Table 3.

End-expiratory esophageal pressure (P_es) before stimuli, and M-wave data

End-Expiratory Pes	50% TTE	75% TTE	100% TTE
Baseline, cmH2O	−1.9 ± 0.7	−2.3 ± 1.1	−2.5 ± 0.6
Post 5 min, cmH2O	−3.1 ± 0.6	−4.0 ± 0.9	−3.7 ± 0.7
Post 15 min, cmH2O	−2.9 ± 0.2	−2.9 ± 1.0	−3.5 ± 0.6
Post 30 min, cmH2O	−2.1 ± 0.3	−2.5 ± 0.3	−2.8 ± 0.7

	Left Hemidiaphragm		Right Hemidiaphragm
M-Wave Characteristic	Baseline	Postexercise	Baseline	Postexercise
Latency, ms	5.1 ± 0.5	4.9 ± 0.9	4.4 ± 0.2	4.3 ± 0.2
Duration, ms	40.6 ± 8.3	40.8 ± 4.1	40.6 ± 8.4	44.4 ± 2.2
Amplitude, mV	4.5 ± 1.1	4.6 ± 0.9	4.4 ± 1.4	4.7 ± 1.4
Area, mV/ms	38.4 ± 7.6	41.1 ± 8.2	37.5 ± 9.3	41.8 ± 10.8

Values are means ± SD.