Table 2. HRV, morning salivary levels of cortisol, nocturnal heart rate and sleep, amounts of hard and easy training, overall training load, and blood level of lactate and heart rate during submaximal running tests (SRT) at different time-points during the 7-week study period (means ± SD).
|
T1, week 1 |
T1, week 3 |
T2, week 5 |
T2, week 7 |
| RMSSD (ms)a |
66.9 ± 17.8 |
75.0 ± 17.0* |
75.6 ± 28.7 |
67.0 ± 24.8* |
| Cortisol (μg/L)a |
6.7 ± 2.5 |
6.3 ± 3.1 |
5.6 ± 2.0 |
7.0 ± 2.4 |
| Hard training (min)b |
44 ± 30 |
64 ± 28 |
45 ± 17 |
53 ± 14* |
| Easy training (min)b |
508 ± 190 |
555 ± 151 |
743 ± 251 |
577 ± 136 |
| Training loadb |
616 ± 246 |
714 ± 209 |
856 ± 283 |
710 ± 132* |
| Blood lactate (mmol/L)c |
3.8 ± 1.0 |
3.6 ± 0.6 |
3.5 ± 0.6 |
3.7 ± 1.1 |
| Heart rate (bpm)c |
183 ± 6 |
184 ± 8 |
180 ± 9 |
182 ± 9 |
| Sleep (min)a |
482 ± 29** |
513 ± 36 |
513 ± 52 |
527 ± 44 |
| Nocturnal heart rate (bpm)a |
58 ± 5** |
55 ± 4 |
55 ± 3 |
54 ± 5 |
a Average 3-day values for the nocturnal root mean square of successive differences between RR intervals (RMSSD), nocturnal heart rate, night sleep and saliva levels of cortisol.
b Weekly values.
c Average during the final stage of the SRT.* p < 0.05 compared to the previous week.** p < 0.05 when compared to week 7.
