The Iranian Journal of Obstetrics, Gynecology and Infertility

The Iranian Journal of Obstetrics, Gynecology and Infertility

The effect of an aerobic training cycle in the morning and evening on primary dysmenorrhea and some physiological variables in matured girls

Document Type : Original Article

Authors
Sara Sarhadi 1
Alireza Ramezani 2
Mina Gholami 3
Hamed Taheri 4
1 M.Sc. of Exercise Physiology, School of Physical Education and Sports Sciences, Shahid Rajaee University, Tehran, Iran .
2 Associate Professor, Department of Physiology, School of Physical Education and Sports Sciences, Shahid Rajaee University, Tehran, Iran.
3 Instructor of Physiology, School of Physical Education and Sports Sciences, Shahid Rajaee University, Tehran, Iran.
4 Resident of Internal Medicine, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
10.22038/ijogi.2015.4975
Abstract
Introduction: Primary dysmenorrhea is one of the most common complaints of who referred to gynecologists. It seems that the effect of exercise on dysmenorrhea and also considering the interaction of aerobic exercise with the times of day is more effective method to reduce dysmenorrhea pain. This study was performed with aim to compare the effect of aerobic training cycle in morning and evening on the severity of primary dysmenorrhea pain and some physiological variables of matured girls.
Method: In this study which was performed by field method, among 1033 girl students in Baharestan city, 38 matured girls with a history of primary dysmenorrhea were selected and were randomly divided into two groups of 19 cases (morning and evening). Training protocol (aerobics and fitness training) consisted of four weeks, each week four sessions of 50 minutes with the intensity of 65-70% heart rate Reserve. Visual analog scale was used to measure the severity of pain and 1600m running test was used to measure the maximal consumed oxygen. Data was analyzed with SPSS software (version 18) and Wilcoxon test and Mann Whitney U test. PResults: The exercise caused increase in maximal consumed oxygen and significant reduction in the severity of dysmenorrhea pain and resting heart rate from pre-test to post-test in both groups (P<0.05), but there was no significant difference between the morning and evening groups in the mentioned variables (P>0.05). There was no significant difference between pre-test and post-test in blood pressure and body temperature in two morning and evening groups (P>0.05).  Also, there was no significant difference between two groups in terms of blood pressure and body temperature (P>0.05).
Conclusion: Aerobic training causes reduction in dysmenorrhea pain and heart rate and increase maximal consumed oxygen, and there is no difference between exercise in the morning and evening.
Keywords
Aerobic training
Biological clock
Matured girls
Physiological variables
Primary dysmenorrhea
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The Iranian Journal of Obstetrics, Gynecology and Infertility
Volume 18, Issue 162 - Serial Number 162
September 2015
September 2015
Pages 11-20