<qa>  What is the Kruskal-Wallis analysis of variance by ranks?Statistical analyses will be conducted to meet the planned study objectives. With regard to intervention effects, one way analysis of variance with planned contrasts will be used to examine between-group differences for each of the continuous variables Patient Activity, Kansas City Cardiomyopathy Questionnaire KCCQ, Patient Health Questionnaire PHQ-9, six-minute walk test 6MWT, 30 second timed chair rise 30-s TCR, heart rate variability, Optivol Fluid Index. If the data do not meet the requisite assumptions, the Kruskal-Wallis analysis of variance by ranks will be used. Baseline to 3 months data will be used to assess immediate intervention effects and to 9 month follow-up will be used to assess retention effects. 