Neural and humoral factors affecting ventilatory response during exercise.
نویسندگان
چکیده
منابع مشابه
Neural and humoral factors affecting ventilatory response during exercise.
The principle of feedback control is thought to be fundamental for maintaining homeostasis in biological systems. In the respiratory system, constancy of arterial Pcoz, Poz, and pH is also maintained essentially by means of a feedback control system. For the sake of simplicity, let's assume that the respiratory system is regulated by only one controlled variable, Pa~oz. According to control the...
متن کاملVentilatory drive and ventilatory response during rebreathing.
Maranetra, N. and Pain, M. C. F. (1974). Thorax, 29, 578-581. Ventilatory drive and ventilatory response during rebreathing. The increase in inspiratory airway pressure generated against a transiently occluded airway during rebreathing is proposed as a simple index of ventilatory drive (zlP/dPCO2). A study of this index in 12 normal subjects and 50 patients with chronic airways obstruction demo...
متن کاملFactors affecting ventilatory function in the child with asthma.
Exacerbations of asthma in children are often attributed to events producing stress or excitement, climatic changes, and infections; Peshkin (1959) showed that a marked clinical improvement often occurred on removing a child from his home environment. Purcell (1963), interviewing 20 asthmatic children described as rapidly remitting on withdrawal from their home environment, found that 15 of the...
متن کاملLeptin and the ventilatory response to exercise in heart failure.
OBJECTIVES The aim of the study was to test the hypothesis that leptin is involved in the regulation of ventilatory responses to exercise in chronic heart failure (CHF). BACKGROUND Exercise-induced hyperventilation is a negative prognostic factor in CHF. Studies in animals suggest that leptin, a hormone secreted by adipocytes, contributes to the regulation of respiration. Plasma leptin levels...
متن کاملAltered breathing mechanics and ventilatory response during exercise in children born extremely preterm
BACKGROUND Extreme preterm birth confers risk of long-term impairments in lung function and exercise capacity. There are limited data on the factors contributing to exercise limitation following extreme preterm birth. This study examined respiratory mechanics and ventilatory response during exercise in a large cohort of children born extremely preterm (EP). METHODS This cohort study included ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1989
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.39.199