Load and speed effects on the cervical flexion relaxation phenomenon

Table 2 Intra-session kinematic ICC(2,1)

	Speed	Load	Mean (SD)	SEM	ICC(2,1)	CI 95% -	CI 95% +	k ICC≥80
Onset angle	S	a	17 (4.5)	2.4	0.72	0.49	0.87	2
		b	15 (3.8)	2.1	0.71	0.48	0.87	2
		c	13 (2.6)	1.7	0.64	0.38	0.83	3
	F	a	17 (5.5)	3.0	0.70	0.47	0.86	2
		b	14 (4.0)	2.1	0.73	0.51	0.88	2
		c	12 (4.2)	2.6	0.61	0.35	0.81	3
Cessation angle	S	a	21 (4.6)	1.5	0.89	0.78	0.95	1
		b	18 (4.1)	1.5	0.86	0.73	0.94	1
		c	16 (3.6)	1.56	0.81	0.64	0.92	1
	F	a	21 (5.1)	1.6	0.91	0.81	0.96	1
		b	18 (4.3)	1.2	0.92	0.84	0.97	1
		c	15 (4.2)	1.6	0.86	0.73	0.94	1

Presented with mean and standard deviations (SD), in degrees, standard error of the measurement (SEM), ICC(2,1) with 95% confidence interval, and number of trials needed to obtain an ICC(2,k) of at least .80. Slow (S) and fast (F) speed conditions and loaded (a), no load (b) and counterweighted (c) load conditions are presented.

ISSN: 1471-2474