BMI	body mass index
FW	forward walking
LANK	less affected side of ankle
LASSO	least absolute shrinkage and selection operator
LEDD	levodopa-equivalent daily dose
Mini-BEST	Mini-Balance Evaluation Systems Test
ML	machine learning
MoCA	Montreal Cognitive Assessment
NPV	Negative predictive value
PD	Parkinson’s disease
PPV	Positive predictive value
RBF	radial basis function
RFE	recursive feature elimination
RFECV	recursive feature elimination with cross-validation
RMS	root-mean-square
ROC	receiver operating characteristic
ROC-AUC	area under the receiver operating characteristic curve
SD	standard deviation
SLL	stride length of the less affected side
SLM	stride length of the more affected side
SVM	support vector machine
TurnFS_IMA	360° turns at maximum speeds in the direction of the inner step of the more affected side
TurnPS_IMA	360° turns at preferred speeds in the direction of the inner step of the more affected side
UPDRS	Unified Parkinson’s Disease Rating Scale
VIF	variance inflation factor