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. 2019 Jan 1;12(2):144–154.

Table 1.

Percentage of time training in the three heart rate zones.

All (n = 9) Low (n = 6) High (n = 3)
Zone 1 (%) 84.2 ± 15.9 94.2 ± 3.0 64.2 ± 9.4
Zone 2 (%) 12.9 ± 12.1 5.1 ± 2.3 28.5 ± 4.9
Zone 3 (%) 3.0 ± 5.8 0.8 ± 0.9 7.3 ± 9.4

Values are mean ± SD. Zone 1 = below the metabolic threshold; Zone 2 = between the metabolic and ventilatory thresholds; Zone 3 = above the ventilatory threshold.