Correlation Engine 2.0
Clear Search sequence regions


  • breath (7)
  • cardiac output (2)
  • heart rate (3)
  • humans (1)
  • lactic acid (2)
  • oxygen (2)
  • phase (1)
  • stroke (5)
  • Sizes of these terms reflect their relevance to your search.

    Eight well-trained male cyclists participated in two testing sessions each including two sets of 10 cycle exercise bouts at 150% of maximal aerobic power. In the first session, subjects performed the exercise bouts with end-expiratory breath holding (EEBH) of maximal duration. Each exercise bout started at the onset of EEBH and ended at its release (mean duration: 9.6±0.9 s; range: 8.6-11.1 s). At the second testing session, subjects performed the exercise bouts (same duration as in the first session) with normal breathing. Heart rate, left ventricular stroke volume (LVSV), and cardiac output were continuously measured through bio-impedancemetry. Data were analysed for the 4 s preceding and following the end of each exercise bout. LVSV (peak values: 163±33 vs. 124±17 mL, p<0.01) was higher and heart rate lower both in the end phase and in the early recovery of the exercise bouts with EEBH as compared with exercise with normal breathing. Cardiac output was generally not different between exercise conditions. This study showed that performing maximal EEBH during high-intensity exercise led to a large increase in LVSV. This phenomenon is likely explained by greater left ventricular filling as a result of an augmented filling time and decreased right ventricular volume at peak EEBH. Thieme. All rights reserved.

    Citation

    Xavier Woorons, Frederic Lemaitre, Guido Claessen, Cloé Woorons, Henri Vandewalle. Exercise with End-expiratory Breath Holding Induces Large Increase in Stroke Volume. International journal of sports medicine. 2021 Jan;42(1):56-65

    Expand section icon Mesh Tags

    Expand section icon Substances


    PMID: 32842157

    View Full Text