Usefulness of yoga as cardiac rehabilitation in patients with heart failure

INTERVENTION: Sitting on a chair,three kinds of yoga of asana,pranayama and meditation on were carried out of a total of about 20 minutes. Analysis of electrocardiogram at resting position,standing upright,standing position and sitting before and after yoga practice. Measure electrocardiogram for 6 minutes before and after yoga. Coefficient of Variation on R‐R interval(CVRR)is analyzed by RR spectrum and the parasympathetic activity index(HF) and the sympathetic activity index(LF/HF),which are autonomic indexes, are measured. Sitting on a chair,watch DVD about 20 minutes. Analysis of electrocardiogram at resting position,standing upright,standing position and sitting before and after watch DVD. Measure electrocardiogram for 6 minutes before and after yoga. Coefficient of Variation on R‐R interval(CVRR)is analyzed by RR spectrum and the parasympathetic activity index(HF) and the sympathetic activity index(LF/HF),which are autonomic indexes, are measured. CONDITION: Heart failure PRIMARY OUTCOME: Autonomic function SECONDARY OUTCOME: Heart rate; Blood pressure INCLUSION CRITERIA: