Relationship between reduced lower abdominal blood flows and heart rate in recovery following cycling exercise

Aim:  To examine the blood flow (BF) response in the lower abdomen (LAB) in recovery following upright cycling exercise at three levels of relative maximum pulmonary oxygen consumption () and the relationship of BFLAB to heart rate (HR) and target intensity. Methods:  For 11 healthy subjects, BF (Do...

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Bibliographic Details
Published in:Acta Physiologica 2012-03, Vol.204 (3), p.344-353
Main Authors: Osada, T., Iwane, H., Katsumura, T., Murase, N., Higuchi, H., Sakamoto, A., Hamaoka, T., Shimomitsu, T.
Format: Article
Language:English
Subjects:
Abdomen
Abdomen - blood supply
Adult
Analysis of Variance
Aorta, Abdominal - diagnostic imaging
Aorta, Abdominal - physiology
Bicycling
Biological and medical sciences
Blood Pressure
Doppler ultrasound
Exercise
Femoral Artery - diagnostic imaging
Femoral Artery - physiology
Fundamental and applied biological sciences. Psychology
Heart Rate
Humans
Linear Models
lower abdominal flow
Male
Muscle Contraction
Oxygen Consumption
Pulmonary Ventilation
recovery of cycling exercise
Recovery of Function
Regional Blood Flow
Splanchnic Circulation
Time Factors
Ultrasonography, Doppler
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Young Adult
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Summary:Aim:  To examine the blood flow (BF) response in the lower abdomen (LAB) in recovery following upright cycling exercise at three levels of relative maximum pulmonary oxygen consumption () and the relationship of BFLAB to heart rate (HR) and target intensity. Methods:  For 11 healthy subjects, BF (Doppler ultrasound) in the upper abdominal aorta (Ao) above the coeliac trunk and in the right femoral artery (RFA) was measured repeatedly for 720 s after the end of cycling exercises at target intensities of 30%, 50% and 85%, respectively. Blood flow in the lower abdomen (BFLAB) can be measured by subtracting bilateral BFFAs (≈twofolds of BFRFA) from BFAo. Change in BFLAB (or BFLAB volume) at any point was evaluated by difference between change in BFAo and in BFFAs. Heart rate and blood pressure were also measured. Results:  At 85%, significant reduction in BFLAB by approx. 89% was shown at 90 s and remained until 360 s. At 50%, reduction in BFLAB by approx. 33% was found at 90 s although it returned to pre‐exercise value at 120 s. On the contrary at 30%, BFLAB showed a light increase (
ISSN:1748-1708
1748-1716
DOI:10.1111/j.1748-1716.2011.02349.x