Table 2.

Convergence Analysis Results

Parameter		PLUS-M	ABC Scale
Coronal sway centroidal frequency*	ρ	−.586	−.509
	p-value	.004	.016
Sagittal sway centroidal frequency	ρ	−.245	−.228
	p-value	.273	.307
Coronal sway mean velocity	ρ	.277	.283
	p-value	.212	.202
Sagittal sway mean velocity	ρ	.126	.104
	p-value	.577	.646
Coronal sway area radius	ρ	.306	.308
	p-value	.166	.163
Sagittal sway area radius*	ρ	.451	.422
	p-value	.035	.051
APA Duration	ρ	.182	−.072
	p-value	.552	.814
APA first step ROM	ρ	−.499	−.426
	p-value	.083	.146
APA anterior-posterior amplitude	ρ	−.146	−.047
	p-value	.635	.878
APA medial-lateral amplitude	ρ	−.025	−.112
	p-value	.934	.716
Trunk coronal ROM	ρ	.200	.219
	p-value	.373	.328
Trunk sagittal ROM	ρ	−.054	−.071
	p-value	.813	.755
Trunk transverse ROM	ρ	−.047	−.086
	p-value	.835	.703
Sound limb step time SD	ρ	−.064	.116
	p-value	.776	.606
Prosthetic limb step time SD	ρ	−.219	−.370
	p-value	.326	.090
Sound limb swing time SD	ρ	−.338	−.288
	p-value	.123	.193
Prosthetic limb swing time SD	ρ	−.092	−.199
	p-value	.684	.375
Turn duration	ρ	.411	.165
	p-value	.058	.464
Turn velocity	ρ	.040	.219
	p-value	.859	.328
Number of steps in turn	ρ	.358	.177
	p-value	.101	.432

PLUS-M=Prosthetic Limb Users Survey of Mobility; ABC=Activity-specific Balance Confidence; APA=anticipatory postural adjustment; ROM=range of motion; SD=standard deviation. Parameters with significant correlations (p≤.05) denoted by asterisks and bolded.