Fluctuations in cardiac stroke volume during rowing

Preload to the heart may be limited during rowing because both blood pressure and central venous pressure increase when force is applied to the oar. Considering that only the recovery phase of the rowing stroke allows for unhindered venous return, rowing may induce large fluctuations in stroke volum...

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Bibliographic Details
Published in:Scandinavian journal of medicine & science in sports 2021-04, Vol.31 (4), p.790-798
Main Authors: Sejersen, Casper, Fischer, Mads, Mattos, João D., Volianitis, Stefanos, Secher, Niels H.
Format: Article
Language:English
Subjects:
arterial blood pressure
Blood Pressure - physiology
breathing
cardiac output
ergometer rowing
Healthy Volunteers
Heart rate
Humans
Male
Rowing
Stroke Volume - physiology
submaximal exercise
Vascular Resistance - physiology
Water Sports - physiology
Young Adult
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Summary:Preload to the heart may be limited during rowing because both blood pressure and central venous pressure increase when force is applied to the oar. Considering that only the recovery phase of the rowing stroke allows for unhindered venous return, rowing may induce large fluctuations in stroke volume (SV). Thus, the purpose of this study was to evaluate SV continuously during the rowing stroke. Eight nationally competitive oarsmen (mean ± standard deviation: age 21 ± 2 years, height 190 ± 9 cm, and weight 90 ± 10 kg) rowed on an ergometer at a targeted heart rate of 130 and 160 beats per minute. SV was derived from arterial pressure waveform by pulse contour analysis, while ventilation and force on the handle were measured. Mean arterial pressure was elevated during the stroke at both work rates (to 133 ± 10 [P 
ISSN:0905-7188
1600-0838
DOI:10.1111/sms.13901