Fig. 4From: Measuring recovery after open lower limb fractures: combined objective functional tests and global perceived recovery outperform narrower metrics and a standard generic patient reported outcome measureCorrelation Between Isolated and Combined Objective Functional Outcome Measures. Isolated Measures: Knee Flexion Active (KFA), Ankle Plantar Flexion Passive (APFP), Knee Flexion Strength (KFS), Ankle Plantar Flexion Strength (APFS). Combined Measures: Timed up and go (TUAG), Edgren Side Step Test (ESST), comfortable and fast gait speed (CGS and FGS). Patient Reported Outcome Measures: Global Perceived Effect (GPE) score and Disability Rating Index (DRI)Back to article page