Variability in Physical Activity Assessed with Accelerometer Is an Independent Predictor of Mortality in CHF Patients.

ABSTRACT:

Aims

Patients with heart failure often display a distinct pattern of walking characterized by short step-length and frequent short pauses. In the current study we sought to explore if qualitative aspects of movement have any additive value to established factors to predict all-cause mortality in patients with advanced heart failure.

Methods and results

60 patients with advanced heart failure (NYHA III, peak VO2 <20 ml/kg and LVEF <35%) underwent symptom-limited CPX, echocardiography and routine chemistry. Physical activity was assessed using an accelerometer worn attached to the waist during waking hours for 7 consecutive days. The heart-failure survival score (HFSS) was calculated for each patient. All accelerometer-derived variables were analyzed with regard to all-cause m

SUBMITTER: Melin M 

PROVIDER: S-EPMC4824362 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature