AUTHOR=Fortune Jennifer , Norris Meriel , Stennett Andrea , Kilbride Cherry , Lavelle Grace , Hendrie Wendy , DeSouza Lorraine , Victor Christina , Ryan Jennifer Mary 

TITLE=Correlates of Objectively Measured Physical Activity Among People With Multiple Sclerosis: A Cross-Sectional Study

JOURNAL=Frontiers in Rehabilitation Sciences

VOLUME=Volume 2 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/rehabilitation-sciences/articles/10.3389/fresc.2021.726436

DOI=10.3389/fresc.2021.726436

ISSN=2673-6861

ABSTRACT=Abstract 
Background 
Identifying correlates of physical activity for people with multiple sclerosis (MS) is essential to design effective physical activity interventions.  

Methods: 
Participants completed a battery of questionnaires and wore an ActiGraph accelerometer. Light physical activity and moderate-to-vigorous physical activity (min/day) were calculated. Associations were examined using multiple linear regression adjusted for demographic and clinical confounders. 

Results: 
Fifty-eight adults with MS participated (mean±SD age: 56.8 ± 9.2yr; 67% female). MS type was associated with time in light physical activity. Participants with secondary progressive MS (B=-54.0, 95% CI -84.7 to -23.3) and primary progressive MS (B=-42.9, 95% CI  -77.5 to -8.3) spent less time in light physical activity than those with relapsing remitting MS. Walking capacity (MSWS-12) was associated with time in moderate-to-vigorous physical activity (B=-0.36, 95% CI -0.72 to -0.01). 

Conclusion  
This study identifies walking capacity and type of MS as correlates of PA, which may inform development of interventions to promote physical activity.