Gas exchange during exercise in healthy people. I. The physiological dead-space volume. 1976

C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock

1. Physiological dead-space volume (V D) was measured in twenty-four healthy men and women aged from 20 to 71 years, at rest and at two rates of work on a treadmill, whilst breathing air and breathing oxygen. 2. The effect of correction of arterial carbon dioxide tension (Pa,CO2) to pulmonary capillary temperature on the resulting value for V D was investigated. We find that the effect is substantial and that a correction should be made. 3. Equations have been derived for the prediction of normal V D during exercise. The best prediction was given by a regression on height, age, carbon dioxide output, ventilation and respiratory frequency, with an upper 95% confidence limit of +81 ml.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010100 Oxygen An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. Dioxygen,Oxygen-16,Oxygen 16
D012126 Respiratory Dead Space That part of the RESPIRATORY TRACT or the air within the respiratory tract that does not exchange OXYGEN and CARBON DIOXIDE with pulmonary capillary blood. Dead Space, Respiratory,Dead Spaces, Respiratory,Respiratory Dead Spaces,Space, Respiratory Dead,Spaces, Respiratory Dead
D001831 Body Temperature The measure of the level of heat of a human or animal. Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D002196 Capillaries The minute vessels that connect arterioles and venules. Capillary Beds,Sinusoidal Beds,Sinusoids,Bed, Sinusoidal,Beds, Sinusoidal,Capillary,Capillary Bed,Sinusoid,Sinusoidal Bed
D002245 Carbon Dioxide A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D005082 Physical Exertion Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included. Physical Effort,Effort, Physical,Efforts, Physical,Exertion, Physical,Exertions, Physical,Physical Efforts,Physical Exertions
D005260 Female Females

Related Publications

C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
October 1982, Kokyu to junkan. Respiration & circulation,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
August 1966, Clinical science,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
August 1995, Burns : journal of the International Society for Burn Injuries,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
October 1976, Clinical science and molecular medicine,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
December 1956, Acta physiologica Scandinavica,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
April 2020, Chest,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
March 1987, DTW. Deutsche tierarztliche Wochenschrift,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
November 2004, Revue des maladies respiratoires,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
May 1993, Pediatric pulmonology,
C A Bradley, and E A Harris, and E R Seelye, and R M Whitlock
February 1990, Medicine and science in sports and exercise,
Copied contents to your clipboard!