Does exercise reduce PMS symptoms differently in people with different temperaments?

Introduction: Premenstrual syndrome is experiencing of some physical and mental symptoms, and temperament can determine physical, psychological and emotional characteristics of the individual. Exercise is one of the treatments to reduce the symptoms of premenstrual syndrome. Therefore, this study was performed with aim to determine the prevalence of physical and mental symptoms of premenstrual syndrome after 8 weeks of regular aerobic exercise in warm and cold temperament. Methods: This clinical trial study with two groups of control and intervention and with two subgroups of warm and cold temperament was performed on 70 students in dormitories of Mashhad University of Medical Sciences in 2014. The intervention group performed aerobic exercises for 8 weeks, 3 times weekly, and 30 minutes each session. The questionnaires which were used included: individual and midwifery characteristics, temporary diagnosis of syndrome, daily recording of syndrome symptoms, determination of the temperament, and Burg perceptual diagram. Using these questionnaires, the type of temperament, the severity of symptoms of premenstrual syndrome, and the effect of 8 weeks of aerobic exercise on symptoms of syndrome in two temperament were obtained. Data were analyzed by SPSS software (version 22), and descriptive statistics tests, Mann-Whitney, Chi-square and T-test. P<0.05 was considered significant. Results: In the intervention group in cold temperament, at the end of the study, all the physical and mental symptoms were less prevalent than the beginning of the study, so that the symptoms with severity of 3 had reached to zero; while in warm temperament, only confusion and worry had reached to zero, but all the physical symptoms and among the psychological symptoms, outbreak of anger, easy crying and tendency to be alone were less prevalent. Conclusion: The prevalence of the severity of physical and psychological symptoms of premenstrual syndrome after 8 weeks of regular aerobic exercise was more improved in cold temperament than warm temperament

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