Key result
A 6-week swimming exercise regimen induced left ventricular hypertrophy in 100% of rats exercising for 60 minutes daily and 57% of rats exercising for 40 minutes daily, compared to none in controls.
Why the study?
The study was conducted to assess the quality of left ventricular hypertrophy and micro- and macro-structural cardiac parameters in 10-11-week-old rats following a 6-week dosed swimming load.
Population
10-11 week-old rats divided into three groups of n=7
Comparison
Daily swimming loads (40 min with 2% weight or 60 min with 4% weight) vs control with no load
Follow-up
6 weeks
Authors
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Offers a rat model for exercise-induced LVH; leaves open translation to humans.
A 6-week dosed swimming load in rats effectively induces left ventricular hypertrophy proportional to exercise intensity and duration, providing a model for studying myocardial remodeling.
Gogiberidze et al. (2022) studied Physiological left ventricular hypertrophy (n=21). Swimming exercise vs. No exercise was evaluated on Development of left ventricular hypertrophy. A 6-week swimming exercise regimen induced left ventricular hypertrophy in 100% of rats exercising for 60 minutes daily and 57% of rats exercising for 40 minutes daily, compared to none in controls.