Why the study?
To investigate the influence of different exercise training modalities on heart rate variability in sedentary middle-aged adults, and whether associated health-related outcome changes relate to these heart rate variability changes.
Does exercise training (PAR, HIIT, or HIIT+EMS) improve heart rate variability in sedentary middle-aged adults?
Population
66 middle-aged adults (53.6 ± 4.4 years old; 50% women)
Comparison
WHO physical activity recommendations vs HIIT vs HIIT plus electromyostimulation vs no-exercise control
Design
Randomized controlled trial
Follow-up
12 weeks
Authors
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Supports recommending any 12-week exercise modality to improve HRV in sedentary adults; confirms comparable autonomic benefits across PAR, HIIT, and HIIT+EMS.
Does exercise training (PAR, HIIT, or HIIT+EMS) improve heart rate variability in sedentary middle-aged adults?
Different 12-week exercise modalities (PAR, HIIT, and HIIT+EMS) similarly improve resting heart rate variability and cardiometabolic risk in sedentary middle-aged adults.
Navarro‐Lomas et al. (2022) studied this question.
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