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Table 3 Absolute values of transdiaphragmatic twitch pressure during cervical magnetic stimulation and gastric twitch pressure during thoracic magnetic stimulation before and after the 15-min hyperpnoea test in normoxia, hypoxia and hyperoxia

From: Effect of acute hypoxia on respiratory muscle fatigue in healthy humans

  Normoxia Hypoxia Hyperoxia
Pdi,tw    
   Before 30.6 (8.9) 31.4 (8.7) 31.7 (9.3)
   Post 0 23.8 (6.6) 20.9 (7.3) 24.8 (6.4)
   Post 30 27.5 (7.6) 26.6 (6.7) 28.7 (7.2)
Pga,tw    
   Before 31.7 (7.1) 33.9 (7.9) 32.9 (9.2)
   Post 0 25.9 (5.0) 24.6 (5.0) 27.0 (6.2)
   Post 30 27.6 (6.2) 26.5 (8.0) 28.7 (8.3)
  1. Values are means (SD). Pdi,tw , transdiaphragmatic twitch pressure during cervical magnetic stimulation; Pga,tw , gastric twitch pressure during thoracic magnetic stimulation; Before, before hyperpnoea; Post 0, immediately after hyperpnoea; Post 30, 30 min after hyperpnoea.