Key result
Body fat >41% in obese older women is linked to lower peak HR and impaired recovery.
Why the study?
Does higher percent body fat impair heart rate response during and following exercise in obese older women?
Cross-Sectional (n=90)
Does higher percent body fat impair heart rate response during and following exercise in obese older women?
p-value: p=0.001
Higher percent body fat in obese older women is associated with impaired heart rate response during exercise and recovery, suggesting possible autonomic dysfunction.
May warrant caution in exercise testing of high-fat obese older women; leaves open whether fat reduction improves autonomic heart rate dynamics.
The aim of the present study was to compare differences in heart rate (HR) response during and following exercise in obese older women with different percent body fat levels. Ninety older, obese women aged 60-87 years participated in the study, were categorized, and enrolled to one of two groups based on a lower percent body fat (LPBF ≤ 41.10 %) or higher percent body fat (HPBF > 41.10 %) as measured by dual-energy x-ray absorptiometry. The peak HR during exercise and in the first and second minutes of recovery period were compared between groups. The HPBF group presented a lower peak HR during exercise (p = 0.001) and an impaired HR recovery (p = 0.001) when compared to LPBF group. The present study demonstrated that older women who were in exceedingly obese level have an impaired heart rate response during exercise and in the recovery period, indicating possible autonomic dysfunction.
No takes yet. Share an insight, caveat, or question.
Silva et al. (2017) conducted a cross-sectional in Obesity (n=90). Higher percent body fat (> 41.10 %) vs. Lower percent body fat (≤ 41.10 %) was evaluated on Peak HR during exercise and HR recovery (p=0.001). Higher percent body fat (>41.10%) in obese older women was associated with a lower peak heart rate during exercise (p=0.001) and impaired heart rate recovery (p=0.001) compared to lower body fat.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: