title: Using the Human Activity Profile to Assess Functional Performance in Heart Failure.
abstract: OBJECTIVE
  To investigate (1) the validity of using the Human Activity Profile (HAP) in patients with heart failure (HF) to estimate functional capacity; (2) the association between the HAP and 6-Minute Walk Test (6MWT) distance; and (3) the ability of the HAP to differentiate between New York Heart Association (NYHA) functional classes.
  
  
  METHODS
  In a cross-sectional study, we evaluated 62 clinically stable patients with HF (mean age, 47.98 years; NYHA class I-III). Variables included maximal functional capacity as measured by peak oxygen uptake ((Equation is included in full-text article.)O2) using a cardiopulmonary exercise test (CPET), peak (Equation is included in full-text article.)O2 as estimated by the HAP, and exercise capacity as measured by the 6MWT.
  
  
  RESULTS
  The difference between the measured (CPET) and estimated (HAP) peak (Equation is included in full-text article.)O2 against the average values showed a bias of 2.18 mL/kg/min (P = .007). No agreement was seen between these measures when applying the Bland-Altman method. Peak (Equation is included in full-text article.)O2 in the HAP showed a moderate association with the 6MWT distance (r = 0.62; P < .0001). Peak (Equation is included in full-text article.)O2 in the HAP was able to statistically differentiate NYHA functional classes I, II, and III (P < .05).
  
  
  CONCLUSIONS
  The estimated peak (Equation is included in full-text article.)O2 using the HAP was not concordant with the gold standard CPET measure. On the contrary, the HAP was able to differentiate NYHA functional class associated with the 6MWT distance; therefore, the HAP is a useful tool for assessing functional performance in patients with HF.
authors.affiliation: Rehabilitation Sciences Graduate Program (Drs Ribeiro-Samora, Pereira, and Britto and Mss Vieira, Rodrigues, Carvalho, and Montemezzo), Department of Physical Therapy (Drs Pereira and Britto), and Division of Cardiology and Cardiovascular Surgery, University Hospital (Ms de Alencar), Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors.forename: Giane Amorim
authors.initials: GA
authors.lastname: Ribeiro-Samora
authors.forename: Danielle Aparecida Gomes
authors.initials: DA
authors.lastname: Pereira
authors.forename: Otávia Alves
authors.initials: OA
authors.lastname: Vieira
authors.forename: Maria Clara Noman
authors.initials: MC
authors.lastname: de Alencar
authors.forename: Roseane Santo
authors.initials: RS
authors.lastname: Rodrigues
authors.forename: Maria Luiza Vieira
authors.initials: ML
authors.lastname: Carvalho
authors.forename: Dayane
authors.initials: D
authors.lastname: Montemezzo
authors.forename: Raquel Rodrigues
authors.initials: RR
authors.lastname: Britto
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D017079:Exercise Tolerance; D005260:Female; D006304:Health Status; D006333:Heart Failure / Q000503:physiopathology*; D006802:Human Activities; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D011795:Surveys and Questionnaires; D000070857:Walk Test