Table 2.

Serum C-reactive protein (CRP) and selected plasma cytokine data pre- and post-study (8 weeks) (mean ± SE)

Variable	Instaflex (N = 49)	Placebo (N = 51)	Interaction effect, P-Value
CRP (mg/L)
Pre-Study	4.05 ± 0.64	3.77 ± 0.43	0.518
Post-Study	3.56 ± 0.56	3.50 ± 0.41
IL-6 (pg/ml)
Pre-Study	2.12 ± 0.20	1.80 ± 0.20	0.991
Post-Study	2.16 ± 0.17	1.84 ± 0.17
IL-8 (pg/ml)
Pre-Study	5.39 ± 0.35	5.55 ± 0.34	0.143
Post-Study	6.41 ± 0.40	7.13 ± 0.39
TNF-α (pg/ml)
Pre-Study	4.19 ± 0.16	4.32 ± 0.16	0.380
Post-Study	4.10 ± 0.17	4.32 ± 0.17
IL-10 (pg/ml)
Pre-Study	1.24 ± 0.11	1.39 ± 0.10	0.760
Post-Study	1.23 ± 0.08	1.35 ± 0.08