Importance of dimensional changes on glycolytic metabolism during growth

Purpose The aim of the present study was to investigate (i) how glycolytic metabolism assessed by accumulated oxygen deficit (AOD gly ) and blood metabolic responses (lactate and pH) resulting from high-intensity exercise change during growth, and (ii) how lean body mass (LBM) influences AOD gly and its relationship with blood markers. Methods Thirty-six 11- to 17-year olds performed a 60-s all-out test on a rowing ergometer. Allometric modelling was used to investigate the influence of LBM and LBM + maturity offset (MO) on AOD gly and its relationship with the extreme post-exercise blood values of lactate ([La] max ) and pH (pH min ) obtained during the recovery period. Results AOD gly and [La] max increased while pH min decreased linearly with LBM and MO ( r 2 = 0.46 to 0.72, p