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KMID : 1211620190140040133
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Journal of the Korean Society of Physical Medicine
2019 Volume.14 No. 4 p.133 ~ p.142
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Effects of Physical Activity on the Heart Rate Variability and Fitness in Older Female Adults
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Ok Hyun-Tae
Joo Kee-Chan
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Abstract
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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 (72.68±3.78 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, and LF/HF+LF. The same statistics revealed significant differences in fitness. Most of the fitness variables were superior in Group A and B compared to Group C. Significant correlations were observed between physical activity and both HRV and in fitness.
CONCLUSION: Theses results suggest that an active lifestyle may be an effective intervention for the prevention of both cardiometabolic disorder and improvement of the fitness level in older female adults.
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KEYWORD
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Older Female Adult, Physical Activity, HRV, Fitness
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