Abstract des Autors

The ability of adult men accurately to count their postexercise heart rate in the course of actual training was determined, and postexercise heart rate estimation with values determined during running were compared. Subjects were 37 men (30-45 years of age), who practiced the palpation technique of counting the carotid or apical pulse prior to data collection. Subjects then ran at a steady heart rate of 80% or 90% of maximum. Heart rates were counted after a 1/2- to 2-mile run. Heart rates were also monitored via biotelemetry and EKG recording systems, and recorded to the nearest 1/2 beat. Care was taken to insure that subjects and investigators had no knowledge of the others' results until after data were recorded. In 252 trials, the difference in estimating running heart rate biotelemetry (171,0 beats/min.) vs. postexercise count by subjects (169,4 beats/min.) was 2.0%. Postexercise values via biotelemetry and subject count (170,1 vs. 169,4 beats/min.) showed a 1% difference. When trials at 90% of maximal heart rate (N=142) were compared to 80% (N=110), no significant differences were noted. Values for the 90% group were telemetered at 174.0 beats/min. while running and 172,4 beats/min. while stopped, as compared to 166,9 and 165,4 beats/min. for the 80% group. It was concluded that training heart rates of 80% to 90% magnitude can be accurately estimated during recovery (beats/10 sec.), and that the palpation technique for estimating heart rate can be adequately determined by adult men while training. Verf.-Referat