OA	Osteoarthritis
TKA	Total knee arthroplasty
IMU	Inertial measurement unit
PROM	Patient-reported outcome measures
LDLJ	Log dimensionless jerk
LyE ${\lambda }_S$	Short-term divergence exponent
LyE ${\lambda }_L$	Long-term divergence exponent
VT	Vertical
ML	Mediolateral
AP	Anterior-posterior
Post-TKA	Post total knee arthroplasty
Pre-TKA	before total knee arthroplasty
KOOS	Knee Injury Osteoarthritis Outcome Score
HOOS	Hip disability Osteoarthritis Outcome Score
MDC	Minimal detectable change