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RESPIRATORY RESPONSES TO CO 2 ‐REBREATHING IN NIGERIAN MEN
Author(s) -
Patrick J. M.
Publication year - 1976
Publication title -
quarterly journal of experimental physiology and cognate medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0033-5541
DOI - 10.1113/expphysiol.1976.sp002349
Subject(s) - nigerians , tidal volume , ventilation (architecture) , lung function , anthropometry , lung volumes , respiratory system , respiratory minute volume , cardiology , medicine , anesthesia , lung , geography , meteorology , political science , law
In 36 young Nigerian men, ventilatory capacity and the changes in ventilation, tidal volume and tidal P co 2 during oxic CO 2 ‐rebreathing have been measured. CO 2 response lines and breathing rhythms have been determined and analysed in relation to the anthropometric and lung function data. Previous findings that Nigerian men have a substantially lower ventilatory capacity than Europeans at a standard height and age are confirmed. Breathing rhythms in Nigerians appear to be the same as in other ethnic groups studied. CO 2 ‐sensitivity varies with FVC, as found previously in Europeans and New Guineans. However, at a standard FVC of 4 l, Nigerian men have the same CO 2 ‐ sensitivity as Europeans, and not a lower value like New Guineans.