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Fitter Women Did Not Have Attenuated Hemodynamic Responses to Psychological Stress Compared with Age-Matched Women with Lower Levels of Fitness

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  • Sisitha U Jayasinghe
  • Susan J Torres
  • Mais Hussein
  • Steve F Fraser
  • Gavin W Lambert
  • Anne I Turner

Abstract

According to the ‘cross stressor adaptation hypothesis’, regular exercise acts as a buffer against the detrimental effects of stress. Nevertheless, evidence that higher levels of cardiorespiratory fitness moderate hemodynamic responses to acute psychological stress is inconclusive, especially in women. Women aged 30–50 years (in the mid-follicular phase of the menstrual cycle) with higher (n = 17) and lower (n = 17) levels of fitness were subjected to a Trier Social Stress Test (TSST). Continuous, non-invasive measurements were made of beat-to-beat, systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), stroke volume (SV), cardiac output (CO), left ventricular ejection time (LVET), maximum slope, pulse interval (PI) and total peripheral resistance (TPR). Maximal oxygen consumption was significantly (p

Suggested Citation

  • Sisitha U Jayasinghe & Susan J Torres & Mais Hussein & Steve F Fraser & Gavin W Lambert & Anne I Turner, 2017. "Fitter Women Did Not Have Attenuated Hemodynamic Responses to Psychological Stress Compared with Age-Matched Women with Lower Levels of Fitness," PLOS ONE, Public Library of Science, vol. 12(1), pages 1-18, January.
    • Handle: RePEc:plo:pone00:0169746
    DOI: 10.1371/journal.pone.0169746
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