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. 2021 May 31;18(11):5930. doi: 10.3390/ijerph18115930

Table 3.

Percentages of time in HR zones recorded during the first (T1), second (T2) and third (T3) test sessions.

T1 T2 T3 Δ from T1 to T2 Δ from T2 to T3 Friedman ANOVA p Value Effect Size
% time in HR zone 1 (50–59%) 19.4 ± 19.2 * 44.0 ± 29.7 21.1 ± 19.5 * 25 ± 25 −23 ± 25 test = 16.16 <0.0005 0.67
% time in HR zone 2 (60–69%) 47.6 ± 15.0 42.4 ± 19.0 49.8 ± 17.2 −05 ± 24 07 ± 25 test = 1.16 0.55 0.04
% time in HR zone 3 (70–79%) 29.1 ± 21.6 * 12.5 ± 13.6 24.8 ± 20.8* −17 ± 17 12 ± 13 test = 18.16 <0.0005 0.75
% time in HR zone 4 (80–89%) 03.7 ± 04.0 01.3 ± 01.6 03.7 ± 02.7 * −02 ± 04 02 ± 02 test = 8.41 0.01 0.35
% time in HR zone 5 (90–100%) 0.1 ± 0.4 00 00 −0.1 ± 0.4 00 test = 2.0 0.36 0.08

*: significant difference compared to T2.