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. 2020 Dec 14;11:620108. doi: 10.3389/fpsyg.2020.620108

Table 1.

Results of the first half (1-H), second half (2-H), and match (1-H and 2-H).

Match (95% CI) 1-H (95% CI) 2-H (95% CI) p-value ES (index)
Time of match (min) 67.00 30.28 36.72 - -
Total time on the court (min) 31.71 ± 9.02 (23.37–40.05) 13.44 ± 5.72 (8.15–18.73) 18.19 ± 6.04 (12.60–23.77) 0.16 0.81 (moderate)
Each participation (min) 8.19 ± 2.27 (6.09–10.28) 7.15 ± 2.39 (4.94–9.35) 9.49 ± 3.80 (5.98–13.01) 0.15 0.74 (moderate)
HRmean (bpm) 179 ± 6 (173–185) 181 ± 5 (176–186) 178 ± 9 (169–186) 0.19 0.43 (small)
HRmax (bpm) 200 ± 7 (194–206) 195 ± 9 (187–203) 198 ± 7 (192–204) 0.41 0.38 (small)
%HRmax (%) 88.79 ± 3.35 (85.69–91.88) 89.61 ± 2.31 (87.48–91.75) 88.03 ± 4.98 (83.42–92.63) 0.09 0.45 (small)
[La]mean (mmol·L−1) 8.32 ± 2.88 (5.65–10.98) 8.46 ± 3.01 (5.67–11.24) 8.17 ± 2.91 (5.48–10.86) 0.62 0.10 (trivial)
[La]max (mmol·L−1) 9.71 ± 3.00 (6.94–12.49) 9.16 ± 3.16 (6.23–12.08) 9.20 ± 3.14 (6.30–12.10) 0.94 0.01 (trivial)

Values expressed in mean ± SD (95% confidence interval) and difference between 1-H and 2-H. ES, effect size; HRmean, heart rate mean; HRmax, maximum heart rate; %HRmax, percentage of HRmax; [La], blood lactate concentration.