Heterogeneity of intrapleural pressures during exercise

Normal Intrapleural Pressures among Indians

Intrapleural Pressures in Congestive Heart Failure

Intrapleural Pressures on the Contralateral Side in Pleurisy with Effusion

The intrapleural pressures on the contralateral side in pleurisy with effusion were within the normal range, the normal intrapleural pressures among Indians being ?14 to ?3 cm. of water during inspiration, ?10 to 0 cm. water during expiration, and the mean pressure ?12 to ?2 cm. water (Laha, 1946). Neither the amount nor the duration of effusion had any effect on the intrapleural pressures on t...

Evolution of inspiratory and expiratory muscle pressures during endurance exercise.

We investigated the relationship between minute ventilation (VE) and net respiratory muscle pressure (Pmus) throughout the breathing cycle [Total Pmus = mean Pmus, I (inspiratory) + mean Pmus, E (expiratory)] in six normal subjects performing constant-work heavy exercise (CWHE, at approximately 80% maximum) to exhaustion on a cycle ergometer. Pmus was calculated as the sum of chest wall pressur...

Speech intelligibility during exercise at normal and increased atmospheric pressures.

The purpose of this study was to assess the effects of work loads at increased atmospheric pressures on speech intelligibility. Six subjects were exposed to depths equivalent to 0, 50, 100 and 150 feet of sea water. At each depth, the subjects recorded one 25 word PB list at each of four work loads 0, 50, 100 and 150 watts. Subjects were exercised on an ergometer and pedalling was maintained at...