Non-Invasive Ventilation Applied for Recovery from Exercise-Induced Diaphragmatic Fatigue

Table 3.: Exercise Parameters and Tests on Inspiratory Muscle Strength on Study Phase 2

		HEET 1		NIV	HEET 2
		I	II	III	IV	V
TwPmo	[kPa]	1.64 ± 0.40	1.43 ± 0.65	1.91 ± 0.65	1.79 ± 0.63	1.59 ± 0.68
TwPes	[kPa]	1.43 ± 0.42	1.24 ± 0.60	1.63 ± 0.60	1.63 ± 0.61	1.45 ± 0.60
TwPga	[kPa]	-1.20 ± 0.43	-1.10 ± 0.38	-1.14 ± 0.34	-1.16 ± 0.36	-1.01 ± 0.40
TwPdi	[kPa]	2.49 ± 0.62	2.22 ± 0.78	2.63 ± 0.85	2.69 ± 0.83	2.37 ± 0.87
PImax	[kPa]	12.0 ± 1.9	12.5 ± 1.7	12.2 ± 1.4	12.1 ± 1.7	12.5 ± 1.1
HR	[min^-1]	71 ± 12	184 ± 9	65 ± 9	67 ± 8	187 ± 9
BL	[mg/dl]	1.6 ± 0.4	11.2 ± 1.6	3.7 ± 1.5	2.3 ± 0.7	9.8 ± 2.2
PaO₂	[mmHg]	82.9 ± 7.4	99.9 ± 14.5	86.3 ± 17.7	83.0 ± 14.0	89.3 ± 12.0
PaCO₂	[mmHg]	37.8 ± 3.2	31.1 ± 4.4	30.6 ± 7.4	30.1 ± 6.9	30.1 ± 2.3
pH		7.41 ± 0.02	7.23 ± 0.03	7.45 ± 0.06	7.49 ± 0.07	7.25 ± 0.05

BL = blood lactate; HEET = heavy-intensity exercise testing; HR = heart rate; NIV = non-invasive ventilation; PaCO₂ = partial pressure of carbon dioxide; PaO₂ = partial pressure of oxygen; PImax = maximal inspiratory pressure; TwPdi = twitch transdiaphragmatic pressure; TwPes = twitch esophageal pressure; TwPga = twitch gastric pressure; TwPmo = twitch mouth pressure.