Figure 4From: Iron deficiency causes a shift in AMP-activated protein kinase (AMPK) subunit composition in rat skeletal muscleForce of muscle contraction. Fatigue was much greater in the ID group as evidence by the drop off in force that they were able to generate after continued 1 Hz muscle stimulation. After 6 min 40 sec the amount of force generated by the C rats was significantly greater than that of the ID rats (p<0.01) (n=11-14).Back to article page