P125 A mixed methods feasibility study of a gait rehabilitation programme for people with early rheumatoid arthritis and foot pain
Authors: Hendry Gordon J , Bearne Lindsay , Foster Nadine , Godfrey Emma , Hider Samantha , van der Leeden Marike , Mason Helen , McConnachie Alex , McInnes Iain , Patience Aimie , Sackley Catherine , Sekhon Mandeep , Williams Anita , Woodburn James , Steultjens Martijn 
Published: April 2020

Abstract

Background
Foot pain, a hallmark feature of rheumatoid arthritis (RA), is associated with slow and unsteady gait patterns, and persistent walking disability is common. Great Strides is a new gait rehabilitation programme designed to improve/preserve lower limb function in early RA. It is delivered by physiotherapists or podiatrists over 12-weeks and is supplemented with a home programme and support materials (DVD and illustrated booklet). It consists of a 6-task gait circuit and is underpinned by behaviour change techniques driven by motivational interviewing. The aims of this feasibility study were to 1) evaluate patient acceptability, adherence to, and safety of Great Strides, and 2) identify a suitable primary outcome measure for the main trial.

Methods
This study was a multi-centre (n = 3), single arm, repeated measures (pre- and post-intervention) design, with interviews exploring participants’ intervention perceptions. People with early (&lt;2 years) RA who had foot pain were invited to participate. Intervention acceptability was evaluated using a 3-item intervention acceptability questionnaire. Adherence was evaluated using the Exercise Adherence Rating Scale (EARS). Safety was monitored using case report forms. Complementary mixed methods integrated descriptive quantitative acceptability, adherence, safety and thematic analyses to corroborate findings. Measurement properties of candidate primary outcomes (10-metre walking time, Foot Function Index disability subscale [FFI-DS], Recent Onset Arthritis Disability lower extremity subscale, and Patient-Reported Outcomes Measurement Information System physical function short-form) were evaluated against a 7-point Change in Walking Ability scale (CWA).

Results
35 participants (68.6% female) with median age (inter-quartile range [IQR]) 60 [49-68] years and disease duration 9 [4-16] months), were recruited over 9 months and 23 (67%) completed 12-week follow-up. 12 participants completed interviews after the 12-week intervention period. Intervention acceptability was excellent; 21/23 were confident that it could help the problem; 21/23 reported that they would recommend it to a friend; 22/23 indicated it made sense to them. Intervention adherence was moderate, with a median [IQR] EARS score of 12/24 [7-19]. 1 participant reported transient post-exercise soreness. No serious adverse events were reported that were related to the intervention. From interviews, 10/12 participants reported they had continued with the intervention after 12-weeks. Participants revealed that the intervention provided structure and control to their day/week. Additional perceptions of benefit reported included improvements to lower limb joint health, and feelings of increased confidence to return to, or progress to further exercise in the community. The main challenge identified by some participants was lack of space to do the intervention at home. Correlations with the CWA were better for FFI-DS change-scores.

Conclusion
Great Strides has excellent acceptability and appears safe for people with early RA. Levels of adherence may be improved by intervention refinement. FFI-DS scores were theoretically consistent for selection as primary outcome for the main trial.

Disclosures
G.J. Hendry None. L. Bearne None. N. Foster None. E. Godfrey None. S. Hider None. M. van der Leeden None. H. Mason None. A. McConnachie None. I. McInnes None. A. Patience None. C. Sackley None. M. Sekhon None. A. Williams None. J. Woodburn None. M. Steultjens None.