Lower body dynamic exercise reduces wave reflection in healthy young adults

2021 ◽  
Author(s):  
Joseph M. Stock ◽  
Julio A. Chirinos ◽  
David G. Edwards
Keyword(s):  
Young Adults ◽  
Wave Reflection ◽  
Dynamic Exercise ◽  
Lower Body ◽  
Body Dynamic

A Comparison of Additional Heart Rates During Active Psychological Challenge Calculated From Upper Body and Lower Body Dynamic Exercise

1988 ◽  
Vol 25 (2) ◽  
pp. 209-216 ◽  
Author(s):  
J. Rick Turner ◽  
Douglas Carroll ◽  
Jane Hanson ◽  
Jane Sims
Keyword(s):  
Dynamic Exercise ◽  
Upper Body ◽  
Lower Body ◽  
Heart Rates ◽  
Psychological Challenge ◽  
Body Dynamic

scholarly journals Central aortic hemodynamics following acute lower and upper-body exercise in a cold environment among patients with coronary artery disease

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Heidi E. Hintsala ◽  
Rasmus I. P. Valtonen ◽  
Antti Kiviniemi ◽  
Craig Crandall ◽  
Juha Perkiömäki ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Dynamic Exercise ◽  
Upper Body ◽  
Cold Environment ◽  
Lower Body ◽  
Static Exercise ◽  
Upper Body Exercise ◽  
Post Exercise ◽  
Artery Disease

AbstractExercise is beneficial to cardiovascular health, evidenced by reduced post-exercise central aortic blood pressure (BP) and wave reflection. We assessed if post-exercise central hemodynamics are modified due to an altered thermal state related to exercise in the cold in patients with coronary artery disease (CAD). CAD patients (n = 11) performed moderate-intensity lower-body exercise (walking at 65–70% of HRmax) and rested in neutral (+ 22 °C) and cold (− 15 °C) conditions. In another protocol, CAD patients (n = 15) performed static (five 1.5 min work cycles, 10–30% of maximal voluntary contraction) and dynamic (three 5 min workloads, 56–80% of HRmax) upper-body exercise at the same temperatures. Both datasets consisted of four 30-min exposures administered in random order. Central aortic BP and augmentation index (AI) were noninvasively assessed via pulse wave analyses prior to and 25 min after these interventions. Lower-body dynamic exercise decreased post-exercise central systolic BP (6–10 mmHg, p < 0.001) and AI (1–6%, p < 0.001) both after cold and neutral and conditions. Dynamic upper-body exercise lowered central systolic BP (2–4 mmHg, p < 0.001) after exposure to both temperatures. In contrast, static upper-body exercise increased central systolic BP after exposure to cold (7 ± 6 mmHg, p < 0.001). Acute dynamic lower and upper-body exercise mainly lowers post-exercise central BP in CAD patients irrespective of the environmental temperature. In contrast, central systolic BP was elevated after static exercise in cold. CAD patients likely benefit from year-round dynamic exercise, but hemodynamic responses following static exercise in a cold environment should be examined further.Clinical trials.gov: NCT02855905 04/08/2016.

The effect of lower body weight support on arterial wave reflection in healthy adults

2014 ◽  
Vol 8 (6) ◽  
pp. 388-393 ◽  
Author(s):  
Atif Afzal ◽  
Daniel Fung ◽  
Sean Galligan ◽  
Ellen M. Godwin ◽  
John G. Kral ◽  
...  
Keyword(s):  
Body Weight ◽  
Wave Reflection ◽  
Healthy Adults ◽  
Body Weight Support ◽  
Lower Body ◽  
Weight Support ◽  
Lower Body Weight ◽  
Arterial Wave Reflection

Propagation of pressure pulse in kangaroo arterial system

1985 ◽  
Vol 249 (3) ◽  
pp. R335-R340 ◽  
Author(s):  
A. P. Avolio ◽  
W. W. Nichols ◽  
M. F. O'Rourke
Keyword(s):  
Pressure Pulse ◽  
Wave Reflection ◽  
Pulse Contour ◽  
Ascending Aorta ◽  
Arterial System ◽  
Upper Body ◽  
Peripheral Arteries ◽  
Lower Body ◽  
Close Proximity ◽  
Uniform Tube

The pressure pulse contour in the ascending aorta of kangaroos is markedly different from that seen in other species, but the changes undergone by the pulse propagating along the aorta are quite similar. Alteration of wave contour and progressive amplification of the pulse in the distal aorta and peripheral arteries of other mammals have been attributed to elastic nonuniformity of the aorta and to peripheral wave reflection. In kangaroos the aorta approximates a uniform tube with essentially constant viscoelastic properties, whereas wave reflection from the lower body appears to be unusually intense and to emanate from a single functionally discrete reflecting site; this appears to be the result of arterial terminations in the muscular lower body. Intense wave reflection from the lower body is the dominant mechanism responsible for changes in the pressure pulse of kangaroos between the ascending aorta and peripheral arteries. Contour of the pulse in the ascending aorta is attributable to this and to close proximity of reflecting sites in the upper body.

Forearm vascular responses to baroreceptor unloading at the onset of dynamic exercise

1993 ◽  
Vol 75 (2) ◽  
pp. 979-985 ◽  
Author(s):  
T. Nishiyasu ◽  
X. Shi ◽  
G. W. Mack ◽  
E. R. Nadel
Keyword(s):  
Lower Body Negative Pressure ◽  
Dynamic Exercise ◽  
Central Command ◽  
Lower Body ◽  
Physically Active ◽  
Vascular Responses ◽  
Vasoconstrictor Response ◽  
The Relationship ◽  
Forearm Vascular Resistance ◽  
Cardiac Stroke Volume

To determine the extent to which reflexes accompanying muscular exercise (associated with central command) interact with cardiopulmonary (CP) baroreceptor-mediated reflexes controlling forearm vascular resistance (FVR), we examined the forearm vasoconstrictor response at the onset of dynamic exercise, with and without CP baroreflex unloading, in 10 physically active men. CP baroreceptors were unloaded by application of lower body negative pressure (LBNP) at rest and during five 4-min bouts of supine exercise at 25 and 32 degrees C. Exercise intensities were 10 (essentially no load) and 100 W, and LBNP was applied at -10, -20, -30, and -40 mmHg during rest and at -20 and -40 mmHg during exercise. Resting FVR was 33.0 +/- 3.2 and 14.0 +/- 2.7 resistance units, and cardiac stroke volume (SV) was 117 +/- 7 and 126 +/- 9 ml/beat at 25 and 32 degrees C, respectively. We found a linear relationship between the increase in FVR and decrease in SV during LBNP; the slope of the relationship was significantly lower at 32 degrees C (FVR = 51.7–0.29SV) than at 25 degrees C (FVR = 123–0.79SV). At the onset of 100-W exercise without LBNP, FVR increased significantly to 50.2 +/- 9.0 and 21.2 +/- 3.2 units at 25 and 32 degrees C, respectively, whereas SV was unchanged. Application of -40-mmHg LBNP reduced SV significantly to 68 +/- 5 and 71 +/- 6 ml/beat and increased FVR significantly to 89.0 +/- 11.3 and 36.3 +/- 7.6 units at 25 and 32 degrees C, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals The effect of test modality on dynamic exercise biomarkers in children, adolescents, and young adults

2019 ◽  
Vol 7 (14) ◽  
Author(s):  
Ronen Bar‐Yoseph ◽  
Janos Porszasz ◽  
Shlomit Radom‐Aizik ◽  
Kim D. Lu ◽  
Annamarie Stehli ◽  
...  
Keyword(s):  
Young Adults ◽  
Dynamic Exercise ◽  
Adolescents And Young Adults

PO-08 EFFECTS OF ACUTE DIETARY NITRATE SUPPLEMENTATION ON AORTIC WAVE REFLECTION IN YOUNG ADULTS

2014 ◽  
Vol 8 (4) ◽  
pp. 169
Author(s):  
D. Treichler ◽  
K. Ueda ◽  
C. Ganger ◽  
A. Schneider ◽  
D.P. Casey
Keyword(s):  
Young Adults ◽  
Wave Reflection ◽  
Dietary Nitrate ◽  
Nitrate Supplementation

scholarly journals Dynamic and Static Handgrip Exercise Increase Wave Reflection in Healthy Young Adults

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Joseph M Stock ◽  
Nicholas V Chouramanis ◽  
Julio A Chirinos ◽  
David G Edwards
Keyword(s):  
Young Adults ◽  
Wave Reflection ◽  
Handgrip Exercise
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