Lambert, C (2025) The impact of swimming duration on exercise-induced cardiac fatigue. Other thesis, Liverpool John Moores University.

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Abstract

Substantial research has been conducted on exercise induced cardiac fatigue (EICF), with multiple studies showing an acute negative impact on cardiac structure and/or function post prolonged exercise (Oxborough et al, 2010). Although the current literature has highlighted EICF in terrestrial based exercise over varying durations and intensities (Donaldson et al, 2019), little has been investigated around aquatic-based sport. Swimming is a popular sport which exposes the cardiac system to unique physiological challenges, such as changes in pressure and gravity, which may exacerbate the effects of EICF (Riding, 2016). This study aimed to observe the impact a 30min and 60min moderate intensity swim had on cardiac structure and function and how the changes were comparable to the current literature. The results found evidence of reduced function in both ventricles post exercise with LVGLS and RVGLS reducing by 2.4% and 2.3% post 30min swim respectively, comparable to that observed after much longer durations of land-based exercises (Oxborough et al, 2011). The reduction in function appears to be caused by an overall reduction in ventricular filling as no evidence of myocardial fatigue was present in either ventricle.

Item Type:	Thesis (Other)
Subjects:	R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions:	Sport and Exercise Sciences
SWORD Depositor:	A Symplectic
Date Deposited:	19 Mar 2025 10:40
Last Modified:	19 Mar 2025 10:41
DOI or ID number:	10.24377/LJMU.t.00025747
URI:	https://researchonline.ljmu.ac.uk/id/eprint/25747

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