and function of healthy adolescent boys using Echocardiography

Background: The study on the influence of different protocol of resistance training on left ventricular of adolescent boys dose have its limitation. The aim of this study was to determine the influence of low-intensity resistance training versus high-intensity resistance training on left ventricular structure and function of healthy adolescent boys by echocardiography. Materials and Methods: Twenty-four subjects volunteers, 15 to 18 years old were randomly assigned to three groups in the eight-member low-intensity resistance training (40% to 60% maximum strength), high-intensity resistance training (70% to 90% maximum strength) and control group. Protocol training was conducted 8 weeks, 3 sessions. Variables were measured using one and two-dimensional echocardiography at rest and special formulas. Results: In the post-test to pre-test, in low-intensity resistance training group means values, left ventricular posterior wall thickness at end-systole (P=0.028) and resting heart rate (P=0.017) showed significant increase and decrease respectively. In post-test, it was shown a significant increase means values left ventricular posterior wall thickness at end-systole and left ventricular mass index in low-intensity resistance training group than high-intensity resistance training group (P=0.007 and P=0.005 respectively) and control group (P=0.005 and P=0.0015 respectively) and mean value left ventricular mass in low-intensity resistance training group than high-intensity resistance training group (P<0.007). Conclusion: Low-intensity resistance training than high-intensity resistance training in healthy adolescent boys caused some changes in left ventricular structure and function, probably these changes were associated with increased volume and pressure load