Comprehensive neuromechanical assessment in stroke patients: reliability and responsiveness of a protocol to measure neural and non-neural wrist properties

Table 3 Median, minimum and maximum, intraclass correlation coefficients (ICC), standard errors of measurement (SEM) and smallest detectable difference (SDD) for passive, active and reflexive parameters for all participants

Parameter		All participants median [min; max]	ICC	SEM	SDD
Passive
P_ROM (degrees)		132 [42; 151]	0.91	7	20
P_k (Nm rad⁻¹)		1.16 [0.29; 4.84]	0.81	0.36	1
P_RA (degrees)		−44 [−73; 1]	0.45	14	39
Active
A_ROM (degrees)		127 [0; 158]	0.99	5	14
A_MVC (Nm)	flexor	17.8 [0.1; 28.7]	0.95	2.1	6
	extensor	10.0 [0.1; 25.4]	0.93	1.8	5
A_CJT (Nm)	flexor	12.6 [0.0; 21.1]	0.92	1.9	5
	extensor	7.8 [0.0; 18.4]	0.88	1.9	5
Reflexive
R_ta (degrees)	flexor	−68 [−84; 47]	0.67	19*	53*
	extensor	22 [−69; 55]	0.50	26	73
R_lt (s)	flexor	0.029 [0.021; 0.045]	0.51	0.0039	0.0109
	extensor	0.035 [0.020; 0.049]	0.18	0.0056*	0.0154*
R_kv (Nms rad⁻¹)		0.019 [−0.059; 0.395]	0.52	0.0634	0.18
R_{m_env} (Nms rad⁻¹)		−0.007 [−0.086; 0.444]	0.74	0.0557	0.15

P_ROM: Range of motion passive, P_k: Stiffness in rest, P_RA: Rest angle. A_ROM: Range of motion active, A_MVC: Maximal voluntary contraction, A_CJT: Control over joint torque. R_ta: Threshold angle, R_lt: Reflexive loop time, R_kv: Reflexive contributions to joint resistance, R_{m_env}: Reflex modulation due to environmental changes. *: average of SEM and SDD for R_ta flexor and R_lt extensor, valid around median of both parameters. Because of heteroscedasticity, SDD and SEM might be smaller towards minimum of parameter and might be larger towards maximum of parameter.

ISSN: 1743-0003