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Autonomic Neural Control of Dynamic Cerebral Autoregulation in Humans
- R. Zhang, J. Zuckerman, Kenichi Iwasaki, T. Wilson, C. Crandall, B. Levine
- 1 October 2002
Background—The purpose of the present study was to determine the role of autonomic neural control of dynamic cerebral autoregulation in humans. Methods and Results—We measured arterial pressure and… Expand
The cardiovascular challenge of exercising in the heat
Exercise in the heat can pose a severe challenge to human cardiovascular control, and thus the provision of oxygen to exercising muscles and vital organs, because of enhanced thermoregulatory demand… Expand
Nitric oxide and cutaneous active vasodilation during heat stress in humans.
- D. Kellogg, C. Crandall, Y. Liu, N. Charkoudian, J. M. Johnson
- Medicine, Chemistry
- Journal of applied physiology
- 1 September 1998
Whether nitric oxide (NO) is involved in cutaneous active vasodilation during hyperthermia in humans is unclear. We tested for a role of NO in this process during heat stress (water-perfused suits)… Expand
Cutaneous active vasodilation in humans is mediated by cholinergic nerve cotransmission.
- D. Kellogg, P. Pergola, +4 authors J. M. Johnson
- Biology, Medicine
- Circulation research
- 1 December 1995
During heat stress, increases in blood flow in nonglabrous skin in humans are mediated through active vasodilation by an unknown neurotransmitter mechanism. To investigate this mechanism, a… Expand
Baroreflex modulation of muscle sympathetic nerve activity during posthandgrip muscle ischemia in humans.
- J. Cui, T. Wilson, M. Shibasaki, N. Hodges, C. Crandall
- Journal of applied physiology
- 1 October 2001
To identify whether muscle metaboreceptor stimulation alters baroreflex control of muscle sympathetic nerve activity (MSNA), MSNA, beat-by-beat arterial blood pressure (Finapres), and… Expand
Effects of passive heating on central blood volume and ventricular dimensions in humans
Mixed findings regarding the effects of whole‐body heat stress on central blood volume have been reported. This study evaluated the hypothesis that heat stress reduces central blood volume and alters… Expand
Neural control and mechanisms of eccrine sweating during heat stress and exercise.
In humans, evaporative heat loss from eccrine sweat glands is critical for thermoregulation during exercise and/or exposure to hot environmental conditions, particularly when environmental… Expand
Muscle metaboreceptor modulation of cutaneous active vasodilation.
- C. Crandall, D. Stephens, J. M. Johnson
- Medicine and science in sports and exercise
- 1 April 1998
PURPOSE Isometric handgrip exercise in hyperthermia has been shown to reduce cutaneous vascular conductance (CVC) by inhibiting the cutaneous active vasodilator system. METHODS To identify whether… Expand
Heat stress enhances arterial baroreflex control of muscle sympathetic nerve activity via increased sensitivity of burst gating, not burst area, in humans
- D. Keller, J. Cui, S. Davis, D. Low, C. Crandall
- Chemistry, Medicine
- The Journal of physiology
- 1 June 2006
The relationship between muscle sympathetic nerve activity (MSNA) and diastolic blood pressure has been used to describe two sites for arterial baroreflex control of MSNA. By determining both the… Expand
Cardiovascular function in the heat‐stressed human
Heat stress, whether passive (i.e. exposure to elevated environmental temperatures) or via exercise, results in pronounced cardiovascular adjustments that are necessary for adequate temperature… Expand