Key result
Higher weekly physical activity (≥1,500 Kcal) in older female adults was significantly associated with superior parasympathetic activity (Norm HF 0.560 vs 0.390 ms², p=0.004) and physical fitness compared to low activity (<1,000 Kcal).
Why the study?
This study examined the effectiveness of an active lifestyle on heart rate variability and fitness in older female adults.
Does higher physical activity improve heart rate variability and fitness in older female adults?
Cross-Sectional (n=80)
No
Does higher physical activity improve heart rate variability and fitness in older female adults?
Absolute Event Rate: 0.56% vs 0.39%
p-value: p=0.004
Higher weekly physical activity (≥1,500 Kcal) is associated with improved heart rate variability parameters in older female adults.
Supports activity counseling in older women; extends observational HRV links but leaves causality open.
PURPOSE: This study examined the effectiveness of an active lifestyle on the HRV and fitness of the older female adults. METHODS: Eighty female older adults (72.683.78 years) were sampled from a senior wellness institute. Accelerometers were distributed to each participant to have the device attached to them for one week, and the physical activity data (Energy expenditure in Kcal) of each participant were analyzed. Participants were divided into 3 groups (<1,000 Kcal vs 1,000 to 1,500 Kcal vs 1,500 Kcal) based on the amount of weekly physical activity. Before and after data analysis, the HRV was measured at resting state and the Senior Fitness Test was performed. RESULTS: One way ANOVA showed a significant difference in the HRV between the three groups. Group A ( 1,500 Kcal) was superior in HF and HF/HF + LF whereas Group C (<1,000 Kcal) showed high level of LF, LF/HF, Corresponding
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Ok et al. (2019) conducted a cross-sectional in Healthy older adults (n=80). High physical activity (≥1,500 Kcal/week) vs. Low physical activity (<1,000 Kcal/week) was evaluated on Heart Rate Variability (Norm HF) (p=0.004). Higher weekly physical activity (≥1,500 Kcal) in older female adults was significantly associated with superior parasympathetic activity (Norm HF 0.560 vs 0.390 ms², p=0.004) and physical fitness compared to low activity (<1,000 Kcal).
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