The purpose of the present study was to examine, the effect of menstrual
cycle on substrate metabolism during exhaustive incremental exercise in girl
students. Materials and Methods: This study was done on 15 girls students
(age=21.17±1.47 year, BMI=20.55±1.71kg/m2) who participated volunteerily.
It has a crossover design and that is adjusted in three stages: bleeding,
follicular and the late luteal of the menstrual cycle. Protocol exercise was
increamental until exhaustion stage. Subject gas respiration was measured 30
minutes before exercise in lying position, during exhaustion incremental
protocol and an hour after exercise which the last time measure was used as
EPOC. Fat and carbohydrate oxidation and energy expenditure was
measured by indirect calorimetery. To analyze data ANOVA with repeated
measure and descriptive statistics were done. The result showed no
significant differences in energy expenditure, performance, fat and
carbohydrate oxidation in different stages of the menstrual cycle (bleeding,
follicular and luteal) during exhaustive incremental exercise. An
increamental exersiae, calories and carbs and fat oxidation in the bleeding
stage, early follicular and late luteal probably due to the large no difference
between the hormones estrogen and progesterone concentrations are not
significantly different in young girls.
Keywords: exhaustive incremental exercise, menstrual
The purpose of the present study was to examine, the effect of menstrualcycle on substrate metabolism during exhaustive incremental exercise in girlstudents. Materials and Methods: This study was done on 15 girls students(age=21.17±1.47 year, BMI=20.55±1.71kg/m2) who participated volunteerily.It has a crossover design and that is adjusted in three stages: bleeding,follicular and the late luteal of the menstrual cycle. Protocol exercise wasincreamental until exhaustion stage. Subject gas respiration was measured 30minutes before exercise in lying position, during exhaustion incrementalprotocol and an hour after exercise which the last time measure was used asEPOC. Fat and carbohydrate oxidation and energy expenditure wasmeasured by indirect calorimetery. To analyze data ANOVA with repeatedmeasure and descriptive statistics were done. The result showed nosignificant differences in energy expenditure, performance, fat andcarbohydrate oxidation in different stages of the menstrual cycle (bleeding,follicular and luteal) during exhaustive incremental exercise. Anincreamental exersiae, calories and carbs and fat oxidation in the bleedingstage, early follicular and late luteal probably due to the large no differencebetween the hormones estrogen and progesterone concentrations are notsignificantly different in young girls.Keywords: exhaustive incremental exercise, menstrual
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