Modest weight loss in moderately overweight postmenopausal women improves heart rate variability
Key result
A 12-week dietary weight-loss program in overweight postmenopausal women significantly improved heart rate variability, including a 9.2% increase in SDNN (p=0.003).
Why the study?
Does a 12-week dietary weight-loss programme improve heart rate variability in overweight postmenopausal women?
Population
49 overweight postmenopausal women with an average body mass index of 28.8 ± 1.9 kg/m2
Design
Cohort
Follow-up
12 weeks
Authors
Discussion
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Member takes
Implication
May support short-term autonomic benefits from dietary weight loss in overweight postmenopausal women; leaves open confirmation in randomized outcome trials.
Study Design
Type
Cohort (n=49)
Structured PICO
Does a 12-week dietary weight-loss programme improve heart rate variability in overweight postmenopausal women?
P
Population
49 overweight postmenopausal women who underwent a 12-week dietary weight-loss programme.
I
Intervention
12-week dietary weight-loss programme
O
Outcome
Heart rate (HR) and heart rate variability (HRV) parameters (MeanNN, SDNN, and SDNNindex) measured by 24-h ambulatory ECG monitoringsurrogate
Main Result
Effect estimate: 9.2% increase
p-value: p=0.003
Modest weight loss achieved through a 12-week dietary program significantly improves heart rate variability and reduces cardiovascular risk markers in overweight postmenopausal women.
Cite This Study
Mouridsen et al. (2012) conducted a cohort in Overweight (n=49). Dietary weight-loss programme vs. Baseline (pre-intervention) was evaluated on Heart rate variability (SDNN) (9.2% increase, p=0.003). A 12-week dietary weight-loss program in overweight postmenopausal women significantly improved heart rate variability, including a 9.2% increase in SDNN (p=0.003).