Table 4.

Mobility of the thoracic spine with respect to the sternum and manubrium.

	Inspiration		Exhalation		Change		Wilcoxon signed-rank test
	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Z	p
Sternum T1–T2 angle (degrees)	42.9 ± 8.1	30–62	48.8 ± 8.4	35–69	5.8 ± 2.0	2–9	−5,429	0.000
Manubrium T1–T2 angle (degrees)	54.5 ± 7.9	40–67	58.9 ± 8.1	45–74	4.4 ± 2.1	2–8	−5,030	0.000
Distance LE sternum to T12 (mm)	181.4 ± 38.5	139.9–260.8	137.4 ± 38.5	81.2–223.5	43.8 ± 10.7	23–69	−5,373	0.000
LE sternum to T12 horizontal angle (degrees)	38.5 ± 7.5	26–55	25.3 ± 6.6	14–36	13.3 ± 5.4	0–25	−4,985	0.000
Distance UE manubrium to T1 (mm)	126.5 ± 15.5	99.5–158.5	121.2 ± 15.9	93.6–151.1	5.1 ±1.7	2–8	−5,112	0.000
UE manubrium T1 angle (degrees)	22.9 ± 6.4	11–37	41.4 ± 8.3	24–57	18.6 ± 6.4	4–32	−5,514	0.000
Distance T12 horizontal LE sternum	242.6 ± 25.5	196–284.6	196.1 ± 31.0	132.4–271.9	46.0 ± 16.8	18–80	−5,025	0.000

LE, lower edge; UE, Upper edge.