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The impact of different types of exercise on endothelial function and arterial stiffness

Session Best Posters session 5

Speaker Evangelos Oikonomou

Event : ESC Congress 2015

  • Topic : basic science
  • Sub-topic : Basic Science - Vascular Biology and Physiology
  • Session type : Best ePosters

Authors : D Athanasiou (Athens,GR), G Siasos (Athens,GR), G Terzis (Athens,GR), A Stasinaki (Athens,GR), E Dimitropoulos (Athens,GR), N Gouliopoulos (Athens,GR), E Oikonomou (Athens,GR), M Zaromytidou (Athens,GR), K Mourouzis (Athens,GR), D Tousoulis (Athens,GR)

Authors:
D. Athanasiou1 , G. Siasos1 , G. Terzis2 , A. Stasinaki1 , E. Dimitropoulos1 , N. Gouliopoulos1 , E. Oikonomou1 , M. Zaromytidou1 , K. Mourouzis1 , D. Tousoulis1 , 1University of Athens Medical School, 1st Cardiology Department, “Hippokration” Hospital - Athens - Greece , 2University of Athens, Faculty of Physical Education and Sport Science - Athens - Greece ,

Citation:
European Heart Journal ( 2015 ) 36 ( Abstract Supplement ), 722

Background: Exercise training is associated with favourable cardiovascular effects. Endothelial function and arterial stiffness has an independent predictive value for cardiovascular events.

Purpose: To investigate the acute effects of continuous moderate-intensity aerobic exercise (CAE), and moderate interval resistance exercise (IRE) on endothelial function and arterial stiffness in healthy subjects.

Methods: Twenty healthy men (mean aged 23±3 yr) were recruited in this cross over study. They participated in two exercise sessions: a) CAE: volume at 50% of maximum aerobic work on a cycle ergometer for 30 min and b) IRE: 3 sets of 15 repetitions, volume at 50% of 1 repetition maximum on leg press. Endothelial function was evaluated by flow-mediated dilation (FMD) in the brachial artery. Carotid femoral pulse wave velocity (PWV) was measured as an index of arterial stiffness. Measurements were carried out before and immediately after each exercise session.

Results: There was no significant difference in baseline measurements of the study group before CAE and IRE, concerning FMD measurements (6.37±1.48% vs. 6.44±1.97%, p=0.89), and PWV measurements (5.87±0.82m/sec vs. 5.65±0.67m/sec, p=0.11). Importantly, both CAE (8.67±2.53% vs. 6.37±1.48%, p<0.001) and IRE (8.20±1.82% vs. 6.44±1.97%, p=0.003) caused a significant improvement in FMD compared to baseline measurements. Interestingly, CAE has no significant impact on PWV (5.76±0.63m/sec vs. 5.87±0.82m/sec, p=0.26) while IRE caused an increase in PWV (6.05±0.77m/sec vs. 5.65±0.67m/sec, p=0.001) compared to baseline measurements.

Conclusion: Moderate intensity aerobic exercise and moderate interval resistant exercise can favourably affect endothelial function while interval resistant exercise can adversely affect central aortic stiffness. The diverse effects of different types of exercise on arterial wall properties highlighted the need to further evaluate their impact on cardiovascular health.

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