IMUs	Inertial measurement units
BMI	Body mass index
IPAQ	International Physical Activity Questionnaire
40MFW	40-m fast-paced walk test
TUG	Time up and go test
30SCS	30 s chair stand test
SaEn	Sample entropy
SPARC	Spectral arc length
VT	Vertical
ML	Mediolateral
AP	Anteroposterior