Why the study?
Strenuous aerobic exercise sessions in healthy individuals can lead to cardiac damage, prompting an investigation into the effects of swimming to exhaustion on cardiomyocyte contraction, relaxation, and calcium kinetics.
Does an acute session of swimming until exhaustion alter contraction and relaxation velocities in cardiomyocytes isolated from Wistar rats?
Population
Wistar rats aged 16 weeks
Comparison
Swimming until exhaustion with a load of 5% body weight
Design
Preclinical experimental study
Authors
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Acute exhaustive swimming increases rat myocyte contraction and calcium velocities; leaves open human relevance and mechanisms.
Does an acute session of swimming until exhaustion alter contraction and relaxation velocities in cardiomyocytes isolated from Wistar rats?
Acute exhaustive swimming in rats alters cardiomyocyte mechanics by increasing contraction, relaxation, and calcium release velocities, suggesting potential myocardial stress.
Teles et al. (2022) studied this question.
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