Key result
Impaired chronotropic competence (heart rate reserve <30 bpm, heart rate recovery <6 bpm, peak heart rate <101 bpm) predicted poor response to exercise training in CHF patients with sinus rhythm.
Why the study?
Does chronotropic incompetence predict impaired response to a 3-month outpatient cardiac rehabilitation programme in chronic heart failure patients with sinus rhythm?
Population
120 consecutive chronic heart failure patients with sinus rhythm, mean age 57 ± 12 years, ejection fraction…
Design
Cohort
Follow-up
3 months
Authors
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May identify non-responders to cardiac rehab in sinus-rhythm CHF; hypothesis-generating pending randomized trials.
Cohort (n=120)
Does chronotropic incompetence predict impaired response to a 3-month outpatient cardiac rehabilitation programme in chronic heart failure patients with sinus rhythm?
Impaired chronotropic competence (low HR reserve, HR recovery, and peak HR) strongly predicts failure to improve exercise capacity after a 3-month cardiac rehabilitation program in heart failure patients.
Schmid et al. (2012) conducted a cohort in chronic heart failure with sinus rhythm (n=120). outpatient cardiac rehabilitation programme was evaluated on Response to exercise training (improved peak VO2 >5%, work load >10%, or VE/VCO2 slope >5%). Impaired chronotropic competence (heart rate reserve <30 bpm, heart rate recovery <6 bpm, peak heart rate <101 bpm) predicted poor response to exercise training in CHF patients with sinus rhythm.
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