Table 1 Results for endurance running performance, blood lactate levels, and heart rate differences between morning and evening
From: Daytime fluctuations of endurance performance in young soccer players: a randomized cross-over trial
Incremental treadmill test | ||||||
|---|---|---|---|---|---|---|
Parameter | Morning | Evening | Mean difference | corrected p-value (original) | Cohen’s d (t-value) | df |
Heart rate [1/min] | ||||||
Rest | 86.60 (9.68) | 85.73 (10.88) | 0.87 (10.33) | 1.00 (0.750) | − 0.09 (0.35) | 14 |
LT | 150.93 (12.13) | 153.47 (10.29) | − 2.53 (9.81) | 1.00 (0.334) | 0.23 (− 1) | 14 |
IAT | 177.47 (7.85) | 179.27 (6.31) | − 1.80 (4.87) | 0.872 (0.174) | 0.25 (− 1.43) | 14 |
Max | 197.13 (6.29) | 198.73 (6.08) | − 1.60 (4.21) | 0.814 (0.163) | 0.26 (− 1.47) | 14 |
Lactate concentration [mmol/l] | ||||||
Rest | 0.84 (0.21) | 0.83 (0.31) | 0.01 (0.31) | 1.00 (0.930) | − 0.04 (0.09) | 12 |
LT | 1.52 (0.67) | 1.66 (0.61) | − 0.13 (0.40) | 1.00 (0.250) | 0.22 (− 1.20) | 12 |
IAT | 3.02 (0.67) | 3.16 (0.61) | − 0.14 (0.40) | 0.962 (0.241) | 0.22 (− 2.51) | 12 |
Max | 9.15 (2.18) | 10.64 (2.30) | − 1.49 (2.15) | 0.110 (0.028) | 0.67 (− 2.51) | 12 |
Running speed [km/h] | ||||||
LT | 8.67 (1.17) | 9.00 (1.10) | − 3.30 (0.74) | 0.429 (0.107) | 0.29 (− 1.72) | 14 |
IAT | 11.94 (1.28) | 12.12 (1.18) | − 0.19 (0.68) | 1.00 (0.317) | 0.15 (− 1.04) | 13 |
Max | 15.81 (1.62) | 16.31 (1.59) | − 0.49 (0.76) | 0.100 (0.025) | 0.31 (− 2.51) | 14 |
3.000-m test | ||||||
Time [min:sec] | 12:59:00 (1:29) | 13:06:00 (1:30) | − 0:07 (0:22) | 0.228 | 0.08 (− 1.26) | 15 |
RPE | 15.31 (1.82) | 15.44 (1.09) | − 0.13 (1.78) | 0.783 | 0.09 (− 0.28) | 15 |