Table 4.

Regression models demonstrating relations between skeletal muscle cytokine expression and motor functions in old C57BL/6 mice

	Beta	Standard Error	Partial Correlations
Grip strength (R2 = 0.843, P < 0.001)
IL-6	2.98	1.56	0.420
INF-γ	−3.22*	1.14	−0.566
TNF-α	−11.4*	2.48	−0.744
Treatment group	−14.7*	2.88	0.778
Open field distance (R2 = 0.452, P < 0.05)
IL-6	47.7	66.0	0.173
IL-1β	−88.9*	74.0	−0.280
TNF-α	−96.7	135	−0.171
Treatment group	−255.3*	125	−0.443
Endurance run time (R2 = 0.429, P < 0.05)
TNF-α	−178*	88.9	−0.447
IL-6	114.8	56.7	0.452
INF-γ	−95.7*	41.0	−0.504
Treatment group	183*	105	0.400

^*Beta and partial r = P < 0.05. Constants include grip strength =164.6, open field distance = 2282, and endurance run time = 913.2.