TY - JOUR
T1 - A Prediction Model for Estimating Pulmonary Oxygen Uptake During the 6-Minute Walk Test in Organ Transplant Recipients
AU - Tomczak, C. R.
AU - Warburton, D. E.R.
AU - Riess, K. J.
AU - Jendzjowsky, N. G.
AU - Liang, Y.
AU - Bhambhani, Y.
AU - Haennel, R. G.
AU - Haykowsky, M. J.
N1 - Funding Information:
Author funding: Drs. Haykowsky and Warburton are Canadian Institutes of Health Research (CIHR) New Investigators. Dr. Warburton is also a Michael Smith Foundation for Health Research Scholar. Mr. Tomczak is a CIHR strategic training fellow in TORCH (Tomorrow’s Research Cardiovascular Health Professionals) and is supported by the Natural Sciences and Engineering Research Council of Canada.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/12
Y1 - 2007/12
N2 - We developed a multivariate prediction equation for estimating the highest obtainable pulmonary oxygen uptake (V̇O2p) during the 6-minute walk test (6-MWT) in 54 organ transplant recipients: heart/heart-double-lung (n = 14), kidney/kidney-pancreas (n = 16), liver (n = 14), double lung (n = 8), bone marrow (n = 2). They were of age, 48 ± 12 years. Participants performed a 6-MWT during which expired gases were collected and analyzed with a portable metabolic system interfaced with a wireless heart rate monitor. The following variables significantly contributed to the model for predicting the highest obtainable 6-MWT V̇O2p: 6-MWT distance (m), age (years), gender (male = 0, female = 1), resting heart rate, peak heart rate, weight (kg), and transplant type (kidney/kidney-pancreas = 1, other = 0), where: V̇O2p = 1.253 + 0.022 (6-MWT distance) + 0.112 (age) -3.192 (gender) -0.104 (resting heart rate) + 0.127 (peak 6-MWT heart rate) - 0.084 (weight) + 2.116 (transplant type). The explanatory variables in our final model accounted for 78% of the variance in 6-MWT V̇O2p. In conclusion, the addition of an easily estimated 6-MWT V̇O2p will provide added clinical information of functional capacity following an exercise rehabilitation intervention or during routine follow-up for organ transplant recipients.
AB - We developed a multivariate prediction equation for estimating the highest obtainable pulmonary oxygen uptake (V̇O2p) during the 6-minute walk test (6-MWT) in 54 organ transplant recipients: heart/heart-double-lung (n = 14), kidney/kidney-pancreas (n = 16), liver (n = 14), double lung (n = 8), bone marrow (n = 2). They were of age, 48 ± 12 years. Participants performed a 6-MWT during which expired gases were collected and analyzed with a portable metabolic system interfaced with a wireless heart rate monitor. The following variables significantly contributed to the model for predicting the highest obtainable 6-MWT V̇O2p: 6-MWT distance (m), age (years), gender (male = 0, female = 1), resting heart rate, peak heart rate, weight (kg), and transplant type (kidney/kidney-pancreas = 1, other = 0), where: V̇O2p = 1.253 + 0.022 (6-MWT distance) + 0.112 (age) -3.192 (gender) -0.104 (resting heart rate) + 0.127 (peak 6-MWT heart rate) - 0.084 (weight) + 2.116 (transplant type). The explanatory variables in our final model accounted for 78% of the variance in 6-MWT V̇O2p. In conclusion, the addition of an easily estimated 6-MWT V̇O2p will provide added clinical information of functional capacity following an exercise rehabilitation intervention or during routine follow-up for organ transplant recipients.
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U2 - 10.1016/j.transproceed.2007.10.004
DO - 10.1016/j.transproceed.2007.10.004
M3 - Article
C2 - 18089378
AN - SCOPUS:37049029975
VL - 39
SP - 3313
EP - 3316
JO - Transplantation Proceedings
JF - Transplantation Proceedings
SN - 0041-1345
IS - 10
ER -