Blood flow differences in cun-kou (radial) artery and anterior tibial artery: normal people vs patients with chronic gastritis

Objective: This study aimed to investigate acute hemodynamics of lower extremities during enhanced external counterpulsation with a three-level sequence at the hips, thighs, and calves (EECP-3), two-level sequence at the hips and thighs (EECP-2), and single leg three-level sequence (EECP-1).Methods: Twenty healthy volunteers were recruited in this study to receive a 45-min EECP intervention. Blood flow spectrums in the anterior tibial artery, posterior tibial artery, and dorsalis pedis artery were imaged by Color Doppler ultrasound. Mean flow rate (FR), area, pulsatility index (PI), peak systolic velocity (PSV), end-diastolic velocity (EDV), mean flow velocity (MV), and systolic maximum acceleration (CCAs) were sequentially measured and calculated at baseline during EECP-3, EECP-1, and EECP-2.Results: During EECP-3, PI, PSV, and MV in the anterior tibial artery were significantly higher, while EDV was markedly lower during EECP-1, EECP-2, and baseline (all P < 0.05). Additionally, ACCs were significantly elevated during EECP-3 compared with baseline. Moreover, FR in the anterior tibial artery was significantly increased during EECP-3 compared with baseline (P = 0.048). During EECP-2, PI and MV in the dorsalis pedis artery were significantly higher and lower than those at baseline, (both P < 0.05). In addition, FR was markedly reduced during EECP-2 compared with baseline (P = 0.028). During EECP-1, the area was significantly lower, while EDV was markedly higher in the posterior tibial artery than during EECP-1, EECP-2, and baseline (all P < 0.05). Meanwhile, FR of the posterior tibial artery was significantly reduced compared with baseline (P = 0.014).Conclusion: Enhanced external counterpulsation with three-level sequence (EECP-3), EECP-2, and EECP-1 induced different hemodynamic responses in the anterior tibial artery, dorsalis pedis artery, and posterior tibial artery, respectively. EECP-3 acutely improved the blood flow, blood flow velocity, and ACCs of the anterior tibial artery. In addition, EECP-1 and EECP-2 significantly increased the blood flow velocity and peripheral resistance of the inferior knee artery, whereas they markedly reduced blood flow in the posterior tibial artery.

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Anterior Tibial Artery Blood Flow is Unaffected by Age during a Fatiguing Submaximal Dorsiflexor Contraction

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000477643.17145.21 ◽

2015 ◽

Vol 47 ◽

pp. 443

Author(s):

Chris J. McNeil ◽

Eric Olympico ◽

Charles L. Rice

Keyword(s):

Blood Flow ◽

Anterior Tibial Artery ◽

Artery Blood Flow ◽

Tibial Artery ◽

Anterior Tibial

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Blood flow and muscle oxygenation during low, moderate, and maximal sustained isometric contractions

AJP Regulatory Integrative and Comparative Physiology ◽

10.1152/ajpregu.00387.2014 ◽

2015 ◽

Vol 309 (5) ◽

pp. R475-R481 ◽

Cited By ~ 25

Author(s):

Chris J. McNeil ◽

Matti D. Allen ◽

Eric Olympico ◽

J. Kevin Shoemaker ◽

Charles L. Rice

Keyword(s):

Blood Flow ◽

Near Infrared ◽

Isometric Exercise ◽

Oxygenation Index ◽

Progressive Increase ◽

Muscle Oxygenation ◽

Isometric Contractions ◽

Anterior Tibial Artery ◽

Tibial Artery ◽

Anterior Tibial

A reduction of blood flow to active muscle will precipitate fatigue, and sustained isometric contractions produce intramuscular and compartmental pressures that can limit flow. The present study explored how blood flow and muscle oxygenation respond to isometric contractions at low, moderate, and maximal intensities. Over two visits, 10 males (26 ± 2 yr; means ± SD) performed 1-min dorsiflexion contractions at 30, 60, and 100% of maximal voluntary contraction (MVC) torque. Doppler ultrasound of the anterior tibial artery was used to record arterial diameter and mean blood velocity and to calculate absolute blood flow. The tissue oxygenation index (TOI) of tibialis anterior was acquired with near-infrared spectroscopy (NIRS). There was a progressive increase in blood flow at 30% MVC (peak of 289 ± 139% resting value), no change from rest until an increase in the final 10 s of exercise at 60% MVC (peak of 197 ± 102% rest), and an initial decrease (59 ± 30% resting value) followed by a progressive increase at 100% MVC (peak of 355 ± 133% rest). Blood flow was greater at 30 and 100% than 60% MVC during the last 30 s of exercise. TOI was ∼63% at rest and, within 30 s of exercise, reached steady-state values of ∼42%, ∼22%, and ∼22% for 30, 60, and 100% MVC, respectively. Even maximal contraction of the dorsiflexors is unable to cause more than a transient decrease of flow in the anterior tibial artery. Unlike dynamic or intermittent isometric exercise, our results indicate blood flow is not linearly graded with intensity or directly coupled with oxygenation during sustained isometric contractions.

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The Effect of Muscle Exercise on Perforators Flow: A Prospective Cohort Study

Medicina ◽

10.3390/medicina56070338 ◽

2020 ◽

Vol 56 (7) ◽

pp. 338

Author(s):

Francesco Amendola ◽

Luca Vaienti ◽

Giuseppe Cottone ◽

Giovanna Zaccaria ◽

Zvi Steinberger ◽

...

Keyword(s):

Blood Flow ◽

Muscle Blood Flow ◽

Arterial Blood Flow ◽

Anterior Tibial Artery ◽

Healthy Population ◽

Tibial Artery ◽

Arterial Blood ◽

Anterior Tibial ◽

Basal Flow ◽

Flow Velocities

Background and objectives: The metabolic response after exercise causes a significant increase in the muscle blood flow. While these effects are demonstrated for intra-muscular vessels, there is no evidence about the inter-muscular vessels, such as the septocutaneous perforators supplying the skin after they branch out from the deep source artery. The aim of our prospective study was to quantify the changes in the anterior tibial artery perforators arterial blood flow after mild isotonic exercise in a young and healthy population. Material and Methods: We performed a prospective analysis of 34 patients who were admitted to the Plastic Surgery Department from December 2019 to April 2020. Flow velocities of two previously identified anterior tibial artery perforators were recorded both before and after 10 complete flexion-extensions of the foot. The time to revert to basal flow was measured. We further classified the overmentioned patients based on their level of physical activity. Results: We registered a significant increase in systolic, diastolic and mean blood flow velocities both in proximal and distal anterior tibial artery perforators after exercise. Fitter patients exhibited a higher increase in proximal leg perforators than those who did less than three aerobic workouts a week. The time to return to basal flow ranged from 60 to 90 s. Conclusions: This was the first study to describe the effect of muscular activity on perforators blood flow. Even mild exercise significantly increases the perforator flow. Waiting at least two minutes at rest before performing the Doppler study, thus avoiding involved muscle activation, can notably improve the reliability of the pre-operative planning.

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