Age, years | |||||||
18–22 | 23–27 | 28–32 | 33–37 | 38–42 | 43–68 | All | |
VO2peak, L min−1 | 3.15±0.99 | 2.72±0.86 | 2.76±1.07 | 3.15±1.03 | 3.17±0.71 | 2.76±1.06 | 2.95±0.99 |
VO2peak, mL kg−1 min−1 | 46.4±11.0 | 39.3±10.9 | 38.4±13.1 | 40.0±10.7 | 41.8±7.9 | 34.0±10.6 | 40.5±11.6 |
VO2peak, % predicted | 89±21 | 79±22 | 81±28 | 87±23 | 96±18 | 87±26 | 86±23 |
VT, L min−1 | 2.03±0.59 | 1.97±0.42 | 1.96±0.56 | 2.13±0.45 | 2.08±0.40 | 1.97±0.50 | 2.02±0.50 |
VT, % of VO2peak | 58±9 | 68±15 | 69±19 | 62±15 | 66±14 | 72±14 | 65±14 |
HRmax, beats min−1 | 186±12 | 173±16 | 177±14 | 178±18 | 174±7 | 166±13 | 177±15 |
Oxygen pulse, mL beat−1 | 16.8±4.8 | 15.4±4.2 | 15.4±5.5 | 17.5±4.9 | 18.2±3.8 | 16.5±6.1 | 16.5±5.0 |
VE, L min−1 | 112±36 | 92±33 | 93±39 | 108±42 | 117±31 | 95±34 | 102±37 |
Breathing reserve, % | 24±14 | 26±12 | 25±19 | 23±15 | 16±9 | 26±12 | 24±14 |
SpO2, % | 93±4 | 91±4 | 88±7 | 88±8 | 89±5 | 91±5 | 90±6 |
RER | 1.23±0.11 | 1.21±0.13 | 1.18±0.15 | 1.19±0.09 | 1.23±0.09 | 1.18±0.09 | 1.20±0.11 |
RPE (BORG 6–20) | 18 (15–19) | 18 (13–19) | 17 (15–20) | 18 (16–19) | 18.5 (17–20) | 18 (17–19) | 18 (13–20) |
VE/VCO2 slope | 25.1±3.6 | 24.5±3.9 | 25.4±2.6 | 25.4±2.9 | 26.6±1.8 | 26.6±3.8 | 25.5±3.3 |
Data are presented as mean±SD, median (range) or N.
HRmax, maximal heart rate; RER, respiratory exchange ratio (VCO2VO2-1); RPE, ratings of perceived exertion; SpO2, peripheral capillary oxygen saturation; VE, minute ventilation; VE/VCO2, ventilatory equivalent for carbon dioxide; VO2peak, peak oxygen uptake; VT, ventilatory threshold.