Kinematic Evaluation via Inertial Measurement Unit Associated with Upper Extremity Motor Function in Subacute Stroke: A Cross-Sectional Study

Table 2

Correlations between clinical assessments and kinematic metrics (n = 37).

	FMA	ARAT	MBI	MT	VP	VM	TVP%	NMU
Clinical assessment
FMA
ARAT	0.94
MBI	0.62	0.64
Kinematic metrics
MT	0.11	0.07	0.15
VP	0.81	0.76	0.55	−0.03
VM	0.85	0.80	0.58	−0.11	0.96
TVP%	−0.11	−0.17	−0.14	−0.49	−0.17	−0.11
NMU	−0.65	−0.59	−0.45	0.10	−0.70	−0.74	0.22
NIJ	−0.24	−0.27	−0.10	0.71	−0.27	−0.40	−0.20	0.47

FMA-UE, Fugl-Meyer Assessment for Upper xtremity; ARAT, Action Research Arm Test; MBI, Modified Barthel Index; MT: movement time; VP: peak velocity; VM: mean velocity; TVP%: percentage of time to peak velocity; NMU: Number of movement units; NIJ: Normalized integrated jerk. : P < 0.05. : P < 0.01.