Table 1.
Voluntary and electrically evoked responses before and after the race.
| PRE |
POST |
Difference | 90% CI |
Percent difference |
Effect size (Cohen’s d) | P-value | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Lower bound | Upper bound | Mean | SD | ||||
| MVCF (N) | 524.8 | 144.7 | 426.3 | 159.3 | –98.5 | –110.6 | –86.4 | –20.6 | 9.6 | 0.64 | <0.0001 |
| Maximal RFD (N/s) | 3747.7 | 801.2 | 3160.9 | 852.5 | –586.8 | –735.5 | –438.1 | –21.5 | 18.1 | 0.71 | <0.0001 |
| VA (%) | 91.1 | 7.2 | 83.3 | 10.2 | –7.7 | –9.6 | –5.8 | –8.7 | 6.5 | 0.81 | <0.0001 |
| RMSMV C/MAMPLITUDE | 5.5 | 1.9 | 4.0 | 1.4 | –1.5 | –1.9 | –1.1 | –24.8 | 16.9 | 0.90 | <0.0001 |
| RMSRFD (mV) | 1.82 | 0.45 | 1.48 | 0.41 | –0.29 | –0.46 | –0.12 | –27.2 | 45.8 | 0.79 | 0.0188 |
| Db100 (N) | 250.5 | 43.7 | 226.4 | 47.8 | –24.2 | –31.6 | –16.8 | –9.8 | 8.8 | 0.53 | <0.0001 |
| RFDDb100 (N/s) | 9244.4 | 2637.7 | 7580.8 | 2312.4 | –1663.5 | –2181.0 | –1146.1 | –16.8 | 16.4 | 0.67 | <0.0001 |
| Db10 (N) | 224.9 | 43.6 | 186.0 | 51.1 | –38.8 | –48.8 | –28.9 | –17.7 | 13.0 | 0.81 | <0.0001 |
| Db10:Db100 (%) | 89.8 | 9.2 | 81.8 | 12.8 | –7.9 | –10.8 | –5.1 | –9.0 | 9.2 | 0.63 | 0.0004 |
| Single twitch (N) | 157.1 | 34.1 | 133.5 | 36.4 | –23.7 | –31.0 | –16.4 | –15.1 | 13.5 | 0.69 | <0.0001 |
| MDURATION (ms) | 20.9 | 1.1 | 20.9 | 1.2 | 0.0 | –0.3 | 0.3 | 0.2 | 4.5 | 0.00 | 0.8501 |
| MAMPLITUDE (mV) | 2.70 | 0.63 | 2.52 | 0.54 | –0.17 | –0.29 | –0.06 | –4.7 | 14.6 | 0.31 | 0.0266 |
| MAREA (mV⋅ms) | 0.374 | 0.091 | 0.346 | 0.075 | –0.028 | –0.043 | –0.012 | –5.9 | 12.6 | 0.33 | 0.0112 |
MVCF, maximal voluntary contraction force; Maximal RFD, rate of force development recorded during the contraction that presented the highest RFD; Maximal RFDnormalized, Maximal RFD normalized to MVCF; VA, voluntary activation; MAMPLITUDE, peak-to-peak amplitude of the M-wave; RMSMVC/MAMPLITUDE, root mean square of electromyographic signals recorded during the MVC normalized to MAMPLITUDE; RMSRFD, root mean square of electromyographic signals recorded during the maximal RFD normalized to MAMPLITUDE; Db100, twitch evoked by the doublet at 100 Hz; Db10:Db100, ratio between the twitches evoked with doublets at 10 to 100 Hz; MDURATION, duration of the M-wave; MAREA, total area of the M-wave.