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Study design
Design:
randomised controlled trial (RCT).
Allocation:
unclear allocation concealment.*
Blinding:
blinded (outcome assessors).*
Study question
Setting:
kinesiology laboratory in Taiwan.
Patients:
106 patients ⩾50 years of age (mean age 62 y, 69% women) who had bilateral knee osteoarthritis (OA) according to American College of Rheumatology criteria, radiographic changes (OA grade ⩽3, compatible with mild and moderate OA), chronic knee pain for ⩾6 months, and willingness to stop medication.
Intervention:
weight-bearing exercise (WBE) (n = 36), non-WBE (n = 35), or no exercise (n = 35). WBE was done in a sitting position, using an EN-Dynamic resistance device (Enraf-Nonius BV, The Netherlands). With 1 foot fixed on the pedal of the device, patients fully extended and then flexed the knee joint from 90° flexion. For non-WBE, …
Footnotes
Source of funding: National Science Council, Executive Yuan, Taiwan.