Fig. 4

The patients' schedule of trial enrollment, interventions, and assessment. ROM, Range of motion; KSS, Knee society score; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index; 6MWT, 6-minute walking test; TUG, Timed up and go test. ^*Both active and passive ROMs of knee flexion and extension will be measured. ^†Isokinetic strength of knee flexion and extension measured at 60°/sec angular velocity using an isokinetic dynamometer (Systemic 4 Pro, Biodex Medical System, USA). ^‡ Mixed-type CPM group only