<qa>  What is the indice of protein degradation?Comparisons: Glutamine administration compared to placebo on the following outcome measures: walking speed on a standard course, work kcal and power kcals in relation to effort, body composition bioelectrical impedance analysis and BIPHOTONIC absorptiometry, muscle mass 24-h urinary creatinine excretion, indices of protein degradation CPK and 3-methyl histidine excretion and biochemical parameters electrolytes, fasting glucose, transaminases, insulin, IgfI, Igf-BPI. 