Development and validation of a questionnaire to assess barriers to physical activity after stroke: the BArriers to Physical Activity after Stroke scale (BAPAS)

Publication date: Available online 24 January 2019

Source: Archives of Physical Medicine and Rehabilitation

Author(s): Joffrey Drigny, Charles Joussain, Vincent Gremeaux, Remy Morello, Patrick Ho Van Truc, Paul Stapley, Emmanuel Touzé, Alexis Ruet

Abstract

Objective

To develop and validate a self-reported questionnaire assessing the barriers to physical activity (PA) among stroke survivors.

Design

Psychometric study.

Setting

Ambulatory stroke care.

Participants

In stage 1, community-living stroke survivors (N=37; 13 women) with low-moderate disability (modified Rankin score 0-3, stroke >3 mo) were included. In stage 2, participants (N=109; 40 women) with same characteristics were included. Nine professionals experienced in PA for post-stroke patients formed an expert panel.

Interventions

In stage 1, semi-structured interviews identified perceived barriers to PA, which were then selected by the expert panel and grouped on a BAPAS scale. In stage 2, stroke participants completed a personal information questionnaire and the BAPAS scale.

Main Outcome Measures

An item selection process with factor analysis was carried out. The suitability of the data set was analyzed using the Kaiser-Meyer-Olkin (KMO) coefficient, internal consistency was evaluated by Cronbach's α and concurrent validity was assessed with Spearman's correlation coefficients between the BAPAS scale and the modified Rankin Scale (mRS). Test-retest repeatability was estimated using two-way random effects intraclass coefficients ICC(2,1) at 4-6 days follow-up (n=21).

Results

Factor analysis supported a 14-item BAPAS which explained 62% of total variance (KMO = .82) and total score calculated over 70 (higher scores for higher barriers). Cronbach's α was .86, Spearman's correlation with the mRS was r=.65 (p<.001) and test-retest ICC was .91 (95%CI .79-.97). BAPAS scores were higher in patients with greater disabilities and a longer time since the stroke event (p<.01).

Conclusion

We developed and validated the BAPAS scale to assess barriers to PA in stroke survivors with low-moderate disability with promising psychometric properties.

from Rehabilitation via xlomafota13 on Inoreader http://bit.ly/2RLUJ2Z
via IFTTT