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Correction to: European Journal of Applied Physiology (2018) 118:449–460 https://doi.org/10.1007/s00421-017-3787-6
There is a typo in the original equation describing lean mass, and it has also been pointed out to the authors that the model is not strictly energy balanced. This corrigendum aims to correct these issues by clarifying Eq. 8 in the original manuscript, stating that the model is not energy balanced and describing how the model could be energy balanced and how the results would change only marginally.
Corrigendum:
Page 450, paragraph 5: Model Development.
Original Eq. 8:
Corrected Eq. 8:
The Torres et al. model is not energy balanced because the right hand sides of the equations describing energy partitioning do not sum to zero. By subtracting the muscle hypertrophy term from the fat equation as shown
the model can be made energy balanced. Adding this term makes the simplifying biological assumption that the gain in lean mass corresponds to a loss in adipose tissue to achieve energy balance. We acknowledge that this process is significantly more complicated and that stored adipose tissue is not used to generate lean tissue. Future models can be developed to more accurately model this process.
Changing this term would result primarily in a slight decrease in predicted fat mass levels over time with insignificant changes in predicted lean mass levels. Since the main analyses included in the original manuscript are based on the lean mass results, the results and conclusions of the manuscript are unchanged when the model is replaced with an energy balanced model.
The following two figures show typical differences in results between the model of Torres et al. and the energy balanced model under different initial conditions.
Page 452: Fig. 3.
Page 457: Fig. 9.
References
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Torres, M., Trexler, E.T., Smith-Ryan, A.E. et al. Correction to: A mathematical model of the effects of resistance exercise-induced muscle hypertrophy on body composition. Eur J Appl Physiol 118, 2035–2037 (2018). https://doi.org/10.1007/s00421-018-3895-y
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DOI: https://doi.org/10.1007/s00421-018-3895-y