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Effects of menstrual cycle on vagal reactivation in post-exercise recovery among young black African women
To investigate, in young black African women, the influence of estradiol and progesterone on vagal reactivation in post-exercise recovery. Fourteen young black African women, volunteers (24±1.7 years), with a regular menstrual cycle (28±1 days) were explored during the three phases of menstrual cycl...
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Published in: | Science & sports 2014-09, Vol.29 (4), p.196-202 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
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Online Access: | Get full text |
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Summary: | To investigate, in young black African women, the influence of estradiol and progesterone on vagal reactivation in post-exercise recovery.
Fourteen young black African women, volunteers (24±1.7 years), with a regular menstrual cycle (28±1 days) were explored during the three phases of menstrual cycle (menstrual 2.9±0.6 days, follicular 13±1.5 days and luteal 23.1±1.4 days). At each phase, a venous sample was taken to determine estradiol and progesterone levels and then an exercise test was made with an active recovery for threeminutes and then passive for 3minutes. Exercise and recovery of our protocol are used in our practice to assess the physical fitness.
Estradiol is significantly higher during the follicular phase and progesterone is significantly greater in the luteal phase. During the sixminutes of recovery, heart rate (HR), heart rate recovery in absolute value (HRR) and as a percentage of peak heart rate at exercise (HRR%), differences between heart rate at the end of active recovery (3rd minute) and at each minute of passive recovery in absolute value (ΔHR) and as a percentage of heart rate of the third minute (ΔHR%) were not different between the 3 phases of the menstrual cycle. There was no correlation between HRR%, ΔHR% and ovarian hormones.
Déterminer, chez la jeune femme noire africaine, l’influence de l’œstradiol et de la progestérone sur la réactivation vagale en récupération post-exercise.
Quatorze jeunes femmes noires africaines, volontaires (24±1,7ans) ayant un cycle menstruel régulier (28±1jours), ont été explorées au cours de trois phases de leur cycle menstruel (menstruelle à 2,9±0,6jours, folliculaire à 13±1,5jours et lutéale à 23,1±1,4jours). À chaque phase, elles ont réalisé un prélèvement veineux pour le dosage de l’œstradiol et de la progestérone et un test d’effort à puissance croissante avec une période de récupération active à puissance modérée (40,36±2,37 watts) pendant 3minutes puis passive pendant 3minutes.
L’œstradiol était significativement plus élevé en phase folliculaire et la progestérone était significativement plus élevée en phase lutéale. Au cours des 6minutes de récupération, la fréquence cardiaque (FC), la fréquence cardiaque de récupération exprimée en valeur absolue (FCR) et en pourcentage de la fréquence cardiaque pic à l’exercice (FCR%), les différences entre la fréquence cardiaque à la 3e minute de récupération et chacune des fréquences cardiaques en récupération passive exprimées en valeur absolue (ΔFR) et |
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ISSN: | 0765-1597 |
DOI: | 10.1016/j.scispo.2014.04.001 |