caa a22 4500 46905431X CHVBK 20180323132839.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF00705092 doi (NATIONALLICENCE)springer-10.1007/BF00705092 Thermal responses of men and women during cold-water immersion: influence of exercise intensity [Elektronische Daten] [William McArdle, Michael Toner, John Magel, Robert Spinal, Kent Pandolf] Summary: The influence of exercise intensity on thermoregulation was studied in 8 men and 8 women volunteers during three levels of arm-leg exercise (level I: 700 ml oxygen (O2) · min−1; level II: 1250 ml O2 · min−1; level III: 1700 ml O2 · min−1 for 1 h in water at 20 and 28°C (T w). For the men inT w 28°C the rectal temperature (T re) fell 0.79°C (P<0.05) during immersion in both rest and level-I exercise. With level-II exercise a drop inT re of 0.54° C (P < 0.05) was noted, while at level-III exerciseT re did not change from the pre-immersion value. AtT w of 20°C,T re fell throughout immersion with no significant difference in finalT re observed between rest and any exercise level. For the women at rest atT w 28°C,T re fell 0.80°C (P<0.05) below the pre-immersion value. With the two more intense levels of exercise,T re did not decrease during immersion. InT w 20°C, the women maintained higherT re (P<0.05) during level-II and level-III exercise compared to rest and exercise at level I. TheT re responses were related to changes in tissue insulation (I t) between rest and exercise with the largest reductions inI t noted between rest and level-I exercise acrossT w and gender. For men and women of similar percentage body fat, decreases inT re were greater for the women at rest and level-I exercise inT w 20°C (P< 0.05). With more intense exercise, the women maintained a higherT re than the men, especially in the colder water. These findings indicate that exercise is not always effective in offsetting the decrease inI t and facilitated heat loss in cool or cold water compared to rest. The factors of exercise intensity,T W, body fat, and gender influence the thermoregulatory responses. Springer-Verlag, 1992 Thermoregulation nationallicence Cold nationallicence Rest nationallicence Gender nationallicence Exercise nationallicence McArdle William Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut Toner Michael Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut Magel John Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut Spinal Robert Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut Pandolf Kent U.S. Army Research Institute of Environmental Medicine, 01760, Natick, MA, USA aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/3(1992-05-01), 265-270 0301-5548 65:3<265 1992 65 421 https://doi.org/10.1007/BF00705092 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00705092 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McArdle William Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut NATIONALLICENCE 700 1- Toner Michael Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut NATIONALLICENCE 700 1- Magel John Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut NATIONALLICENCE 700 1- Spinal Robert Laboratory of Applied Physiology, Department of Health and Physical Education, Queens College of the City University of New York, 11367, Flushing, NY, USA aut NATIONALLICENCE 700 1- Pandolf Kent U.S. Army Research Institute of Environmental Medicine, 01760, Natick, MA, USA aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/3(1992-05-01), 265-270 0301-5548 65:3<265 1992 65 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer