Cardiac remodeling after six weeks of high-intensity interval training to exhaustion in endurance-trained men
Why the study?
High-intensity interval training improves physical performance in endurance athletes, but studies examining its cardiovascular effects are sparse.
Does 6 weeks of high-intensity interval training alter blood pressure and cardiac remodeling in endurance-trained men?
Population
17 endurance-trained men
Comparison
HIIT at 85% vs 115% maximal aerobic power
Follow-up
6 wk
Authors
Discussion
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Member takes
Implication
May alter BP or cardiac parameters in trained athletes; leaves open effects pending controlled trials.
Structured PICO
Does 6 weeks of high-intensity interval training alter blood pressure and cardiac remodeling in endurance-trained men?
P
Population
17 endurance-trained men
I
Intervention
6 weeks of high-intensity interval training (HIIT) at either 85% (n=8) or 115% (n=9) maximal aerobic power
C
Comparator
Baseline measurements (pre-training)
O
Outcome
Blood pressure, heart rate, and cardiac cavities' size and function measured by 24-h ambulatory blood pressure monitoring and Doppler echocardiographysurrogate
Six weeks of high-intensity interval training in endurance-trained men reduces blood pressure but induces cardiac remodeling, including increased left atrial volumes and potential right ventricular systolic dysfunction at submaximal intensities.
Cite This Study
Mahjoub et al. (2019) studied this question.