Table 2.

Sensor-derived parameters demonstrating significant correlations with clinical measures.

Task	Domain	Variable	Parameter	Healthy Controls (n = 10)	Brunnstrom Stage 16				Pearson’s correlation coefficient Statistical Significancea		Statistical significanceb
					3 (n = 2)	4 (n = 2)	5 (n = 3)	6 (n = 2)
Forearm supination/pronation
ARAT	1	angle	aMSS	18.03	8.67	10.56	14.08	16.78	0.767	P = 0.016	P = 0.014
ARAT	4	angle	aMSS	38.22	11.40	16.14	23.06	29.92	0.725	P = 0.027	P = 0.004
ARAT	Full	angle	aMSS	19.30	9.94	12.71	14.89	16.15	0.753	P = 0.019	P = 0.002
ADL task	Full	angle	AMS	0.60	0.14	0.25	0.26	0.37	0.741	P = 0.022	P < 0.001
Wrist dorsiflexion/volarflexion
ARAT	2	angle	aMSS	13.68	7.71	7.73	9.88	12.38	0.764	P = 0.017	P = 0.001
ARAT	Full	angle	aMSS	13.57	7.23	8.62	11.61	14.31	0.877	P = 0.002	P = 0.001
Elbow flexion/extension
ARAT	1	angle	aMSS	32.91	9.12	14.49	22.29	22.23	0.745	P = 0.021	P<0.001
ARAT	3	angle	aMSS	15.60	9.12	15.32	19.23	21.96	0.800	P = 0.010	P = 0.040
ARAT	Full	angle	aMSS	28.21	10.49	14.67	19.33	19.39	0.728	P = 0.026	P<0.001
ARAT	3	angle	AMS	0.63	0.16	0.29	0.32	0.39	0.728	P = 0.026	P<0.001
ARAT total performance time (sec)				122.44	353.04	268.16	223.42	179.90	−0.914	P <0.001	P = 0.010

^aPearson’s correlation coefficient for the parameter versus ARAT score.

^bComparison between healthy controls and patient using paired t tests.

Abbreviations: ARAT, Action Research Arm Test; aMSS, average motion segment size; AMS, average motion speed.