Daily physical activity measured by a wearable activity monitoring device in patients with rheumatoid arthritis

Introduction Activities of daily living in patients with rheumatoid arthritis (RA) have been evaluated by patient-reported outcomes. However, it has been difficult to measure activity intensity quantitively. Calories expended, exercise, and steps were measured quantitively by a wearable activity met...

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Bibliographic Details
Published in:Clinical rheumatology 2022-07, Vol.41 (7), p.2011-2019
Main Authors: Tada, Masahiro, Yamada, Yutaro, Mandai, Koji, Matsumoto, Yoshinari, Hidaka, Noriaki
Format: Article
Language:English
Subjects:
Activities of Daily Living
Aged
Arthritis, Rheumatoid - complications
Body composition
Calories
Exercise
Exercise - physiology
Frailty
Humans
Medicine
Medicine & Public Health
Original Article
Physical activity
Physical fitness
Physical training
Prospective Studies
Remission
Rheumatoid arthritis
Rheumatology
Walking
Wearable Electronic Devices
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Summary:Introduction Activities of daily living in patients with rheumatoid arthritis (RA) have been evaluated by patient-reported outcomes. However, it has been difficult to measure activity intensity quantitively. Calories expended, exercise, and steps were measured quantitively by a wearable activity meter, and their associations with patients’ background characteristics were examined. Methods Data from a prospective, observational study (CHIKARA study) were used. Eighty-five of 100 RA patients were entered and wore a wearable activity meter for 7 days. The daily calories expended and exercise for both walking and housework and steps were evaluated. Total daily calories expended and exercise was defined as the sum of walking and housework. The relationships of DAS28-ESR, mHAQ, body composition, muscle function, and general status were analyzed. Results The median age was 66.0 years, and the disease duration was 5.3 years. DAS28-ESR was 3.11, and mHAQ was 0.125. Total daily calories expended, exercise, and number of steps were 461.7 kcal, 3.97 METs h, and 4,788, respectively. MHAQ, walking speed, power, locomotive syndrome, and frailty were independently related to exercise. Total daily exercise and steps of the moderate and high disease activity group were significantly lower than those of the remission group. When the number of steps was 
ISSN:0770-3198
1434-9949
1434-9949
DOI:10.1007/s10067-022-06147-6