What question did this study set out to answer?

This research investigates how different body positions affect cardiac output and respiration rates.

July 22, 1937Quarterly journal of experimental physiologyOpen Access

Postural Changes in Cardiac Output and Respiration in Man

View Full Paper

Ask AI

Bookmark

Authors

JMJ. McMichaelBritish School at Rome EJEmily JohnstonNew York Proton Center

Discussion

Member takes

Implication

Randomized trial examines the effects of posture on cardiac output and respiration in normal subjects, implicating significant physiological implications.

Key Points

This research investigates how different body positions affect cardiac output and respiration rates.
Normal subjects were tested in different postures (erect vs. reclining) to measure cardiac output and respiration.
Acetylene method and Van Slyke manometric apparatus were utilized to determine cardiac output.
Pulmonary ventilation was measured alongside changes in posture.
Erect position led to an increase in arterio-venous oxygen difference and a drop in cardiac output.
Quick change from erect to flat position resulted in an immediate increase in cardiac output, matching acetylene method calculations.
Higher pulmonary ventilation was recorded per 100 c.c. of oxygen consumed in the erect position compared to reclining.

Cite This Study

McMichael et al. (1937) studied this question.

synapsesocial.com/papers/6a7057b4f44fa9f079ddf729 https://doi.org/10.1113/expphysiol.1937.sp000736

View Full Paper

Ask AI

Bookmark

Implication

Randomized trial examines the effects of posture on cardiac output and respiration in normal subjects, implicating significant physiological implications.

Postural Changes in Cardiac Output and Respiration in Man

Discussion

Member takes

Implication

Key Points

Cite This Study

Postural Changes in Cardiac Output and Respiration in Man

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider