Effects of rhythmic muscle compression on arterial blood pressure at rest and during dynamic exercise in humans

2001 ◽  
Vol 173 (3) ◽  
pp. 287-295 ◽  
Author(s):  
T. Nishiyasu ◽  
R. Sone ◽  
N. Tan ◽  
T. Maekawa ◽  
N. Kondo
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Dynamic Exercise ◽  
Arterial Blood ◽  
Exercise In Humans

Increases in intramuscular pressure raise arterial blood pressure during dynamic exercise

2001 ◽  
Vol 91 (5) ◽  
pp. 2351-2358 ◽  
Author(s):  
K. M. Gallagher ◽  
P. J. Fadel ◽  
S. A. Smith ◽  
K. H. Norton ◽  
R. G. Querry ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Arterial Blood Pressure ◽  
Dynamic Exercise ◽  
Positive Pressure ◽  
Intramuscular Pressure ◽  
Arterial Blood ◽  
Exercise In Humans ◽  
Cuff Occlusion

This investigation was designed to determine the role of intramuscular pressure-sensitive mechanoreceptors and chemically sensitive metaboreceptors in affecting the blood pressure response to dynamic exercise in humans. Sixteen subjects performed incremental (20 W/min) cycle exercise to fatigue under four conditions: control, exercise with thigh cuff occlusion of 90 Torr (Cuff occlusion), exercise with lower body positive pressure (LBPP) of 45 Torr, and a combination of thigh cuff occlusion and LBPP (combination). Indexes of central command (heart rate, oxygen uptake, ratings of perceived exertion, and electromyographic activity), cardiac output, stroke volume, and total peripheral resistance were not significantly different between the four conditions. Mechanical stimulation during LBPP and combination conditions resulted in significant elevations in intramuscular pressure and mean arterial pressure from control at rest and throughout the incremental exercise protocol ( P < 0.05). Conversely, there existed no significant changes in mean arterial pressure when the metaboreflex was stimulated by cuff occlusion. These findings suggest that under normal conditions the mechanoreflex is tonically active and is the primary mediator of exercise pressor reflex-induced alterations in arterial blood pressure during submaximal dynamic exercise in humans.

scholarly journals Cardiac and vasomotor components of the carotid baroreflex control of arterial blood pressure during isometric exercise in humans

2006 ◽  
Vol 572 (3) ◽  
pp. 869-880 ◽  
Author(s):  
James P. Fisher ◽  
Shigehiko Ogoh ◽  
Ellen A. Dawson ◽  
Paul J. Fadel ◽  
Niels H. Secher ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Isometric Exercise ◽  
Baroreflex Control ◽  
Arterial Blood ◽  
Carotid Baroreflex ◽  
Exercise In Humans

287 THE ACUTE EFFECT OF DYNAMIC EXERCISE OH ARTERIAL BLOOD PRESSURE

1990 ◽  
Vol 22 (2) ◽  
pp. S48 ◽  
Author(s):  
L. S. Pescatello ◽  
A. Falkenham ◽  
C. N. Leach ◽  
H. H. Scherzer
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Acute Effect ◽  
Dynamic Exercise ◽  
Arterial Blood

scholarly journals Cardiovascular Reflexes Activity and Their Interaction during Exercise

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Antonio Crisafulli ◽  
Elisabetta Marongiu ◽  
Shigehiko Ogoh
Keyword(s):  
Blood Pressure ◽  
Cardiac Output ◽  
Arterial Blood Pressure ◽  
Oxygen Supply ◽  
Dynamic Exercise ◽  
Cardiovascular Reflexes ◽  
Arterial Blood ◽  
Functional Sympatholysis ◽  
Exercise Induced ◽  
By Products

Cardiac output and arterial blood pressure increase during dynamic exercise notwithstanding the exercise-induced vasodilation due to functional sympatholysis. These cardiovascular adjustments are regulated in part by neural reflexes which operate to guarantee adequate oxygen supply and by-products washout of the exercising muscles. Moreover, they maintain adequate perfusion of the vital organs and prevent excessive increments in blood pressure. In this review, we briefly summarize neural reflexes operating during dynamic exercise with particular emphasis on their interaction.

scholarly journals Cardiac and vasomotor components of the carotid baroreflex control of arterial blood pressure during isometric exercise in humans

2006 ◽  
Vol 20 (4) ◽  
Author(s):  
James P Fisher ◽  
Shigehiko Ogoh ◽  
Ellen A Dawson ◽  
Paul J Fadel ◽  
Niels H Secher ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Isometric Exercise ◽  
Baroreflex Control ◽  
Arterial Blood ◽  
Carotid Baroreflex ◽  
Exercise In Humans

Effect of hypovolemia on forearm vascular resistance control during exercise in the heat

1991 ◽  
Vol 71 (4) ◽  
pp. 1382-1386 ◽  
Author(s):  
T. S. Nishiyasu ◽  
X. G. Shi ◽  
G. W. Mack ◽  
E. R. Nadel
Keyword(s):  
Blood Pressure ◽  
Blood Flow ◽  
Arterial Blood Pressure ◽  
Vascular Resistance ◽  
Forearm Blood Flow ◽  
Cycle Ergometer ◽  
Dynamic Exercise ◽  
Arterial Blood ◽  
Ergometer Exercise ◽  
Forearm Vascular Resistance

To determine the influence of hypovolemia on the control of forearm vascular resistance (FVR) during dynamic exercise, we studied five physically active men during 60 min of supine cycle ergometer exercise bouts at 35 degrees C in control (normovolemic) and hypovolemic conditions. Hypovolemia was achieved by 3 days of diuretic administration and resulted in an average decrease in plasma volume of 15.9%. Relative to normovolemia, hypovolemia caused an attenuation of the progressive rise in forearm blood flow (P less than 0.05) and an increase in heart rate (P less than 0.05) during exercise. Because mean arterial blood pressure during hypovolemic exercise was well maintained, the attenuation of forearm blood flow was due entirely to a relative increase in FVR. At the onset of dynamic exercise, FVR was increased significantly in control and hypovolemic conditions by 13.2 and 27.1 units, respectively. The increase in FVR was significantly different between control and hypovolemic conditions as well. We attributed the increased vasoconstrictor bias during hypovolemia to cardiopulmonary baroreceptor unloading and/or an increased sensitivity to cardiopulmonary baroreceptor unloading. We concluded that reduced blood flow to the periphery during exercise in the hypovolemic condition was caused entirely by an increase in vascular resistance, thereby preserving arterial blood pressure and adequate perfusion to the organs requiring increased flow.

scholarly journals Short-term effect of dynamic exercise on arterial blood pressure.

Circulation ◽  
1991 ◽  
Vol 83 (5) ◽  
pp. 1557-1561 ◽  
Author(s):  
L S Pescatello ◽  
A E Fargo ◽  
C N Leach ◽  
H H Scherzer
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Dynamic Exercise ◽  
Term Effect ◽  
Short Term ◽  
Short Term Effect ◽  
Arterial Blood
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