TY - JOUR PY - 1991// TI - Effects of water temperature on performance: a practical evaluation of a neutral buoyancy facility JO - Aviation, space, and environmental medicine A1 - Bolstad, G. A1 - Myrseth, E. A1 - Holand, B. A1 - PÄsche, A. SP - 241 EP - 245 VL - 62 IS - 3 N2 - Manual and cognitive performance of two female and four male divers was evaluated in "cold" and "warm" water in a Neutral Buoyancy Facility (NBF). A test battery of six manual and cognitive tests was applied in a fixed sequence in three separate, 3-h dives: Dive 1) Water temp.: 18-19 degrees C, wet suit 3-5 mm thick; Dive 2) Water temp.: 32-33 degrees C bathing suit and T-shirt; and Dive 3) Water temp.: 18-19 degrees C, tailor made wet suit 6.5 mm thick. No significant differences in performance between the three conditions were recorded. Mean rectal temperatures decreased by 1 degree C in all dive conditions, except in females in Dive 2. Ventilation was significantly higher in Dive 1 than in Dives 2 and 3. Thermal discomfort was reported only after 2 h in Dive 1. We suggest that support divers may work safely, comfortably and effectively for at least 2 h in water of 18-19 degrees C, if dressed in thermal protective wet suits.

Language: en

LA - en SN - 0095-6562 UR - http://dx.doi.org/ ID - ref1 ER -