[Substrate metabolism of muscles during the early postoperative period: the effect of glucose infusions].

Muscle substrate metabolism was studied by measuring arterial deep-venous substrate concentration differences across the forearm in metabolically healthy volunteers 3 h after abdominal surgery. Despite elevation of insulin levels following glucose infusion, no effect on muscular fractional extraction of glucose and no decrease of lactate and alanine production was found, whereas muscular lipolysis was inhibited to a normal extent and ketone utilization was reduced.