Relationship between body heat content and finger temperature during cold exposure
Brajkovic D, Ducharme MB, Frim J
Journal of applied physiology (Bethesda, Md. : 1985) · 27 citas
Etiquetas de revisión
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2001-06-01 · J Appl Physiol (1985) · vol. 90 · número 6 · págs. 2445–2452
- Editorial
- American Physiological Society
- Citado
- 54 citas · más que el 70% de estudios similares · 0.7× el promedio de su campo
- Referencias
- 43 trabajos
- Acceso
- De pago
- Áreas de investigación
- Thermoregulation and physiological responses · Thermal Regulation in Medicine · Cardiovascular and exercise physiology
- Palabras clave
- body heat content, body heat storage, cold exposure, finger temperature, finger dexterity, clothing insulation
- MeSH
- fingers, humans, pulmonary gas exchange, body temperature, calorimetry, psychomotor performance, thermogenesis, algorithms, adult, male, cold temperature
3 autores
- Dragan Brajkovic
- Michel B. Ducharme
- John Frim
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of the present experiment was to examine the relationship between rate of body heat storage (S), change in body heat content (DeltaH(b)), extremity temperatures, and finger dexterity. S, DeltaH(b), finger skin temperature (T(fing)), toe skin temperature, finger dexterity, and rectal temperature were measured during active torso heating while the subjects sat in a chair and were exposed to -25 degrees C air. S and DeltaH(b) were measured using partitional calorimetry, rather than thermometry, which was used in the majority of previous studies. Eight men were exposed to four conditions in which the clothing covering the body or the level of torso heating was modified. After 3 h, T(fing) was 34.9 +/- 0.4, 31.2 +/- 1.2, 18.3 +/- 3.1, and 12.1 +/- 0.5 degrees C for the four conditions, whereas finger dexterity decreased by 0, 0, 26, and 39%, respectively. In contrast to some past studies, extremity comfort can be maintained, despite S that is slightly negative. This study also found a direct linear relationship between DeltaH(b) and T(fing) and toe skin temperature at a negative DeltaH(b). In addition, DeltaH(b) was a better indicator of the relative changes in extremity temperatures and finger dexterity over time than S.
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