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Full-Text Articles in Social and Behavioral Sciences
Thermal Sweating Following Spinal Cord Injury, Bradley Wilsmore, J D. Cotter, Andrea Macdonald, A. Zeyl, Guy M. Bashford, Nigel Taylor
Thermal Sweating Following Spinal Cord Injury, Bradley Wilsmore, J D. Cotter, Andrea Macdonald, A. Zeyl, Guy M. Bashford, Nigel Taylor
Faculty of Science, Medicine and Health - Papers: part A
A complete spinal cord injury prevents neural connections between distal sites and higher neural structures. While it has previously been demonstrated that an isolated spinal cord can elicit non-thermal sweating independently of the hypothalamus [1-3], the ability of the spinal cord to control sweating in response to thermal stimuli, without hypothalamic influence, is less clear. The majority of early literature indicates that thermal sweating is absent below a complete spinal cord injury (SCI) [4-7], yet several studies suggest otherwise [8-11]. However, invasive measures have failed to observe altered sympathetic activity when thermally stimulating insensate regions [12], which is inconsistent with …
Sweating In Extreme Environments: Heat Loss, Heat Adaptation, Body-Fluid Distribution And Thermal Strain, Nigel Taylor
Sweating In Extreme Environments: Heat Loss, Heat Adaptation, Body-Fluid Distribution And Thermal Strain, Nigel Taylor
Faculty of Science, Medicine and Health - Papers: part A
Evaporation is an extremely powerful cooling process. When totally evaporated from the skin surface, sweat can remove body heat at a rate of 2.43 kJ«g"\ Humans therefore control sweat secretion to maintain thermal homeostasis. Since humans are capable of extended sweat rates approximating 30 g'min"1, it is possible to remove heat at rates -73 kJ-min"1. Assuming a 20% efficiency, such heat loss will support a normothermic total energy use of 1520W. This equates with an external work rate of 304W, eliciting an oxygen consumption >3.5 /«min"1. However, while man has a great capacity to both work and dissipate metabolically-derived heat, …