Accès ouvert
2026
article
OpenAlex
Brooks A. Hibner, Natalia S. Lima, Sara R. Sherman, Robert W. Motl et autres
Abstract Multiple sclerosis (MS) may impair ventricular‐vascular coupling (VVC), a measure of the interaction between the cardiac and vascular systems. We evaluated if VVC differed between individuals with and without MS with similar age‐predicted fitness. Individuals with MS ( n = 20) …
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Accès ouvert
2025
article
OpenAlex
Natália S. Lima, Ronald E. Jackson, Brooks A. Hibner, Sara R. Sherman et autres
INTRODUCTION: Peripheral arterial stiffness measured with pulse wave velocity (PWV) is reduced 5-min after an acute bout of dynamic exercise. The mechanism for the reduction in peripheral arterial stiffness is unknown. We hypothesized that increased blood flow and compression of the vasculature …
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Accès ouvert
2025
article
OpenAlex
Natália S. Lima, Ronald E. Jackson, Sara R. Sherman, Brooks A. Hibner et autres
We manipulated baseline peripheral arterial stiffness via changes in local arterial pressure with different limb positions to test the hypothesis that the magnitude of decrease in arterial stiffness post exercise/compression would be less when baseline stiffness is higher with the arm below …
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Accès ouvert
2024
article
OpenAlex
Brooks A. Hibner, Natália S. Lima, Sara R. Sherman, Robert W. Motl et autres
Abstract Multiple sclerosis (MS) is a chronic neurological condition resulting in decreased aerobic capacity (peak VO2). The hemodynamic responses to peak exercise in MS are unknown. Further, it is unknown if the hemodynamic responses are due to disease or fitness. Therefore, the …
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Accès ouvert
2024
article
OpenAlex
Ronald E. Jackson, Natália S. Lima, Sara R. Sherman, Brooks A. Hibner et autres
Abstract The mechanism behind the acute reduction in peripheral arterial stiffness with reactive hyperemia is presumed to be flow-mediated; however, this has not been clearly demonstrated. We hypothesized that a larger reactive hyperemia magnitude would result in a greater reduction in peripheral …
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2024
article
OpenAlex
Ronald E. Jackson, Natália S. Lima, Sara R. Sherman, Brooks A. Hibner et autres
Reactive hyperemia can acutely reduce peripheral arterial stiffness. The reduction in peripheral arterial stiffness with reactive hyperemia has been suggested to be flow dependent. However, no previous studies have manipulated the magnitude of hyperemia. We manipulated blood flow by altering limb position …
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Accès ouvert
2024
article
OpenAlex
Natália S. Lima, Yi‐Ting Tzen, Philip S. Clifford
Abstract Skin blood flow is commonly determined by laser Doppler flowmetry (LDF). It has been suggested that pathophysiological conditions can be assessed by analysis of specific frequency domains of the LDF signals. We tested whether physiological stimuli that activate myogenic and neurogenic …
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Accès ouvert
2023
article
OpenAlex
Ronald E. Jackson, Natália S. Lima, Sara R. Sherman, Philip S. Clifford
The acute reduction in peripheral arterial stiffness during reactive hyperemia is assumed to be flow-mediated; however, the mechanism remains unproven. We hypothesized that restricting the blood flow increase during reactive hyperemia would abolish the reduction in peripheral arterial stiffness. Fourteen healthy young …
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2023
article
OpenAlex
Natália S. Lima, Ronald L. Jackson, Brooks A. Hibner, Sara R. Sherman et autres
Increased arterial stiffness is associated with cardiovascular risk. Central and peripheral arterial stiffness measured with pulse wave velocity (PWV) are reduced 5 min after a single bout of dynamic exercise. Peripheral arterial stiffness is also reduced after a single bout of passive …
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2023
conference-abstract
OpenAlex
Ronald L. Jackson, Natália S. Lima, Sara R. Sherman, Philip S. Clifford
Previous studies have shown that peripheral arterial stiffness is reduced acutely by exercise and mechanical compression. Our recent data show that reactive hyperemia also reduces peripheral arterial stiffness. We reasoned that the reduction in arterial stiffness to all these stimuli might be …
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Accès ouvert
2023
article
OpenAlex
Zahra Nourian, Kwangseok Hong, Min Li, Jorge A. Castorena‐Gonzalez et autres
Introduction: Vascular extracellular matrix (ECM) is dominated by elastic fibers (elastin with fibrillin-rich microfibrils) and collagens. Current understanding of ECM protein development largely comes from studies of conduit vessels (e.g., aorta) while resistance vessel data are sparse. With an emphasis on elastin, …
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2023
article
OpenAlex
Natália S. Lima, Ronald L. Jackson, Sara R. Sherman, Brooks A. Hibner et autres
Increased arterial stiffness is associated with cardiovascular risk and mortality. Central and peripheral arterial stiffness measured with pulse wave velocity (PWV) are known to be reduced 5 min after a single bout of dynamic exercise using a large muscle mass. The effect …
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(code pays fourni par la source)