Table 4.

Segmental Assessment of Trunk Control (SATCo) scores for participants in each group across all data sessions.

Control Type	GMFCS IV (n=8)	GMFCS V (n=7)	TD-3 (n=7)	TD-2 (n=8)	TD-1 (n=8)	TD+1 (n=8)	GMFCS IV vs. TD	GMFCS V vs. TD
Static	4.0 (1.1)	2.2 (1.0)	3.8 (1.1)	4.7 (1.4)	5.9 (1.2)	7.6 (0.7)	p=0.66 (TD-3) p=0.097 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)	p=0.001 (TD-3) p<0.001 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)
Active	3.0 (1.0)	1.9 (0.9)	3.3 (1.2)	4.0 (1.4)	5.2 (1.6)	7.0 (1.3)	p=0.021 (TD-3) p=0.027 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)	p=0.009 (TD-3) p<0.001 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)
Reactive	3.3 (1.0)	2.2 (1.1)	3.4 (0.8)	4.3 (1.3)	5.7 (1.0)	6.7 (1.4)	p=0.022 (TD-3) p=0.011 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)	p=0.015 (TD-3) p<0.001 (TD-2) p<0.001 (TD-1) p<0.001 (TD+1)

Static = ability to maintain vertical alignment for 5 sec. or more; Active=ability to maintain vertical alignment while turning the head or reaching with arms; Reactive = ability to maintain or quickly return to vertical when given a nudge. Numerical values are used to indicate group means (bold) and standard deviations (italics), however SATCo scores are not intended to be numerical evaluations, each number indicates an anatomical segment where control was lost. The values reflect loss of control in the following segments: 1= cervical, 2 = upper thoracic, 3=mid-thoracic, 4= lower thoracic, 5= upper lumbar, 6= lower lumbar, 7 = loss of control with no support, 8= no loss of control.