Table 4.

Physical function characteristics: muscle function.

	LBP Group (n = 25)	Pain-Free Group (n = 25)	Between-Groups Differences
Prone Bridge (s)	25.9 ± 8.6	38.7 ± 14.4	12.8 (6.0; 17.0) †
Lateral Bridge (s)
Mean	19.4 ± 6.4	27.1 ± 9.7	7.7 (4.4; 11.0) †
Left side	19.0 ± 5.7	26.0 ± 8.9
Right side	19.8 ± 7.1	28.3 ± 10.4
Between-sides Difference	0.7 (−3.0; 4.4)	2.2 (−3.2; 7.8)
Biering-Sorensen Test (s)	29.1 ± 17.5	37.3 ± 13.1	8.2 (0.5; 17.0) *

* p <0.05; ^† p < 0.001.