Paper Information

Journal:   BIOLOGICAL SCIENCES (DANISH-I ZISTI-I IRAN)   WINTER 2009 , Volume 3 , Number 4; Page(s) 55 To 62.
 
Paper: 

EFFECT OF MODE OF EXERCISE ON PULMONARY AND CARDIOVASCULAR RESPONSES IN EARLY FOLLICULAR AND LUTEAL PHASES OF ACTIVE AND INACTIVE FEMALES’ MENSTRUAL CYCLE

 
 
Author(s):  MOHSENZADEH M.*
 
* SCHOOL OF SPORT SCIENCE, KARAJ BRANCH, ISLAMIC AZAD UNIVERSITY, KARAJ, IRAN
 
Abstract: 
The aim of this study was to compare the effect of mode of exercise on pulmonary and cardiovascular responses to progressive intensity exercise during the early follicular and luteal phases of the menstrual cycle. Twenty healthy, trained women volunteered to participate in the study. The inactive group included of 20 students who didn’t taken part in any regular physical activities. Each group of participants was randomly classified in to two equal groups (treadmill; T and cycle ergometer; CE). An incremental graded exercise test (GXT) was conducted on a cycle ergometer (Astrand test) and treadmill (Bruse test) in the early follicular and luteal of menstrual phases until they were unable to continue. The participant performed an incremental bout of exercise on T and CE during their early follicular and luteal phases until they were exhausted. The luteal phase was determined by the level of progesterone, prolactin, FSH and LH hormones in serum samples. The pulmonary gas analyzer (K4B2) was applied to measure the, oxygen pulse (VO2/HR) in two phases. T-tests were performed to detect baseline differences across menstrual phases by mode of exercise. The results indicated no significant differences in maximal VO2/HR across the menstrual cycle of active and inactive females.
Additionally, the differences between average of VO2/HR were significant in mode of exercise in the inactive group (p<0.05) and there is not differences in active group. It seems that because of the physical depression during menstrual cycle, which is due to the female inactivity, the replacement of running with cycling, with the aim of making physical activity simpler and encouraging female to continue their activity during this time, is not recommendable in active female.
 
Keyword(s): PULMONARY CARDIOVASCULAR FITNESS, EARLY FOLLICULAR AND LUTEAL PHASE MENSTRUAL CYCLE, INCREMENTAL GRADED EXERCISE, OXYGEN PULSE
 
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