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Endurance exercise training increases peripheral vascular response in human fingers
K Katayama1, M Shimoda, J Maeda
1Research Center of Health, Physical Fitness and Sports, Nagoya University, Chikusa-ku, Nagoya, 464-8601, Japan. keishok@tsuru.med.nagoya-u.ac.jp
The Japanese Journal of Physiology
|December 16, 1998
Summary
Endurance exercise training significantly enhances peripheral vascular response to changes in transmural pressure in the finger. This training improves blood flow regulation and arterial compliance, as shown by increased digital photoplethysmogram responses and arterial compliance index.
Area of Science:
- Physiology
- Exercise Science
- Cardiovascular Research
Background:
- Peripheral vascular response to transmural pressure is crucial for blood flow regulation.
- The impact of endurance exercise training on these responses requires further elucidation.
Purpose of the Study:
- To investigate whether endurance exercise training alters peripheral vascular response to transmural pressure changes in healthy males.
Main Methods:
- Healthy males underwent 8 weeks of cycle ergometer training (5 days/week, 30 min/day).
- Peripheral vascular response was assessed using differential digital photoplethysmogram (DeltaDPG) and blood pressure measurements at various arm positions.
- Arterial compliance index was calculated from DeltaDPG and pulse pressure.
Main Results:
- Endurance training significantly increased DeltaDPG response to pressure alterations in both lowered and elevated arm positions (p<0.05).
- The arterial compliance index showed significant improvements following training.
- Maximal oxygen uptake (V.O2 max) significantly increased in the training group, unlike the control group.
Conclusions:
- Eight weeks of endurance exercise training enhances peripheral vascular responsiveness to transmural pressure variations in the human finger.
- Training-induced adaptations improve vascular function and arterial compliance.