PMID- 36493868 OWN - NLM STAT- MEDLINE DCOM- 20230508 LR - 20230522 IS - 1532-821X (Electronic) IS - 0003-9993 (Linking) VI - 104 IP - 5 DP - 2023 May TI - An Equation With Clinical Applicability and Adequate Validity to Predict the Maximum Oxygen Consumption of Individuals Post-stroke. PG - 769-775 LID - S0003-9993(22)01757-9 [pii] LID - 10.1016/j.apmr.2022.11.005 [doi] AB - OBJECTIVE: To develop an equation with clinical applicability and adequate validity to predict the maximum oxygen consumption (V̇o(2max)) of individuals post-stroke. DESIGN: A cross-sectional study. SETTING: A university laboratory. PARTICIPANTS: Individuals post-stroke in the chronic phase (at least 6 months post-stroke). Step-1 (equation development): n=50, aged 55+/-12 years; Step-2 (validity investigation): n=20, aged 58+/-8 years (N=50 [step 1], N=20 [step 2]). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURE(S): Step-1 (equation development): multiple linear regression analysis was performed. DEPENDENT VARIABLE: V̇o(2max) (mL/kg(/)min) in the cardiopulmonary exercise test. INDEPENDENT VARIABLES: age (years), sex (1-women, 2-men), body mass index (BMI) (kg/m(2)), and distance (meters) in the Six-Minute Walk Test (6MWT) (6MWT-Equation) or in the Incremental Shuttle Walk Test (ISWT) (ISWT-Equation). Step-2 (validity investigation): agreement between the V̇o(2max) measured and predicted was evaluated with the intraclass correlation coefficient (ICC) with 95% confidence interval (CI) and the Bland-Altman method (alpha=5%). RESULTS: In step-1 (equation development), the 4 independent variables for each equation were retained (6MWT-Equation: R(2)=0.68, P<.001; ISWT-Equation: R(2)=0.58, P<.001). In step-2 (validity investigation), the 6MWT-Equation showed an ICC of 0.73 (95% CI=0.30, 0.89; P=.004) and a mean bias of 0.003 mL/kg/min; and the ISWT-Equation showed an imprecise ICC of 0.55 (95% CI=-0.12, 0.82; P=.045) and a mean bias of 0.971 mL/kg/min. 6MWT-Equation (V̇o(2max)=22.239+0.02 x distance in the 6MWT+4.039 x sex-0.157 x age-0.265 x BMI) showed adequate validity. CONCLUSIONS: An equation with clinical applicability and adequate validity in the investigated sample was developed to predict the V̇o(2max) of individuals post-stroke in the chronic phase (6MWT-Equation). Future studies with larger sample should investigate its external validity. CI - Copyright (c) 2022 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. FAU - Peniche, Paula da Cruz AU - Peniche PDC AD - Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. FAU - Aguiar, Larissa Tavares AU - Aguiar LT AD - Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Department of Physical Therapy, Faculdade Ciencias Medicas de Minas Gerais (FCM-MG), Belo Horizonte, Minas Gerais, Brazil. FAU - Ferreira Dos Reis, Maria Teresa AU - Ferreira Dos Reis MT AD - Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. FAU - Faria, Christina Danielli Coelho de Morais AU - Faria CDCM AD - Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. Electronic address: cdcmf@ufmg.br. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221207 PL - United States TA - Arch Phys Med Rehabil JT - Archives of physical medicine and rehabilitation JID - 2985158R SB - IM MH - Male MH - Humans MH - Female MH - Cross-Sectional Studies MH - *Exercise Test/methods MH - Walk Test/methods MH - *Stroke MH - Oxygen Consumption MH - Walking MH - Reproducibility of Results OTO - NOTNLM OT - Cardiorespiratory fitness OT - Oxygen consumption OT - Rehabilitation OT - Stroke OT - Walk test EDAT- 2022/12/10 06:00 MHDA- 2023/05/08 06:42 CRDT- 2022/12/09 19:33 PHST- 2022/04/20 00:00 [received] PHST- 2022/11/11 00:00 [revised] PHST- 2022/11/15 00:00 [accepted] PHST- 2023/05/08 06:42 [medline] PHST- 2022/12/10 06:00 [pubmed] PHST- 2022/12/09 19:33 [entrez] AID - S0003-9993(22)01757-9 [pii] AID - 10.1016/j.apmr.2022.11.005 [doi] PST - ppublish SO - Arch Phys Med Rehabil. 2023 May;104(5):769-775. doi: 10.1016/j.apmr.2022.11.005. Epub 2022 Dec 7.