Journal of NeuroEngineering and Rehabilitation

Table 2 Regression coefficients of SPARC and FM-UE relative to week 26 post stroke

From: Smoothness metric during reach-to-grasp after stroke: part 2. longitudinal association with motor impairment

Time points	SPARC			FM-UE
Time points	B	95%-CI	P	B	95%-CI	P
(Intercept)	− 1.48	[− 1.52 − 1.43]	< 0.001	61.40	[58.60 64.20]	< 0.001
Week 1	− 0.26	[− 0.20 − 0.32]	< 0.001	− 21.48	[− 18.76 − 24.19]	< 0.001
Week 2	− 0.18	[− 0.13 − 0.23]	< 0.001	− 9.89	[− 7.11 − 12.67]	< 0.001
Week 3	− 0.09	[− 0.04 − 0.14]	< 0.001	− 5.46	[− 2.47 − 8.46]	< 0.001
Week 4	− 0.06	[− 0.01 − 0.11]	0.025	− 3.25	[− 0.32 − 6.18]	0.030
Week 5	− 0.05	[0.00 − 0.10]	0.062	− 2.62	[0.12 − 5.35]	0.061
Week 8	− 0.03	[0.02 − 0.08]	0.290	− 0.94	[1.91 − 3.79]	0.515
Week 12	− 0.01	[0.04 − 0.06]	0.558	− 0.66	[2.12 − 3.43]	0.643
Week 26	0ª	–	–	0ª	–	–

B, regression coefficient; 95%-CI, 95% confidence interval; P, probability value; SPARC, spectral arc length; FM-UE, Fugl-Meyer motor assessment of the upper extremity
ªThis parameter is set to 0 because it is redundant. Significant values are indicated in bold font. A P-value below 0.05 indicates a significant difference from the reference time point (week 26). For both SPARC and FM-UE, the contribution of time was significant until week 5 post stroke

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ISSN: 1743-0003

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