Biomaterial Database

A diagnostic cycle test for McArdle's disease. 2003

John Vissing, and Ronald G Haller

Department of Neurology and Copenhagen Muscle Research Center, National University Hospital, Rigshospitalet, Copenhagen, Denmark. vissing@rh.dk

We investigated whether the second wind phenomenon (ie, a decrease in heart rate and perceived exertion during exercise) is pathognomonic for McArdle's disease. Twenty-four patients with McArdle's disease, 17 healthy subjects, and 25 patients with other inborn errors of muscle metabolism cycled a constant workload for 15 minutes. In McArdle's disease patients, heart rate consistently decreased by 35 +/- 3 beats per minute from the 7(th) to the 15(th) minute of exercise, whereas heart rate increased progressively with exercise in all 42 control subjects. The findings indicate that cycling at a moderate, constant workload provides a specific, sensitive, and simple diagnostic test for McArdle's disease.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008661	Metabolism, Inborn Errors	Errors in metabolic processes resulting from inborn genetic mutations that are inherited or acquired in utero.	Inborn Errors of Metabolism,Metabolism Errors, Inborn,Error, Inborn Metabolism,Errors Metabolism, Inborn,Errors Metabolisms, Inborn,Errors, Inborn Metabolism,Inborn Errors Metabolism,Inborn Errors Metabolisms,Inborn Metabolism Error,Inborn Metabolism Errors,Metabolism Error, Inborn,Metabolism Inborn Error,Metabolism Inborn Errors,Metabolisms, Inborn Errors
D011237	Predictive Value of Tests	In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.	Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
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
D005081	Exercise Therapy	A regimen or plan of physical activities designed and prescribed for specific therapeutic goals. Its purpose is to restore normal musculoskeletal function or to reduce pain caused by diseases or injuries.	Rehabilitation Exercise,Remedial Exercise,Therapy, Exercise,Exercise Therapies,Exercise, Rehabilitation,Exercise, Remedial,Exercises, Rehabilitation,Exercises, Remedial,Rehabilitation Exercises,Remedial Exercises,Therapies, Exercise
D005260	Female		Females
D006012	Glycogen Storage Disease Type V	Glycogenosis due to muscle phosphorylase deficiency. Characterized by painful cramps following sustained exercise.	Glycogenosis 5,McArdle's Disease,Deficiency, Muscle Phosphorylase,Glycogen Storage Disease Type 5,Glycogen Storage Disease V,McArdle Disease,McArdle Type Glycogen Storage Disease,Mcardle Syndrome,Muscle Glycogen Phosphorylase Deficiency,Muscle Phosphorylase Deficiency,Myophosphorylase deficiency,PYGM Deficiency,Deficiencies, Muscle Phosphorylase,Deficiencies, PYGM,Deficiency, PYGM,Disease, McArdle,Disease, McArdle's,Glycogenosis 5s,McArdles Disease,Mcardle Syndromes,Muscle Phosphorylase Deficiencies,Myophosphorylase deficiencies,PYGM Deficiencies,Phosphorylase Deficiencies, Muscle,Phosphorylase Deficiency, Muscle,Syndrome, Mcardle,Syndromes, Mcardle,deficiencies, Myophosphorylase,deficiency, Myophosphorylase
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor