Real-world cohort demonstrates that Fitbit effectively tracks activity and quality of life in idiopathic inflammatory myopathy patients, suggesting a valuable tool for monitoring.
In a large IIM cohort, Fitbit® PAM variables demonstrate favourable compliance and psychometric properties with strong test-retest reliability and validity. PAMs can complement current measurements to remotely track patient performance, quality of life, and disease activity.
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Sharma et al. (2026) studied this question.
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