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. 2021 Jul 16;53(12):2586–2595. doi: 10.1249/MSS.0000000000002753

TABLE 1.

Hamstring test results.

RTD
MVT (N·m) EMG MH (%MVT) EMG BF (%MVT) TTI50 (N·m·s−1) TTI100 (N·m·s−1) TTI150 (N·m·s−1) MRTD (N·m·s−1)
First Half (min)
 0 105.0 ± 17.0 100 ± 0 100 ± 0 0.39 ± 0.20 2.27 ± 0.71 5.60 ± 1.14 1182 ± 179
 15 98.8 ± 20.4 92.9 ± 17.8 89.8 ± 11.3 0.38 ± 0.26 2.19 ± 0.92 5.42 ± 1.38 1195 ± 210
 30 96.0 ± 18.7 92.7 ± 16.6 82.2 ± 15.1 0.36 ± 0.22 2.09 ± 0.83 5.14 ± 1.35 1163 ± 188
 45 95.5 ± 16.6 91.3 ± 14.7 83.9 ± 14.2 0.34 ± 0.25 1.91 ± 0.99 4.77 ± 1.66 1159 ± 264
Second half (min)
 0 95.1 ± 15.8 98.0 ± 13.2 90.3 ± 16.8 0.31 ± 0.15 1.95 ± 0.75 4.93 ± 1.20 1106 ± 189
 15 94.0 ± 16.8 87.8 ± 10.8 82.7 ± 13.3 0.36 ± 0.24 2.04 ± 0.91 5.04 ± 1.47 1237 ± 384
 30 91.8 ± 15.8 84.9 ± 20.3 74.0 ± 12.7 0.34 ± 0.12 2.08 ± 0.57 5.19 ± 0.88 1072 ± 171
 45 90.3 ± 18.1 82.1 ± 21.8 74.4 ± 18.6 0.29 ± 0.14 1.77 ± 0.79 4.51 ± 1.44 1081 ± 299
Main effect time within half
 Mean −2.4 −3.8 −5.6 −0.01 −0.07 −0.16 −13
 95% CI −3.6 to −1.2 −6.8 to −0.9 −7.7 to −3.5 −0.03 to 0.01 −0.15 to 0.02 −0.32 to 0.00 −48 to 22
 Cohen’s d 0.949 0.613 1.273 0.187 0.376 0.490 0.174
P <0.001 0.014 <0.001 0.447 0.129 0.049 0.480
Main effect half
 Mean −6.0 −6.0 −8.6 −0.03 −0.13 −0.26 −43
 95% CI −8.6 to −3.4 −10.4 to −1.6 −12.6 to −4.7 −0.08 to 0.01 −0.31 to 0.06 −0.59 to 0.07 −115 to 28
 Cohen’s d 1.101 0.651 1.040 0.332 0.179 0.382 0.294
P <0.001 0.009 <0.001 0.178 0.332 0.123 0.234

MVT values with corresponding EMG values, and RTD values throughout the football match simulation, as well as linear mixed modeling results for hamstring tests. For each effect, the mean of the effect, the 95% CI, effect size (Cohen’s d), and P values are shown.