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Cardiorespiratory response to exercise in endurance-trained premenopausal and postmenopausal females.
Rael, Beatriz; Barba-Moreno, Laura; Romero-Parra, Nuria; Alfaro-Magallanes, Víctor M; Castro, Eliane A; Cupeiro, Rocío; Peinado, Ana B.
Afiliación
  • Rael B; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain.
  • Barba-Moreno L; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain. laurabarbamoreno91@gmail.com.
  • Romero-Parra N; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain.
  • Alfaro-Magallanes VM; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain.
  • Castro EA; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain.
  • Cupeiro R; Department of Sports Sciences and Physical Conditioning, Faculty of Education, Universidad Católica de La Santísima Concepción, Concepción, Chile.
  • Peinado AB; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Martín Fierro, 28040, Madrid, Spain.
Eur J Appl Physiol ; 121(3): 903-913, 2021 Mar.
Article en En | MEDLINE | ID: mdl-33389018
PURPOSE: To assess the influence of different hormonal profiles on the cardiorespiratory response to exercise in endurance-trained females. METHODS: Forty-seven eumenorrheic females, 38 low-dose monophasic oral contraceptive (OC) users and 13 postmenopausal women, all of them endurance-trained, participated in this study. A DXA scan, blood sample tests and a maximal aerobic test were performed under similar low-sex hormone levels: early follicular phase for the eumenorrheic females; withdrawal phase for the OC group and at any time for postmenopausal women. Cardiorespiratory variables were measured at resting and throughout the maximal aerobic test (ventilatory threshold 1, 2 and peak values). Heart rate (HR) was continuously monitored with a 12-lead ECG. Blood pressure (BP) was measured with an auscultatory method and a calibrated mercury sphygmomanometer. Expired gases were measured breath-by-breath with the gas analyser Jaeger Oxycon Pro. RESULTS: One-way ANCOVA reported a lower peak HR in postmenopausal women (172.4 ± 11.7 bpm) than in eumenorrheic females (180.9 ± 10.6 bpm) (p = 0.024). In addition, postmenopausal women exhibited lower VO2 (39.1 ± 4.9 ml/kg/min) compared to eumenorrheic females (45.1 ± 4.4 ml/kg/min) in ventilatory threshold 2 (p = 0.009). Nonetheless, respiratory variables did not show differences between groups at peak values. Finally, no differences between OC users and eumenorrheic females' cardiorespiratory response were observed in endurance-trained females. CONCLUSIONS: Cardiorespiratory system is impaired in postmenopausal women due to physiological changes caused by age and sex hormones' decrement. Although these alterations appear not to be fully compensated by exercise, endurance training could effectively mitigate them. In addition, monophasic OC pills appear not to impact cardiorespiratory response to an incremental running test in endurance-trained females.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ejercicio Físico / Capacidad Cardiovascular / Entrenamiento Aeróbico Límite: Adult / Female / Humans / Middle aged Idioma: En Revista: Eur J Appl Physiol Asunto de la revista: FISIOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ejercicio Físico / Capacidad Cardiovascular / Entrenamiento Aeróbico Límite: Adult / Female / Humans / Middle aged Idioma: En Revista: Eur J Appl Physiol Asunto de la revista: FISIOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania