Table 1 Performance and Physiological variables associated with Mechanical Efficiency and Running Economy measured during the four-minute data collection runs, data are reported as mean ± SEM
From: Prolonged cycling lowers subsequent running mechanical efficiency in collegiate triathletes
Variable | Cycle-Run | Run–Run | p-value |
|---|---|---|---|
Mechanical efficiency (%) | 42.1 ± 2.5 | 48.2 ± 2.5 | 0.027* |
Relative RE (%VO2peak) | 74.8 ± 9.3 | 74.1 ± 7.8 | 0.771 |
Absolute RE (L•min−1) | 6.5 ± 1.3 | 6.4 ± 1.2 | 0.804 |
Mechanical work (kJ) | 61.4 ± 2.0 | 64.0 ± 1.8 | 0.111 |
Net energy expenditure (kJ) | 151.0 ± 12.3 | 136.6 ± 9.6 | 0.204 |
Aerobic energy expenditure (kJ) | 134.7 ± 12.3 | 129.1 ± 10.5 | 0.549 |
Anaerobic energy expenditure (kJ) | 16.3 ± 2.4 | 7.6 ± 1.1 | 0.004* |
Blood lactate (fold-change) | 3.82 ± 0.53 | 3.07 ± 0.69 | 0.179 |
RER (ratio) | 0.96 ± 0.05 | 0.93 ± 0.02 | 0.531 |
Muscle glycogen (% change) | − 16.0 ± 6.0 | − 17.0 ± 9.0 | 0.860 |