Table 4.

Changes in Cardiorespiratory Function by Group

	NEG (n = 4)	LI (n = 11)	HI (n = 10)	p - value
Aerobic capacity
ΔPeak VO2, ml/kg/min	−2.4 ± 1.9	0.6 ± 3.3	2.2 ± 6.3	.261
ΔTime at AT, sec	14.0 ± 91.4	67.4 ± 89.5	118.6 ± 121.2	.229
Ventilatory capacity
ΔVE at peak, L/min	1.0 ± 14.2	0.9 ± 7.1	1.5 ± 9.5	.990
ΔPeak respiratory rate breaths/min	3.3 ± 5.9	0.1 ± 7.2	−0.7 ± 7.2	.618
ΔVE/VO2 at peak	7.1 ± 6.0	−0.1 ± 6.0	−2.2 ± 6.5	.058
ΔEnd tidal O2, mmHg	1.7 ± 3.9	2.2 ± 12.3	−0.5 ± 5.3	.788
Cardiovascular capacity
ΔPeak HR, bpm	−14.5 ± 11.8	−5.0 ± 15.5	−0.6 ± 12.0	.253
ΔPeak SV, ml	2.7 ± 12.2a	−4.3 ±24.6	19.8 ± 60.4b	.435
ΔPeak Qt, L	0.7 ± 1.5a	−1.1 ± 3.7	3.04 ± 9.0b	.344

Definition of abbreviations: Δ denotes the change after AET from baseline measures during the cardiopulmonary exercise test; VO₂ = oxygen consumption; AT = anaerobic threshold; VE = minute ventilation; VE/VCO₂ = ventilatory equivalent for carbon dioxide, VE/VO₂ = ventilatory equivalent for oxygen; O₂ = oxygen; CO₂ = carbon dioxide; HR = heart rate; SV = stroke volume; Qt = cardiac output; All values are change values after AET; p-values are for ANCOVA within group main effects Values are expressed as mean ± SD

^aDue to equipment malfunction, n = 3

^bDue to equipment malfunction, n = 7