Table 2.

Thoracic Spine Range-of-Motion Measurements by Side, Examiner, and Session, ° (Mean±SD)

Test	Side	Examiner 1			Examiner 2		Session 1 P Value
		Session 1	Session 2	Session 3	Session 1	Session 2
Seated rotation, bar in back
	Right	45.4±10.0	43.0±9.6	45.4±8.2	39.3±10.4a	36.8±9.9	<.001
	Left	47.2±9.1	43.6±8.4	45.9±8.7	40.2±10.9a	37.7±9.8	<.001
	Average	46.2±9.1	43.3±8.5	45.6±7.6	39.7±10.0a	37.3±9.2	<.001
Seated rotation, bar in front
	Right	56.7±9.3	54.4±10.5	57.0±8.7	55.2±10.7	53.4±11.0	.16
	Left	56.7±9.4	53.7±9.0	56.1 ±8.4	57.64±11.4	55.28±11.1	.38
	Average	56.7±9.0	54.0±9.1	56.6±8.0	56.44±10.6	54.32±10.7	.78
Half-kneeling rotation, bar in back
	Right	53.1±11.4	51.0±10.9	51.7±11.1	45.7±11.7a	44.4±13.2	<.001
	Left	51.7±10.6	49.5±10.0	51.6±9.8	46.3±13.6a	44.1±12.3	<.001
	Average	52.4±10.6	50.3±10.1	51.6±10.2	46.0±12.1a	44.2±12.1	<.001
Half-kneeling rotation, bar in front
	Right	63.7±11.5	60.6±11.1	63.6±10.4	61.0±12.4a	58.9±12.3	.002
	Left	61.9±10.0	58.7±10.7	60.6±11.0	61.6±13.2	58.5±12.8	.74
	Average	62.8±10.4	59.6±10.3	62.1±10.2	61.3±12.3a	58.7±12.1	.04
Lumbar-locked rotation
	Right	41.1±14.6	39.0±13.6	45.7±14.3	39.5±11.2	39.0±12.7	.23
	Left	43.9±12.9	40.4±10.3	46.4±12.2	42.0±10.6	41.2±10.1	.11
	Average	42.5±13.2	39.7±11.4	46.0±12.8	40.8±10.3	40.1±10.9	.09

^aSignificant difference between examiners during session 1 measurements (P<.05).