Importance of dimensional changes on glycolytic metabolism during growth

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ORIGINAL ARTICLE

Importance of dimensional changes on glycolytic metabolism during growth Allison Diry1,2   · Sébastien Ratel3   · Joffrey Bardin2 · Neil Armstrong4   · Quentin De Larochelambert5 · Claire Thomas6 · Hugo Maciejewski1,6  Received: 3 April 2020 / Accepted: 10 July 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract Purpose  The aim of the present study was to investigate (i) how glycolytic metabolism assessed by accumulated oxygen deficit ­(AODgly) and blood metabolic responses (lactate and pH) resulting from high-intensity exercise change during growth, and (ii) how lean body mass (LBM) influences ­AODgly 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 A ­ ODgly and its relationship with the extreme postexercise blood values of lactate ­([La]max) and pH ­(pHmin) obtained during the recovery period. Results AODgly and ­[La]max increased while ­pHmin decreased linearly with LBM and MO (r2 = 0.46 to 0.72, p