ADL	Activities of Daily Living
GRF	Ground reaction force
HS	Heel strike
IADL	Instrumental Activities of Daily Living
IPAQ	International Physical Activity Questionnaire
KMO	Kaiser–Meyer–Olkin
MMSE	Mini-Mental State Examination
N	Newton
OLST	One-Leg Standing Test
PC	Principal components
PCA	Principal Component Analysis
PCM	Principal Component Model
ROM	Range of motion
SD	Standard deviation
SRH	Self-reported health
TO	Toe-off