Fahimeh saadat Jamali; Mahtab Moazemi; Nahid Bijeh; Homan Kamranian
Volume 22, Issue 2 , May and June 2015, , Pages 199-205
Abstract
Background and aim: Pain is one of the most common reasons that oblige people to refer to a doctor. With regard to beta-endorphin effect on pain reduction, the aim of this study is investigation of the effect of beta -endorphin serum level on amendment of dysmenorrhea factors after eight weeks aerobic ...
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Background and aim: Pain is one of the most common reasons that oblige people to refer to a doctor. With regard to beta-endorphin effect on pain reduction, the aim of this study is investigation of the effect of beta -endorphin serum level on amendment of dysmenorrhea factors after eight weeks aerobic exercise. Materials and Methods: This is a Clinical Trial. The sample included 22 subjects with moderate to severe dysmenorrhea, which randomly divided to two control group (n=10) and exercise group (n=12). Aerobic exercise program included aerobic activity with severity of 60-75% of maximum heart rate for 24 sessions (three sessions per week, each session lasting 45-60 minutes). Serum level of beta-endorphin was measured before and after the exercise intervention. Dependent and independent student t-test was used to investigate the intragroup and intergroup differences of beta-endorphin. Pearson correlation test was used to estimate the relation of variables of study. Results: Findings of study showed that exercise intervention made a significant increasing on the serum level of beta-endorphin. Also there is a significant negative relationship between serum level of beta-endorphin and intensity and perception of pain. But any significant relation with duration of pain was not observed. Conclusion: In general, it seems that increasing of beta-endorphin levels, which was created following the exercise, can have a role in analgesia and reduction of the indicators of dysmenorrhea pain.
Fahimeh Sadat Jamali; Mahtab Moazemi; Nahid Bije
Volume 21, Issue 4 , September and October 2014, , Pages 702-710
Abstract
Background: Menstrual is an inevitable reality and a part of life for millions of young women around the world. The aim of this study was to evaluate the effects of aerobic exercise on serum level beta - endorphin and pain perception of dysmenorrhea in sedentary adolescent girls.
Materials and Methods: ...
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Background: Menstrual is an inevitable reality and a part of life for millions of young women around the world. The aim of this study was to evaluate the effects of aerobic exercise on serum level beta - endorphin and pain perception of dysmenorrhea in sedentary adolescent girls.
Materials and Methods: This quasi-experimental study was conducted on 22 subjects with moderate to severe dysmenorrheal and were in age range of 14 to 17 years. They were randomly assigned to a control group (n=10) and experimental (n=12) one. Aerobic exercise program included an aerobic activity with 60-75% of maximum heart rate for 24 sessions (three sessions per week, each session lasting 45-60 min). Before and after the exercise serum level of beta-endorphin was measured. In order to investigate differences within and between groups, Dependent Student t-test and independent student t-test were used.
Results: Our findings showed that exercise intervention significantly increased serum levels of beta - endorphin and decreased pain perception index.
Conclusion: The results indicated that aerobic exercise can cause a euphoric state resulting from a rise in blood concentration of beta -endorphin and improve the perception of the pain of dysmenorrhea.