Standard Disease Activity Parameters and Step Activity in Patients With Rheumatoid Arthritis Receiving Etanercept

The StepWatch� activity monitor (SAM) in an ankle worn step counter and an accurate instrument to measure real world ambulatory activity. The investigators purpose was to investigate whether activities of daily living measured by SAM increase during a therapy with the TNF-alpha inhibitor etanercept in patients with active rheumatoid arthritis (RA).