The Journal of Korean Physical Therapy

Table. 2. Table 2

Pre-post comparison of shoulder height and thoracic kyphotic angle according to backpack weig ht in each group

Group	Variables	Pre	Post	t	p
0%	SH (cm)	8.66± 1.48	8.77± 1.42	-1.492	0.170
	TKA (°)	167.44± 4.77	166.11± 4.46	1.706	0.126
10%	SH (cm)	9.48± 1.71	9.96± 1.82	-3.632	0.003^*
	TKA (°)	164.82± 4.49	164.36± 4.78	0.683	0.510
15%	SH (cm)	9.46± 1.08	9.92± 1.10	-3.342	0.005^*
	TKA (°)	164.43± 6.15	163.79± 5.41	1.091	0.295
20%	SH (cm)	9.97± 1.08	10.70± 1.07	-4.250	0.001^*
	TKA (°)	163.36± 5.40	161.64± 5.47	2.326	0.037^*

All values are reported as the mean± standard deviation. SH: shoulder height, TKA: thoracic kyphotic angle. ^*p< 0.05.