Abstract
Determination of Ventilatory Threshold using Heart Rate Variability in Patients with Heart Failure
Highlights
Aging-related cardiac remodeling predisposes elderly patients to heart disease
A marked RMSSD and HF power (HFp) deflection points were found in the region of VT1, and were identified as Variability Heart Rate Thresholds (HRVT)
No significant difference was found between VT1 and both Heart Rate Variability Threshold (HRVT) (p
Summary
Aging-related cardiac remodeling predisposes elderly patients to heart disease. Significant growth in the elderly population (age ≥ 65 years) with Heart Failure (HF) has taken place in developed countries and is occurring in most developing countries [1]. Current management options for HF included primary [3] and secondary preventions [4]. In the latter, exercise rehabilitation has the potential to increase exercise performance and improve the quality of life of HF patients with or without associated pathologies [5]. A multicenter, randomized controlled trial among 2331 HF patients (left ventricular ejection fraction ≤ 0.35) showed a modest significant improvement in self-reported health status with aerobic exercise training compared with usual care without exercise training [6]. The first Ventilatory Threshold (VT1) has been shown to assess exercise tolerance and help in the exercise rehabilitation prescription of Chronic Heart Failure patients (CHF). Previous investigations revealed that the assessment from Heart Rate Variability (HRV) analysis gives an accurate estimation of VT1 in trained subjects
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