Duration of the phases of left ventricular mechanical systole in healthy men aged 45 to 64 years.
D000367:Age Factors; D006339:Heart Rate; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D013997:Time Factors; D016276:Ventricular Function