Conditioning exercise decreases premenstrual symptoms
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Conditioning exercise decreased premenstrual symptoms during 3 months of a prospective controlled training study. Eight women with normal ovulatory menstrual cycles began a running exercise training programme while completing intensity-graded questionnaires concerning molimina. Six sedentary control women followed the same protocol for 3 months but did not exercise. Oral basal temperatures evaluated by mean temperature analysis were obtained for all cycles. Exercise distance and time, average exercise heart rate, basal and maximal heart rate and body weights were recorded prospectively and evaluated during the control (0) and 3rd month of the study. Mid-luteal phase progesterone and estrogen levels were sampled during the analyzed cycles for the exercise group.
Molimina did not change over 3 months time in the control group. The exercise group, after increasing distance run to 51.0±18.1 km/cycle at 3 months, showed decreases in overall molimina (scores on a 9-point scale) 6.5±1.8 to 3.5±0.9, p<0.01). Breast symptoms decreased from 8.3±0.7, p<0.005. Fluid symptoms also decreased from 7.3±1.8 to 5.5±0.9, p<0.025.
Menstrual cycle intervals, luteal lengths, body weights and mid-luteal estrogen and progesterone levels were normal and unchanged. Moderate exercise training without major weight, hormonal or menstrual cycle alteration significantly decreased premenstrual symptoms.
Key wordsExercise Premenstrual symptoms Molimina Basal temperature Gonadal steroids
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