Muscle weight, mitochondrial enzyme activity, and ATP production rate

FR, food restricted; MPred, methylprednisolone; CS, citrate synthase activity; COX, cytochrome c oxidase activity; MAPR, mitochondrial ATP production rate; PM, pyruvate + malate; PCM, palmitoyl-L-carnitine + malate. Activity values given as µmol/min/g tissue. Similar treatment effects for enzymes and MAPR were evident when the data were expressed relative to protein content (not shown). *Less than Control, (P<0.05); #Less than FR (P<0.05).