Technology-aided assessment of functionally relevant sensorimotor impairments in arm and hand of post-stroke individuals

Table 2 Correlation between conventional scales and VPIT metrics for the most affected side

Dependent variable	Spearman correlations ρ_ma (n = 20)
	VPIT metrics										Conventional scales
	Impairments in activity context										Impairments
	Log jerk TP	Log jerk RT	SPARC RT	Path length ratio TP	Path length ratio RT	Vel. max. RT	Jerk PA	GF num. peaks TP	GF rate SPARC TP	GF rate SPARC HA	FMA-UE	MAS	EmNSA
Conventional scales
Impairments
FMA-UE	-0.39	-0.40	-0.51*	-0.46*	-0.21	-0.14	-0.58*	0.37	0.16	-0.36
MAS	0.51*	0.52*	0.59*	0.34	0.35	0.13	0.60*	-0.28	0.06	0.42
MOCA	-0.11	0.12	0.08	-0.07	0.13	-0.40	-0.08	-0.17	-0.61**	-0.36
EmNSA	-0.23	-0.28	-0.23	0.02	0.14	-0.13	-0.08	0.16	0.29	-0.04
Conventional scales
Activities
BBT	-0.60*	-0.50*	-0.53*	-0.55*	-0.27	-0.18	-0.73**	0.20	-0.25	-0.58*	0.66**	-0.65**	0.17
ARAT	-0.27	-0.27	-0.43	-0.61*	-0.29	-0.07	-0.65**	0.30	0.05	-0.59*	0.82**	-0.62**	0.22
NHPT	0.37	0.44	0.39	0.49*	0.26	0.02	0.64**	-0.20	-0.11	0.40	-0.57*	0.60*	-0.44

MAS: Modified Ashworth Scale; MOCA: Montreal cognitive assessment; NHPT: Nine Hole Peg Test; EmNSA: Erasmus MC modifications to the Nottingham Sensory Assessment; BBT: Box and Block Test; ARAT: Action Research Arm Test; FMA-UE: Fugl-Meyer Assessment Upper Extremity; GF: grip force. SPARC: spectral arc length. num: number. vel: velocity. TP: transport. RT: return. PA: peg approach. HA: hole approach. The Bonferroni-corrected significance level was 0.05/13=0.0038 for the correlations with the BBT, ARAT, and NHPT, and 0.05/10=0.005 for all other conventional scales
Spearman correlation analysis was applied to analyze the relationship of conventional scales and VPIT metrics. Only data collected during the first testing session with the most affected body side was considered for this analysis. *indicates a p-value below 0.05 and **indicates a p-value below the Bonferroni-corrected significance level. Bonferonni correction was applied within each table row

ISSN: 1743-0003