[Dynamics of cardiac rhythm in the transitional period during controlled physical exercises in persons of various ages].
The transitional cardiac rhythm processes of work-in and recovery under standard dynamic loads of 25 and 50 W were studied in 90 healthy people aged 20-89 and in 15 elderly people being trained for endurance. The rhythmographic method was used for that purpose. Duration of the transitional processes (work-in and recovery) was revealed to considerably increase with age, while the cardiac rhythm increment--to decrease within the first 10 seconds of the work-in period. The data obtained suggest a worsened quality of the cardiac rhythm regulation in the transitional periods during aging, that is a result of an impairment of the vegetative influences on the sinoatrial node.
Korkushko
O V
OV
Shatilo
V B
VB
Iaroshenko
Iu T
IuT
Shatilo
T B
TB
D000328:Adult; D000367:Age Factors; D000368:Aged; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D010807:Physical Endurance; D005082:Physical Exertion; D014938:Work Capacity Evaluation
Dinamika serdechnogo ritma v perekhodnye periody pri dozirovannykh fizicheskikh nagruzkakh u liudeĭ raznogo vozrasta.