Factors Relating to 6 Minute Walk Performance in Heart Failure Patients
Reliable, responsive, and valid testing techniques are important in assessing symptoms, left ventricular function, and response to therapy in patients with congestive heart failure (CHF). Although left ventricular ejection fraction and New York Heart Association functional classification are valid mesures of left ventricular function and symptoms, respectively, they may be relatively insensitive to changes in patient performance. The 6 min walk (6MW) is a simple, inexpensive, and safe test of functional capacity. Patients, regardless of the severity of their heart failure, can perform the 6MW. The test is performed by having patients walk a 33 meter course for 6 min, and at the end of the allotted time the total distance covered is measured. Studies have demonstrated that the 6MW is a reproducible and valid assessment of functional capacity in patients with CHF. The 6MW performance has also been demonstrated to be an independent predictor of mortality and morbidity in heart failure patients. Therefore, the 6MW is useful for the clinical assessment of heart failure patients and, because of ease of administration, can be used in large clinical trials to assess the effects of therapy for these patients.
KeywordsHeart Failure Patient Congestive Heart Failure Patient Knee Extensor Strength Functional Status Questionnaire Cycle Ergometry Testing
Unable to display preview. Download preview PDF.
- 1.Bittner V, Weiner DH, Yusuf S, Rogers WJ, Mclntyre KM, Bangdiwala SI, Kronenberg MW, Kostis JB, Kohn RM, Guillotte M, Greenberg B, Woods PA, Bourassa MG. Prediction of mortality and morbidity with a 6-minute walk test in patients with left ventricular dysfunction. JAMA 270:1702–1707, 1993.PubMedCrossRefGoogle Scholar
- 5.Guyatt G. Use of the six-minute walk test as an outcome measure in clinical trials in chronic heart failure. Heart Failure 3:211–217, 1987.Google Scholar
- 9.Guyatt GH, Sullivan MJ, Thompson PJ, Fallen EL, Pugsley SO, Taylor DW, Berman LB. The 6-minute walk: A new measure of exercise capacity in patients with chronic heart failure. CMAJ 132:919–923, 1985.Google Scholar
- 13.Gorkin L, Norvell NK, Rosen RC, Charles E, Shumaker SA, Mclntyre KM, Capone RJ, Kostis J, Niaura R, Woods P, Hosking J, Garces C, Handberg E, Ahern DK, Follick MJ. Assessment of quality of life as observed from the baseline data of the studies of left ventricular dysfunction (SOLVD) trial quality of life substudy. Am J Cardiol 71:1069–1073, 1993.PubMedCrossRefGoogle Scholar
- 16.Baigrie RS, Myers MG, Kavanagh T, Guyatt G. Benefits of physical training in patients with heart failure. Can J Cardiol 8(Suppl B):107B, 1992.Google Scholar