Relationship between adiposity and heart rate recovery following an exercise stress test in obese older women

Abstract

-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 =.001) and an impaired HR recovery (p =.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.Key words: Aging; Obesity; Heart rate. Resumo -O objetivo do presente estudo foi comparar a reposta da frequência cardíaca (FC) durante e após um teste de esforço entre mulheres idosas obesas com diferentes níveis de percen

Increasing Age, Diabetes Mellitus and Beta Blocker Influence Heart Rate Recovery Values in Patients Undergoing Exercise Treadmill Test

“…2,9 Nondihydropyridine CCB, and beta blockers can reduce HRR after exercise. 12 Exercise treadmill test results showed a positive ischemic response in normal HRR greater than the abnormal group. This data different from previous studies where more positive ischemic responses were found in abnormal HRR.…”

<p>Relation Between Relative Handgrip Strength, Chronological Age and Physiological Age with Lower Functional Capacity in Older Women</p>

“…Exercise testing procedures in the laboratory have been described in detail elsewhere from our research group 24,25. Subjects underwent a symptom-limited treadmill test using a ramp-treadmill protocol.…”

“…The initial and final velocity was 3.0 km/h and 6.0 km/h, respectively, while the initial and final grade was 1.0% and 14.0%. Subjects were encouraged to exercise until voluntary-exhaustion, and the achievement of 85% of maximum predicted HR and/or respiratory exchange ratio >1.02 was used for the termination of testing 24,25. During each exercise stage and recovery stage, symptoms (chest discomfort, rate of perceived exertion, and dizziness), blood pressure, and heart rate were recorded.…”