Table 5.

Comparative analysis of the weightlifting assessment in the study (CROM 3+CM) and control groups (NDI questionnaire)

Weightlifting	Study group, n (%)	Control group, n (%)	p-value
I can lift heavy weights without extra pain	107 (31.7)	54 (90.0)	< 0.001
I can lift heavy weights but it gives extra pain	122 (36.1)	5 (8.3)	< 0.001
Pain prevents me lifting heavy weights off the floor, but I can manage if they are conveniently placed, for example on a table	23 (6.8)	0 (0.0)	> 0.05
Pain prevents me from lifting heavy weights but I can manage light to medium weights if they are conveniently positioned	19 (5.6)	0 (0.0)	> 0.05
I can only lift very light weights	67 (19.8)	1 (1.7)	< 0.001
I cannot lift or carry anything	0 (0.0)	0 (0.0)
Total	338 (100.0)	60 (100.0)