TABLE 3.

Means (SD) for lumbar curvature angle in standing, and maximal trunk flexion and movement time for each condition of the functional activity test for the back-healthy group, low back pain group with < 20% modified Oswestry Disability Index score (LBP-Low), and the low back pain group with ≥20% modified Oswestry Disability Index score (LBP-High).

Characteristic	Back-healthy (n = 16)	LBP-Low (n =16)	LBP-High (n = 16)	p-value
Lumbar curvature, deg	159.2 (7.9)	158.2 (6.6)	162.1 (5.4)	.53
Maximal trunk flexion, deg
High	47.6 (9.1)	47.8 (11.4)	51.2 (12.7)	.58
Standard	89.5 (8.4)	90.0 (9.8)	88.6 (10.9)	.91
Far	97.9 (8.6)	96.0 (10.2)	94.7 (13.5)	.69
Low	119.7 (12.5)	122.3 (12.9)	119.5 (14.9)	.81
Low-Far	124.0 (14.7)	126.5 (12.2)	123.8 (15.2)	.84
Movement time, sec
High	1.02 (.16)	1.12 (.23)	1.07 (.20)	.41
Standard	1.15 (.22)	1.25 (.35)	1.24 (.27)	.60
Far	1.18 (.25)	1.25 (.38)	1.21 (24)	.78
Low	1.33 (.29)	1.40 (.42)	1.39 (.31)	.84
Low-Far	1.29 (.23)	1.34 (.39)	1.33 (.20)	.90