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. 2019 Apr 5;10:375. doi: 10.3389/fphys.2019.00375

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Copyright © 2019 Solli, Tønnessen and Sandbakk.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The distribution of the total training volume and endurance training load (A), intensity distribution (B), low (LIT) (C), moderate (MIT), and high-intensity training (HIT) (D) across the annual cycle (TOTAL), and the different phases [general preparation (GP), specific preparation (SP) and competition phase (CP)], in the season using block periodization of HIT (BP) and the season using traditional periodization (TRAD).