Fig. 2From: Effect of knee joint weight change on knee function recovery and gait after total knee arthroplastyComputer simulation of 3D gait model. a Infrared reflective balls were attached to the lower limbs; b A grid plate could be used to calculate the walking distance. c Ten MX infrared cameras recorded the walking path. d Pressure plates were used to collect information on the patient's plantar reaction forcesBack to article page