Document Detail

Mobilization of cardiovascular function during the constant-load and all-out exercise tests.
MedLine Citation:
PMID:  16401962     Owner:  NLM     Status:  MEDLINE    
The problem of evaluating the mobilization of body functioning during exercise combines two questions: first, the velocity of adaptation at onset of exercise, and second, to what extent the body function was mobilized. The aim of this study was to find out the peculiarities in mobilization of cardiovascular function during constant-load and all-out exercise tests in non-athletes and sportsmen: cohorts of sprinters, endurance and combat athletes. Every subject underwent a Roufier's test (30 squats per 45 seconds), a 30-second duration maximal vertical jump test, and a bicycle ergometry (graded stress). Indirect arterial blood pressure measurements were taken from the arm with a sphygmomanometer and standard-size arm cuff and various indices registered in 12-lead electrocardiogram (ECG) using a computerized ECG analysis system "Kaunas-load" were analyzed. The results obtained during the study showed that the change in ratio of JR/RR intervals of ECG allows assessing the dynamics of mobilization of cardiovascular system during the exercise tests or workouts. The greater mobilization of cardiovascular system when performing constant-load exercise tests is rather characteristic for non-athletes than sportsmen's cohorts. Constant-load exercise tests rather than all-out exercise tests are more suitable for assessments of individual peculiarities or differences between the cohorts. The individual peculiarities in velocity of adaptation of cardiovascular system at onset of exercise can be evaluated making use of the index of velocity of adaptation (V(Ad)), which represents the difference between the relative changes of JT and RR intervals of ECG. Velocity of adaptation at onset of exercise depends on the residual effects of training but not on the type of exercise test.
Jonas Poderys; Alfonsas Buliuolis; Kristina Poderyte; Rita Sadzeviciene
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Medicina (Kaunas, Lithuania)     Volume:  41     ISSN:  1648-9144     ISO Abbreviation:  Medicina (Kaunas)     Publication Date:  2005  
Date Detail:
Created Date:  2006-01-10     Completed Date:  2006-03-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9425208     Medline TA:  Medicina (Kaunas)     Country:  Lithuania    
Other Details:
Languages:  eng     Pagination:  1048-53     Citation Subset:  IM    
Laboratory of Kinesiology, Lithuanian Academy of Physical Education, Kaunas, Lithuania.
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MeSH Terms
Adaptation, Physiological
Blood Pressure / physiology
Cardiovascular Physiological Phenomena*
Cohort Studies
Data Interpretation, Statistical
Exercise Test* / methods
Models, Cardiovascular
Physical Endurance
Sports / physiology*

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