scholarly journals Four Weeks of Hypoxia Training Improves Cutaneous Microcirculation in Trained Rowers

2019 ◽  
pp. 757-766 ◽  
Author(s):  
Z. MENG ◽  
B. GAO ◽  
H. GAO ◽  
P. GE ◽  
T. LI ◽  
...  
Keyword(s):  
Blood Flow ◽  
Hypoxia Inducible Factor ◽  
Endurance Performance ◽  
Adaptation To Hypoxia ◽  
Cutaneous Blood Flow ◽  
Transcutaneous Oxygen ◽  
Cutaneous Microcirculation ◽  
Transcutaneous Oxygen Pressure ◽  
Endothelial Growth Factor ◽  
Cutaneous Blood

Hypoxia training can improve endurance performance. However, the specific benefits mechanism of hypoxia training is controversial, and there are just a few studies on the peripheral adaptation to hypoxia training. The main objective of this study was to observe the effects of hypoxia training on cutaneous blood flow (CBF), hypoxia-inducible factor (HIF), nitric oxide (NO), and vascular endothelial growth factor (VEGF). Twenty rowers were divided into two groups for four weeks of training, either hypoxia training (Living High, Exercise High and Training Low, HHL) or normoxia training (NOM). We tested cutaneous microcirculation by laser Doppler flowmeter and blood serum parameters by ELISA. HHL group improved the VO2peak and power at blood lactic acid of 4 mmol/l (P4) significantly. The CBF and the concentration of moving blood cells (CMBC) in the forearm of individuals in the HHL group increased significantly at the first week. The HIF level of the individuals in the HHL group increased at the fourth week. The NO of HHL group increased significantly at the fourth week. In collusion, four weeks of HHL training resulted in increased forearm cutaneous blood flow and transcutaneous oxygen pressure. HHL increases rowers’ NO and VEGF, which may be the mechanism of increased blood flow. The increased of CBF seems to be related with improving performance.

Gravity changes in transcutaneous oxygen pressure and cutaneous blood flow

2018 ◽  
Vol 59 ◽  
pp. 207-209
Author(s):  
Pierre Abraham ◽  
Jeanne Hersant ◽  
Yannick Bigou ◽  
Myriam Ammi ◽  
Samir Henni
Keyword(s):  
Blood Flow ◽  
Oxygen Pressure ◽  
Cutaneous Blood Flow ◽  
Transcutaneous Oxygen ◽  
Gravity Changes ◽  
Transcutaneous Oxygen Pressure ◽  
Cutaneous Blood

The Vasostimulant Effect of the Electric Pulse Stimulator on the Cutaneous Blood Flow.

1997 ◽  
Vol 59 (2) ◽  
pp. 255-256
Author(s):  
Yuka NAKAMURA ◽  
Shinichi WATANABE ◽  
Hisashi TAKAHASHI ◽  
Atsuhiko HASEGAWA
Keyword(s):  
Blood Flow ◽  
Electric Pulse ◽  
Cutaneous Blood Flow ◽  
Cutaneous Blood

Relation of local skin temperature and local sweating to cutaneous blood flow

1963 ◽  
Vol 18 (4) ◽  
pp. 781-785 ◽  
Author(s):  
Leo C. Senay ◽  
Leon D. Prokop ◽  
Leslie Cronau ◽  
Alrick B. Hertzman
Keyword(s):  
Blood Flow ◽  
Skin Temperature ◽  
Sweat Gland ◽  
Cutaneous Blood Flow ◽  
Local Skin ◽  
Cutaneous Vasodilatation ◽  
Local Skin Temperature ◽  
Relationship Of ◽  
The Relationship ◽  
Cutaneous Blood

The relationship of local skin temperature and the onset of sweating to the local cutaneous blood flow was studied in the forearm and calf. The purpose of the investigation was to appraise the possible relation of sweat gland activity to the cutaneous vasodilatation which has been attributed to bradykinin or to intracranial temperatures. The onset of sweating was not marked by any apparently related increases in the rate of cutaneous blood flow. On the contrary, the onset of sweating was followed often by a stabilization or even a decrease in the level of cutaneous blood flow. The relations of the latter to the local skin temperature were complex, particularly in the forearm. There appeared to be additional unidentified influences, possibly vasomotor, operating on the skin vessels during transitional phases in the relation of skin temperature to blood flow. Submitted on October 15, 1962

A New Model: Bipediculated Dorsal Flap of Hairless Rat for Cutaneous Blood Flow Evaluation

1989 ◽  
Vol 2 (4) ◽  
pp. 198-203 ◽  
Author(s):  
F. Auclair ◽  
M. Besnard ◽  
C. Dupont ◽  
J. Wepierre
Keyword(s):  
Blood Flow ◽  
Cutaneous Blood Flow ◽  
New Model ◽  
Cutaneous Blood ◽  
Blood Flow Evaluation

Cardiovascular and sweating responses to water ingestion during dehydration

1965 ◽  
Vol 20 (5) ◽  
pp. 975-979 ◽  
Author(s):  
Leo C. Senay ◽  
Margaret L. Christensen
Keyword(s):  
Blood Flow ◽  
The Body ◽  
Evaporative Heat Loss ◽  
Cutaneous Blood Flow ◽  
Temperature Changes ◽  
Fluid Ingestion ◽  
Water Ingestion ◽  
Heat Chamber ◽  
Saline Ingestion ◽  
Cutaneous Blood

The experiments reported are concerned with cardiovascular and sudomotor events preceding, accompanying, and following ingestion of water by five dehydrating subjects 8.75 hr after entrance into a heat chamber (43.3 C DB, 29 C WB). Certain skin areas such as the cheek showed increases in evaporative heat loss before subjects came in contact with water. This reflex could be initiated by saline ingestion but the degree of skin and oral temperature changes appeared to depend on tonicity of fluid ingested. The gustatory reflex was not thought to be the initiating agent for sudomotor responses. Increases in cutaneous blood flow appeared to begin almost as promptly as sweating responses but took considerably longer to develop. Ingestion of saline, though initiating a sweating response, did not alter heart rate, blood pressure, or cutaneous blood flow. It is suggested that fluid ingestion, regardless of tonicity, triggers reflex sweating over the body surface. Intensity and duration of this sudomotor response, as well as initiation of cardiovascular changes, apparently depend on tonicity of ingested fluid. cutaneous blood flow; skin temperature; regional sweating Submitted on November 27, 1964

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