Physiological values in tennis players corresponding to the respiratory compensation point (RCP) in tennis field (FT) and treadmill (TT) tests (n = 9)
| Variable | FT | TT | p Value |
|---|---|---|---|
| Values are mean (SD). Bf, breathing frequency; HR, heart rate; HRmax, maximal heart rate; RER, respiratory exchange ration; VCO2, carbon dioxide production; VE, minute ventilation; VO2, oxygen uptake; VO2max, maximal oxygen uptake; Vt, tidal volume. | |||
| VO2 (ml/min/kg) | 53.8 (5.5) | 50.5 (7.6) | NS |
| VCO2 (ml/min/kg) | 56.0 (7.4) | 47.9 (7.0) | <0.01 |
| RER | 1.04 (0.04) | 0.95 (0.04) | <0.01 |
| VE (l/min) | 78.6 (14.0) | 87.3 (14.5) | <0.05 |
| HR (bpm) | 174.9 (5.4) | 179.3 (9.3) | NS |
| Bf (breaths/min) | 43.8 (8.7) | 53.3 (13.7) | <0.01 |
| Vt (l) | 1.88 (0.63) | 1.85 (0.56) | NS |
| %VO2max | 84.4 (6.5) | 85.5 (8.7) | NS |
| %HRmax | 92.1 (2.1) | 92.3 (2.1) | NS |