Psychometric properties of the 4-meter walk test after total knee arthroplasty.

ABSTRACT:

Objective

To determine the reliability, responsiveness, and convergent validity of the Four-Meter Walk Test (4mWT) compared to the Six-Minute Walk Test (6MWT) surrounding total knee arthroplasty (TKA).

Design

Secondary analysis of a randomized controlled trial.

Setting

Research laboratory.

Participants

One hundred sixty-two patients (aged 63.5 ± 7.4 (mean ± sd) years; 89 females) undergoing TKA participated.

Main outcome measures

4mWT (usual and fastest) and 6MWT were measured 1-2 weeks preoperatively, and 1, 2, 3, 6 and 12 months post-operatively.

Results

4mWT demonstrated excellent test-retest reliability with Interclass Correlation Coefficients (ICC's) ranging from 0.80 to 0.93 s. 4mWT also demonstrated small measurement error with Standard Err

SUBMITTER: Kittelson A 

PROVIDER: S-EPMC8178417 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature