A given to patient. Both walking distances

A study by Corvera-Tindel et al (2004) discussed the effects of a 12 weeks, low-intensity (40%-65%)home walking exercise program(HWE) for HF patient on functional status (exercise capacity and functional performance)and symptoms (dyspnea and fatigue). All patients (n=79)were randomized into the training group (n =42) underwent HWE training, and the control group (n = 37). Time and distance walked were recorded by a pedometer given to patient. Both walking distances measured by the 6-minute walk test and post global rating of symptoms were improved, when compared with a no-exercise control. The limitation of this study included that research assistants conducted the 6-MWT were not blinded to the subgroups.

They should be blinded to treatment allocation to minimise possible bias in assessing outcome measures. There were also minor clinical events such as flu, effects of comorbidities interrupted the 51.4% patients in the training program. The compliance rates progressively decreased from 81% in the 5th week to 65% to 71% in the last 6 weeks. Low compliance rate may have affected the training effects on peak Vo2.

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