Thermal comfort and clothing insulation of resting tent occupants at high altitude
| Autor: | K. Cena, Nicole Davey, Tamara Erlandson |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Adult
Male Meteorology Cold climate Physical Therapy Sports Therapy and Rehabilitation Human Factors and Ergonomics Thermal sensation Statistics Nonparametric Altitude Animal science Protective Clothing Humans Thermosensing Safety Risk Reliability and Quality Engineering (miscellaneous) Bedding and Linens Thermal comfort Middle Aged Effects of high altitude on humans Cold Climate Mountaineering Air temperature Environmental science Female Clothing insulation Ergonomics human activities |
| Zdroj: | Applied Ergonomics. 34:543-550 |
| ISSN: | 0003-6870 |
| Popis: | Thirty-nine males and 18 females, in six groups, participated in six high altitude treks (each lasting 3–4 weeks and climbing up to 5500 m) in the Himalaya and Karakoram. Inverse relationships between mean overnight total insulation (sleeping bag plus clothing) and air temperature in tents were recorded for all treks. Average overnight thermal sensations varied little with air temperature as the subjects modified their clothing insulation to maintain thermal sensations warmer than ‘neutral’ for all treks. For combined treks, subjects adjusted their mean overnight total insulation up to 7 clo for thermal sensations of between 0 (‘neutral’) and +1 (‘slightly warm’) on average, measured on the standard seven-point thermal sensation scale developed for everyday low-altitude conditions. Very few subjects (3% of all daily responses, on average) reported ‘cool’ or ‘cold’ sensations. General tent discomfort increased with altitude suggesting that subjects interpreted tent comfort predominantly in terms of thermal outdoor conditions. |
| Databáze: | OpenAIRE |
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