The effect of different lumbar belt designs on the lumbopelvic rhythm in healthy subjects

Table 6 Statistical results ( P **values*) corresponding to the effect of sex and experimental conditions on relative phase angle variables**

Phase angle	Phase	ANOVA (P values)			Post hoc (C)
Variable		Sex (S)	Condition (C)	S × C
RPA _Max	Flexion	0.592	<0.001	0.913	C1 > C2,C3,C4,C5
	Extension	0.080	<0.001	0.445	C4 > C1,C2,C5
RPA _Mean	Flexion	0.546	<0.001	0.921	C1 > C2,C3,C4,C5 C4 < C2,C5
	Extension	0.114	<0.001	0.599	C4 > C1,C2,C5 C3 > C1,C5
RPA _Std	Flexion	0.927	<0.001	0.871	C1 > C2,C3,C4,C5
	Extension	0.064	<0.001	0.456	C1,C2,C5 > C3,C4

LB: lumbar belt; C1 (control): no LB; C2 (ExtLB): extensible LB without panels; C3 (ExtLB-D): extensible LB with dorsal panel; C4 (ExtLB-DV): extensible LB with dorsal and ventral panels; C5 (NExtLB): non-extensible LB. *Significant P values are identified in bold characters, while trends (0.05 < P < 0.10) are identified in italics.

ISSN: 1471-2474