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Exercise-induced asthma and cardiovascular fitness in asthmatic children. 1996

B J Thio, and A F Nagelkerke, and A G Ketel, and B L van Keeken, and J E Dankert-Roelse
Department of Paediatric Pulmonogy, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, Netherlands.

BACKGROUND The role of physical training in the management of children with exercise-induced asthma is controversial. A study was undertaken to determine whether a relationship could be found between the occurrence of exercise-induced asthma and the degree of cardiovascular fitness in asthmatic children. METHODS Twenty eight children aged 6-13 with mild to moderate asthma and dyspnoea during or after physical exercise were tested. All patients had a basal forced expiratory volume in one second (FEV1) of > 80% predicted. Twelve patients were taking corticosteroid maintenance medication by inhalation and 16 were not. Two exercise tests were performed on a treadmill to assess peak oxygen consumption rate (VO2max) and the percentage decrease in FEV1 after exercise. RESULTS There was no correlation between the VO2max and the percentage decrease in FEV1. Patients not taking steroids showed a greater fall in FEV1 than those receiving corticosteroid medication (mean fall in FEV1 28.7% versus 6.6%). Four of the 12 children treated with steroids and two of the 16 children not taking steroids had a level of cardiovascular fitness lower than the 5th percentile for healthy Dutch children. CONCLUSIONS Normal cardiovascular fitness does not prevent exercise-induced asthma.

UI MeSH Term Description Entries
D008297 Male Males
D010101 Oxygen Consumption The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346) Consumption, Oxygen,Consumptions, Oxygen,Oxygen Consumptions
D010809 Physical Fitness The ability to carry out daily tasks and perform physical activities in a highly functional state, often as a result of physical conditioning. Fitness, Physical
D001993 Bronchodilator Agents Agents that cause an increase in the expansion of a bronchus or bronchial tubes. Bronchial-Dilating Agents,Bronchodilator,Bronchodilator Agent,Broncholytic Agent,Bronchodilator Effect,Bronchodilator Effects,Bronchodilators,Broncholytic Agents,Broncholytic Effect,Broncholytic Effects,Agent, Bronchodilator,Agent, Broncholytic,Agents, Bronchial-Dilating,Agents, Bronchodilator,Agents, Broncholytic,Bronchial Dilating Agents,Effect, Bronchodilator,Effect, Broncholytic,Effects, Bronchodilator,Effects, Broncholytic
D002320 Cardiovascular Physiological Phenomena Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts. Cardiovascular Physiologic Processes,Cardiovascular Physiological Processes,Cardiovascular Physiology,Cardiovascular Physiological Concepts,Cardiovascular Physiological Phenomenon,Cardiovascular Physiological Process,Physiology, Cardiovascular,Cardiovascular Physiological Concept,Cardiovascular Physiological Phenomenas,Concept, Cardiovascular Physiological,Concepts, Cardiovascular Physiological,Phenomena, Cardiovascular Physiological,Phenomenon, Cardiovascular Physiological,Physiologic Processes, Cardiovascular,Physiological Concept, Cardiovascular,Physiological Concepts, Cardiovascular,Physiological Phenomena, Cardiovascular,Physiological Phenomenon, Cardiovascular,Physiological Process, Cardiovascular,Physiological Processes, Cardiovascular,Process, Cardiovascular Physiological,Processes, Cardiovascular Physiologic,Processes, Cardiovascular Physiological
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005080 Exercise Test Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. Arm Ergometry Test,Bicycle Ergometry Test,Cardiopulmonary Exercise Testing,Exercise Testing,Step Test,Stress Test,Treadmill Test,Cardiopulmonary Exercise Test,EuroFit Tests,Eurofit Test Battery,European Fitness Testing Battery,Fitness Testing,Physical Fitness Testing,Arm Ergometry Tests,Bicycle Ergometry Tests,Cardiopulmonary Exercise Tests,Ergometry Test, Arm,Ergometry Test, Bicycle,Ergometry Tests, Arm,Ergometry Tests, Bicycle,EuroFit Test,Eurofit Test Batteries,Exercise Test, Cardiopulmonary,Exercise Testing, Cardiopulmonary,Exercise Tests,Exercise Tests, Cardiopulmonary,Fitness Testing, Physical,Fitness Testings,Step Tests,Stress Tests,Test Battery, Eurofit,Test, Arm Ergometry,Test, Bicycle Ergometry,Test, Cardiopulmonary Exercise,Test, EuroFit,Test, Exercise,Test, Step,Test, Stress,Test, Treadmill,Testing, Cardiopulmonary Exercise,Testing, Exercise,Testing, Fitness,Testing, Physical Fitness,Tests, Arm Ergometry,Tests, Bicycle Ergometry,Tests, Cardiopulmonary Exercise,Tests, EuroFit,Tests, Exercise,Tests, Step,Tests, Stress,Tests, Treadmill,Treadmill Tests
D005260 Female Females
D005541 Forced Expiratory Volume Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity. Forced Vital Capacity, Timed,Timed Vital Capacity,Vital Capacity, Timed,FEVt,Capacities, Timed Vital,Capacity, Timed Vital,Expiratory Volume, Forced,Expiratory Volumes, Forced,Forced Expiratory Volumes,Timed Vital Capacities,Vital Capacities, Timed,Volume, Forced Expiratory,Volumes, Forced Expiratory
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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