Détermination de l'insulin-like growth factor-I, du lactate et du glucose par microdialyse musculaire au cours d'un exercice d'électrostimulation modéré

Introduction. – The impact of low intensity light neuromuscular electrostimulation (14 Hz, 30 mA) of the vastus lateralis was assessed through interstitial microdialysis measurement of free Insulin-Like Growth Factor-I, glucose and lactate during the stimulation (45 minutes) and recovery (40 minutes) periods in 3 healthy subjects.Results. – Muscular uptake of glucose was immediate, while delayed decrease of lactate production was observed. Free Insulin-Like Growth Factor-I was decreased during recovery.Conclusion. – These data suggest that a low intensity of neuromuscular electrostimulation determines a metabolic activation of the muscle. That activation spreads to the recovery period.