. Author manuscript; available in PMC: 2010 Jan 12.

Published in final edited form as: Respir Physiol Neurobiol. 2008 Jul 5;162(3):204–209. doi: 10.1016/j.resp.2008.06.020

Table 2.

Physiological responses measured pre-exercise, during exercise and in recovery

	Pre-exercise	Load 1	Load 2	Recovery
Power (W)	Rest	34 ± 5	68 ± 10	Rest
V̇O₂ (l min⁻¹)	0.37 ± 0.08	0.92 ± 0.18^*	1.32 ± 0.17^*	0.41 ± 0.08
V̇_e (l min⁻¹)	13.2 ± 3.6	22.4 ± 5.4^*	32.2 ± 6.7^*	13.9 ± 4.7
P_ETCO₂ (mmHg)	33 ± 4	37 ± 3^*	38 ± 4^*	33 ± 3
HR (beats min⁻¹)	74 ± 9	89 ± 8^*	106 ± 9^*	76 ± 13
Q̇_tot (l min⁻¹)	5.3 ± 1. 3	7.6 ± 1.2^*	9.8 ± 1. 3 ^*	5.1 ± 1.1
MAP (mmHg)	80 ± 10	85 ± 9^*	93 ± 9^*	84 ± 10
Q̇_aw (µlml⁻¹ min⁻¹)	52.8 ± 19.5	67.0 ± 20.3^*	84.0 ± 22.9^*	51.7 ± 13.2
BVR (units)	1.7 ± 0.7	1.4 ± 0.6^*	1.2 ± 0.3^*	1. 7 ± 0.4

Results are mean ± S.D. VO₂: oxygen uptake; V̇_E: minute ventilation. P_ETCO₂: endtidal carbon dioxide; HR: heart rate; Q̇_tot: cardiac output; MAP: mean arterial pressure; Q̇_aw: airway blood flow. AVR (units): BVR (mmHg (µl ml⁻¹ min⁻¹)⁻¹).

P < 0.05, different from pre-exercise mean.