Cardiovascular stress associated with the recreational tennis play of middle-aged males.
D000328:Adult; D000367:Age Factors; D002318:Cardiovascular Diseases / Q000175:diagnosis; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D005082:Physical Exertion; D010809:Physical Fitness; D012120:Respiration Disorders / Q000175:diagnosis; D013177:Sports; D013715:Tennis