Article

Poor mental health (MH) is common in chronic heart failure (CHF)
patients. No studies have reported a relation between MH status and objectively
measured physical activity (PA) in CHF patients. The study aim was to determine
self-reported MH-related differences associated with PA and target values of PA
for improved MH in CHF outpatients. METHODS: We divided 243 CHF outpatients (mean
age 57.1 years) into two groups according to MH assessed by Short Form-36 score:
high-MH (>/=68 points) group (n = 148) and poor-MH (<68 points) group (n = 95).
Average step count (steps) and energy expenditure on PA (EE) (kcal) per day for 1
week of PA were assessed by an accelerometer and compared between groups. PA
resulting in high MH was determined by the receiver-operating characteristic
(ROC) analysis. RESUlts: PA correlated positively with MH in all patients (steps:
r = 0.46, p < 0.001; EE: r = 0.43, p < 0.001). After adjusting for patient
characteristics, steps and EE were significantly lower in the poor-MH versus
high-MH group (5020.1 +/- 280.7 versus 7174.1 +/- 221.5 steps, p < 0.001; 133.9
+/- 10.8 versus 215.9 +/- 8.4 kcal, p < 0.001). Cut-off values of 5590.8 steps
and 141.1 kcal were determined as PA target values associated with improved MH.
CONCLUSIONS: Poor MH status may reduce PA. Attaining PA target values may improve
MH status of CHF outpatients.

Langue : ANGLAIS