Effects of physical training and detraining on resting cardiovascular parameters in albino rats

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The time course of shifts induced by physical training in the resting cardiovascular parameters was investigated in swim-trained albino rats. Measurements were performed weekly, both during a 14-weeks training period and 5 weeks after cessation of regular swimming. Cardiac output (dye dilution) blood pressure (electromanometry) and heart rate (ECG) were measured under intraperitoneal urethan anasthesia. In comparison with non-exercising controls, rats at the end of the training period displayed lower heart rate, smaller stroke volume and cardiac output, and a higher peripheral resistance. The early phase of regular training, however, was characterized by an elevated cardiac output, heart rate and stroke volume, and by a decreased peripheral resistance. After discontinuation of regular training, cardiac output was elevated as well, but this was brought about only by the increased stroke volume, because resting heart rate was still lower than in the controls. Blood pressure did not change during the whole experimental period. Considering that similar shifts have been reported in humans, the changes in the resting cardiovascular status may be responsible for the similar complaints and symptoms often observed in undertrained athletes or in athletes who had interrupted high intensity regular training.

Original languageEnglish
Pages (from-to)27-37
Number of pages11
JournalActa Physiologica Hungarica
Volume66
Issue number1
Publication statusPublished - 1985

Fingerprint

Heart Rate
Cardiac Output
Stroke Volume
Athletes
Vascular Resistance
High Cardiac Output
Blood Pressure
Cardiac Volume
Urethane
Electrocardiography
Coloring Agents

ASJC Scopus subject areas

  • Physiology

Cite this

Effects of physical training and detraining on resting cardiovascular parameters in albino rats. / Pavlik, G.

In: Acta Physiologica Hungarica, Vol. 66, No. 1, 1985, p. 27-37.

Research output: Contribution to journalArticle

@article{40840285f09e4c059e5782df5226dd00,
title = "Effects of physical training and detraining on resting cardiovascular parameters in albino rats",
abstract = "The time course of shifts induced by physical training in the resting cardiovascular parameters was investigated in swim-trained albino rats. Measurements were performed weekly, both during a 14-weeks training period and 5 weeks after cessation of regular swimming. Cardiac output (dye dilution) blood pressure (electromanometry) and heart rate (ECG) were measured under intraperitoneal urethan anasthesia. In comparison with non-exercising controls, rats at the end of the training period displayed lower heart rate, smaller stroke volume and cardiac output, and a higher peripheral resistance. The early phase of regular training, however, was characterized by an elevated cardiac output, heart rate and stroke volume, and by a decreased peripheral resistance. After discontinuation of regular training, cardiac output was elevated as well, but this was brought about only by the increased stroke volume, because resting heart rate was still lower than in the controls. Blood pressure did not change during the whole experimental period. Considering that similar shifts have been reported in humans, the changes in the resting cardiovascular status may be responsible for the similar complaints and symptoms often observed in undertrained athletes or in athletes who had interrupted high intensity regular training.",
author = "G. Pavlik",
year = "1985",
language = "English",
volume = "66",
pages = "27--37",
journal = "Physiology International",
issn = "2498-602X",
publisher = "Akademiai Kiado",
number = "1",

}

TY - JOUR

T1 - Effects of physical training and detraining on resting cardiovascular parameters in albino rats

AU - Pavlik, G.

PY - 1985

Y1 - 1985

N2 - The time course of shifts induced by physical training in the resting cardiovascular parameters was investigated in swim-trained albino rats. Measurements were performed weekly, both during a 14-weeks training period and 5 weeks after cessation of regular swimming. Cardiac output (dye dilution) blood pressure (electromanometry) and heart rate (ECG) were measured under intraperitoneal urethan anasthesia. In comparison with non-exercising controls, rats at the end of the training period displayed lower heart rate, smaller stroke volume and cardiac output, and a higher peripheral resistance. The early phase of regular training, however, was characterized by an elevated cardiac output, heart rate and stroke volume, and by a decreased peripheral resistance. After discontinuation of regular training, cardiac output was elevated as well, but this was brought about only by the increased stroke volume, because resting heart rate was still lower than in the controls. Blood pressure did not change during the whole experimental period. Considering that similar shifts have been reported in humans, the changes in the resting cardiovascular status may be responsible for the similar complaints and symptoms often observed in undertrained athletes or in athletes who had interrupted high intensity regular training.

AB - The time course of shifts induced by physical training in the resting cardiovascular parameters was investigated in swim-trained albino rats. Measurements were performed weekly, both during a 14-weeks training period and 5 weeks after cessation of regular swimming. Cardiac output (dye dilution) blood pressure (electromanometry) and heart rate (ECG) were measured under intraperitoneal urethan anasthesia. In comparison with non-exercising controls, rats at the end of the training period displayed lower heart rate, smaller stroke volume and cardiac output, and a higher peripheral resistance. The early phase of regular training, however, was characterized by an elevated cardiac output, heart rate and stroke volume, and by a decreased peripheral resistance. After discontinuation of regular training, cardiac output was elevated as well, but this was brought about only by the increased stroke volume, because resting heart rate was still lower than in the controls. Blood pressure did not change during the whole experimental period. Considering that similar shifts have been reported in humans, the changes in the resting cardiovascular status may be responsible for the similar complaints and symptoms often observed in undertrained athletes or in athletes who had interrupted high intensity regular training.

UR - http://www.scopus.com/inward/record.url?scp=0022254390&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022254390&partnerID=8YFLogxK

M3 - Article

C2 - 4036641

AN - SCOPUS:0022254390

VL - 66

SP - 27

EP - 37

JO - Physiology International

JF - Physiology International

SN - 2498-602X

IS - 1

ER -