Table 4.

Within-Day Intratester Reliability (ICC [2,3]) and Measurement Error for Thoracic Spine Range-of-Motion Measurements

Test	Right Side			Left Side
	ICC (95% Confidence Interval)	Standard Error of Measurement, °	Minimal Detectable Change, °	ICC (95% Confidence Interval)	Standard Error of Measurement, °	Minimal Detectable Change, °
Seated rotation, bar in back	0.94 (0.90, 0.97)	0.76	2.10	0.90 (0.81, 0.94)	1.21	3.37
Seated rotation, bar in front	0.87 (0.76, 0.93)	1.74	4.83	0.91 (0.84, 0.95)	1.12	3.10
Half-kneeling rotation, bar in back	0.95 (0.91, 0.97)	0.78	2.16	0.94 (0.90, 0.97)	0.81	2.24
Half-kneeling rotation, bar in front	0.92 (0.86, 0.96)	1.18	3.27	0.90 (0.82, 0.95)	1.38	3.82
Lumbar-locked rotation	0.90 (0.81, 0.94)	2.00	5.53	0.86 (0.75, 0.92)	2.12	5.89

Abbreviation: ICC, intraclass correlation coefficient.