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. 2016 Aug 17;11(8):e0159979. doi: 10.1371/journal.pone.0159979

Table 2. Lower limb serve biomechanics before (T0), at mid-match (T90) and immediately after the match (T180).

Values are mean ± SD.

T0 T90 T180
Maximal knee flexion angle (°) 80 ± 14 75 ± 15*** 75 ± 15***
Maximal rear knee extension angular velocity (°/s) 536 ± 142 488 ± 161*** 466 ± 164*** $

***p < 0.001; significantly different from T0;

$: p < 0.001; significantly different from T90.