Article

Objective: To examine the intra-rater reliability of sitting symmetry and weight-shift activity measurements in poststroke adults. Design: An intra-rater reliability study. Setting:
A community setting. Subjects: Adult stroke survivors attending stroke support groups within the community of Nottingham (UK). Main measures: The Balance Performance Monitor used to measure sitting symmetry and weight-shift activity. Intraclass correlation coefficients (ICCs) and their 95% confidence intervals (95% Cl) were calculated. The Bland-Altman method for assessing agreement is also presented. Results: We tested 49 participants (median age 73 years; interquartile range 68-81 years). Between-test reliability for sitting symmetry was high: ICC (1, 1) = 0.93 (95% Cl 0.87 <= ICC <= 0.96). The mean difference between the measures ((d) over bar) was - 0.08 (95% Cl - 0.48 <= (d) over bar <= 0.31),- the standard deviation of the differences (SDdiff) was 1.383. The coefficient of repeatability was 2.76; the 95% limits of agreement were - 2.850 and 2.682, Between-test reliability for weight-shift activity was also high: ICC (1,1) = 0.86 (95% Cl 0.77 <= ICC <= 0.92). Bland-Altman (d) over bar = - 0.08 (95%Cl - 0.1 9 <= (d) over bar <= 0.35),
SDdiff = 0.936. The coefficient of repeatability was 1.87,- the 95% limits of agreement were - 1.792 and 1.952. Conclusions:
The 95% Cl for (d) over bar for both parameters crossed zero, indicating that between-test bias is unlikely. Sitting symmetry and weight-shift activity measures demonstrated acceptable levels of reliability.

Langue : ANGLAIS