Validity of the Nurses’ health study physical activity questionnaire in estimating physical activity in adults with rheumatoid arthritis

BMC Musculoskeletal Disorders

Research Article

Johan von Heideken¹  Christine Iannaccone²  Michelle Frits BS²  Maura D. Iversen³  Nancy A. Shadick⁴  Michael Weinblatt⁴  Thomas Quinn⁵ 

[1] Department of Women and Children’s Health Karolinska Institutet, Stockholm, Sweden;Division of Rheumatology, Immunology & Allergy, Brigham & Women’s Hospital, Boston, MA, USA;Division of Rheumatology, Immunology & Allergy, Brigham & Women’s Hospital, Boston, MA, USA;Department of Women and Children’s Health Karolinska Institutet, Stockholm, Sweden;Harvard Medical School, Boston, MA, USA;Department of Physical Therapy, Movement and Rehabilitation Sciences, Bouvé College of Health Sciences, Northeastern University, 360 Huntington Avenue Rm 301c Robinson Hall, 02115, Boston, MA, USA;Division of Rheumatology, Immunology & Allergy, Brigham & Women’s Hospital, Boston, MA, USA;Harvard Medical School, Boston, MA, USA;University of Massachusetts Medical School, Worcester, MA, USA;

关键词: Physical activity;    Rheumatoid arthritis;    Measurement validity;   

DOI  :  10.1186/s12891-017-1589-y

 received in 2017-01-17, accepted in 2017-05-17,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundPatients with rheumatoid arthritis (RA) demonstrate reduced aerobic capacity, excess cardiovascular risk, mobility limitations and are less physically active than their healthy peers. Physical activity may decrease RA disease activity through its anti-inflammatory effects and psychological and health benefits. To successfully manage RA symptoms and reduce cardiovascular risks associated with RA through increased physical activity (PA), accurate physical activity assessments are critical. Accelerometry is an objective physical activity measure, but not widely used. Validity of the Nurses’ Health Study physical activity questionnaire II (NHSPAQ) has not been determined for estimation of physical activity in RA. This study examined NHSPAQ validity in adults with RA compared to accelerometry-based metabolic equivalents determined (METs) and results of performance tests. We hypothesized NHSPAQ scores would correlate moderately (0.4–0.5) with accelerometer physical activity estimates.MethodsThirty-five adults with RA (mean age [SD] 62 (Williams et. al, Health Qual Life Outcomes10:28, 2012) years, 28 females (80%) recruited from a hospital-based clinic registry participated in a one-week accelerometry trial. Medical data was compiled. Participants completed the NHSPAQ, a self-paced 20-m walk test, and modified timed step test. Participants wore an accelerometer for 7 consecutive days, then completed a physical activity log and another NHSPAQ. Metabolic equivalents (METs) were derived from NHSPAQ and accelerometers using standardized formulas. NHSPAQ METs were correlated with accelerometer METs and data from performance measures.ResultsAverage disease duration was 21 years (SD = 11), 63% patients took biologics. The average weekly METs reported were 29 (SD = 33) and accelerometer METs were 33 (SD = 22). NHSPAQ METs correlated moderately with accelerometer-derived METs (r = 0.48 95% CI (0.15–0.70). Self-reported PA correlated moderately with Step Test performance (r = 0.50 95% CI (0.18–0.72).ConclusionPatients with RA exhibit low physical activity levels. General fitness measures were moderately correlated with physical activity levels. A moderate significant correlation existed between NHSPAQ and accelerometry METs. These preliminary data suggest the NHSPAQ may be useful to describe physical activity levels in this population.

【 授权许可】

CC BY   
© The Author(s). 2017