The effects of an 8-week stabilization exercise program on lumbar movement sense in patients with low back pain

Table 2 Reliability results (D-Study)

Variable	Mean	Strategy: 1 trial/day			Strategy: 5 trials/day			Strategy: 10 trials/day			N ^a
Variable	(SD)	ϕ	SEM	SEM(%)	ϕ	SEM	SEM(%)	ϕ	SEM	SEM(%)	ϕ > 0.75
MPT	2.6 (2.2)	0.43	1.7	66	0.57	1.3	50	0.59	1.2	47	∞

SD Standard Deviation, ϕ Index of dependability, SEM standard error of measurement, SEM (%) SEM expressed in percentage of the grand mean; ^a Number of trials required to reach ϕ ≥ 0.75, ∞ indicating when it is impossible to reach this threshold