Table 2. Changes from baseline in potentiated peak twitch of knee extensors (KE) and plantar flexors (PF) and M-wave characteristics of Vastus Lateralis (VL) and Soleus (SOL) muscles.
| POST | D+2 | D+5 | D+9 | D+16 | |
| Potentiated Peak Twitch | |||||
| KE | −22%$$$,*** | −9%** | −5%p = 0.07 | −5% p = 0.06 | −4%* |
| [−28 to −17%] | [−13 to −4%] | [−10 to −1%] | [−9 to −2%] | [−10 to 1%] | |
| PF | −20%$$$, *** | +4% | +15%* | +17%* | +16%** |
| [−31 to −8%] | [−8 to 16%] | [−31 to 1%] | [4 to 29%] | [−27 to 5%] | |
| M-wave Peak-to-peak Amplitude | |||||
| VL | −19%$$$,*** | −19%*** | −2% | +3% | +8% |
| [−28 to −10%] | [−25 to −12%] | [−11 to 7%] | [−6 to 12%] | [−1 to 16%] | |
| SOL | −20% $$, p = 0.09 | −36% p = 0.02 | 0% | +9% | −2% |
| [−35 to −4%] | [−45 to −26%] | [−21 to 22%] | [−23 to 40%] | [−34 to 29%] | |
| M-wave Peak-to-peak Duration | |||||
| VL | +14% $, p = 0.06 | +10% p = 0.07 | +7% | +10% | +15% p = 0.05 |
| [3 to 25%] | [3 to 17%] | [−1 to 16%] | [−2 to 21%] | [0 to 29%] | |
| SOL | +12% p = 0.06 | +11% | +3% | −5% | 0% |
| [−4 to 29%] | [−6 to 27%] | [−13 to 20%] | [−18 to 7%] | [−12 to 12%] | |
Data are expressed as Δ changes from PRE values (n = 11). Data are mean values ± SD. 95% Confidence Intervals are given in square brackets.
POST/D+2/D+5/D+9/D+16 are the measurements performed immediately after and 2, 5, 9 and 16 days after the race.
: P<0.05,
: P<0.01,
: P<0.001,
significance of t-test between PRE and POST (n = 22);
*: P<0.05;
**: P<0.01;
***: P<0.001,
significance level of pairwise comparisons between PRE and every other measurements (parametric tests).
: P<0.001,
significance level of pairwise comparisons between PRE and every other measurement (nonparametric tests, P<0.01 to be significant). Δ changes from PRE values in potentiated twitch contraction time, potentiated twitch half-relaxation time and potentiation of knee extensors (KE) and plantar flexors (PF) are given in File S1.