PMID- 15375829
OWN - NLM
STAT- MEDLINE
DCOM- 20041019
LR  - 20220321
IS  - 0003-9993 (Print)
IS  - 0003-9993 (Linking)
VI  - 85
IP  - 9
DP  - 2004 Sep
TI  - The two-minute walk test as a measure of functional capacity in cardiac surgery 
      patients.
PG  - 1525-30
AB  - OBJECTIVE: To examine construct validity and sensitivity of the two-minute walk 
      test (2MWT) in cardiac surgery patients. DESIGN: Measurements were made in 
      patients preoperatively, during the postoperative in-hospital stay, and 6 to 8 
      weeks after discharge from hospital. SETTING: Ambulatory and hospitalized care. 
      PARTICIPANTS: Patients (N=122; mean age +/- standard deviation, 63+/-9 y) 
      undergoing coronary artery bypass grafting. INTERVENTIONS: Not applicable. MAIN 
      OUTCOME MEASURES: The 2MWT, New York Heart Association (NYHA) functional 
      classification for cardiac disease, the Nottingham Extended Activities of Daily 
      Living scale, and the Medical Outcomes Survey 36-Item Short-Form Health 
      Questionnaire (SF-36). RESULTS: Distance walked in 2 minutes decreased 
      significantly postoperatively (from 138+/-26 m to 84+/-33 m, P<.001), but 
      increased again at follow-up (151+/-31 m, P<.0001). Distance walked on the 2MWT 
      correlated significantly to SF-36 (physical function subscale) preoperatively 
      (r=.44) and at follow-up (r=.48) (P<.001). There was a significant difference in 
      distance walked between those with NYHA class I and II compared with those 
      classified as III or IV (P=.04). However, there was no significant difference in 
      distance walked in 2 minutes between those who developed cardiac or pulmonary 
      complications postoperatively (P> or =0.2). CONCLUSIONS: The 2MWT was sensitive 
      to change after cardiac surgery and showed moderate correlation with measures of 
      physical functioning in this population. However, the 2MWT could not identify 
      those who developed complications in the postoperative period.
FAU - Brooks, Dina
AU  - Brooks D
AD  - Department of Physical Therapy, University of Toronto, ON, Canada. 
      dina.brooks@utoronto.ca
FAU - Parsons, Janet
AU  - Parsons J
FAU - Tran, Diem
AU  - Tran D
FAU - Jeng, Bonnie
AU  - Jeng B
FAU - Gorczyca, Barbara
AU  - Gorczyca B
FAU - Newton, Janet
AU  - Newton J
FAU - Lo, Vincent
AU  - Lo V
FAU - Dear, Cheryl
AU  - Dear C
FAU - Silaj, Ellen
AU  - Silaj E
FAU - Hawn, Therese
AU  - Hawn T
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
PL  - United States
TA  - Arch Phys Med Rehabil
JT  - Archives of physical medicine and rehabilitation
JID - 2985158R
SB  - IM
MH  - *Activities of Daily Living
MH  - Aged
MH  - Analysis of Variance
MH  - *Coronary Artery Bypass/adverse effects
MH  - Cross-Sectional Studies
MH  - Discriminant Analysis
MH  - Exercise Test/*methods/standards
MH  - Feasibility Studies
MH  - Female
MH  - Follow-Up Studies
MH  - Heart Diseases/classification/*diagnosis/physiopathology/surgery
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Physical Fitness
MH  - Postoperative Care/*methods/standards
MH  - Preoperative Care
MH  - Sensitivity and Specificity
MH  - Severity of Illness Index
MH  - Surveys and Questionnaires
MH  - Time Factors
MH  - Treatment Outcome
MH  - *Walking
EDAT- 2004/09/18 05:00
MHDA- 2004/10/20 09:00
CRDT- 2004/09/18 05:00
PHST- 2004/09/18 05:00 [pubmed]
PHST- 2004/10/20 09:00 [medline]
PHST- 2004/09/18 05:00 [entrez]
AID - S0003-9993(04)00280-1 [pii]
AID - 10.1016/j.apmr.2004.01.023 [doi]
PST - ppublish
SO  - Arch Phys Med Rehabil. 2004 Sep;85(9):1525-30. doi: 10.1016/j.apmr.2004.01.023.