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

FIGURE 3.

FIGURE 3

The duration of low (LIT), moderate (MIT), and high-intensity (HIT) sessions performed across the annual cycle using block periodization of HIT (BP) (A), and the season using traditional periodization (TRAD) (B). LIT sessions with a duration < 1 h is not included in the figures.