Changes in peak expiratory flow and respiratory strength during the menstrual cycle
This study evaluated the spirometry and respiratory static pressures in 17 young women, twice a week for three successive ovulatory menstrual cycles to determine if such variables changed across the menstrual, follicular, periovulatory, early-tomid luteal and late luteal phases. The factors phases...
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| Principais autores: | , , |
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| Formato: | article |
| Idioma: | por |
| Publicado em: |
Respiratory Physiology & Neurobiology
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| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/1/2932 |
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| Resumo: | This study evaluated the spirometry and respiratory static pressures in 17 young women, twice a week for three successive
ovulatory menstrual cycles to determine if such variables changed across the menstrual, follicular, periovulatory, early-tomid
luteal and late luteal phases. The factors phases of menstrual cycle and individual cycles had no significant effect on the
spirometry variables except for peak expiratory flow (PEF) and respiratory static pressures. Significant weak positive correlations were found between the progesterone:estradiol ratio and PEF and between estrogen and tidal volume (r = 0.37), inspiratory time (r = 0.22), expiratory time (r = 0.19), maximal inspiratory pressure (r = 0.25) and maximal expiratory pressure (r = 0.20) and for
progesterone and maximal inspiratory pressure (r = 0.32) during the early-to-mid luteal phase. Although most parameters of the
spirometry results did not change during the menstrual cycle, the correlations observed between sexual hormones and respiratory
control variables suggest a positive influence of sexual female hormones controlling the thoracic pump muscles in the luteal phase |
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