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2007, Piran, Slovenia

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Clothing<br />

studies using an ice vest in cross-country racing (Hunter et al. 2006), and frozen gel<br />

by Pimental et al. (1992). Mean whole body thermal sensation with the vest was<br />

somewhat less during the heat exposure. However, there has also been a recent study<br />

showing that a cooling vest incorporating a water-based PCM (mainly sodium<br />

sulphate additives, Tm=28°C) had no significant cooling effects on core and skin<br />

temperatures during and after fire fighting (Carter et al. <strong>2007</strong>), which was carried out<br />

in a lower temperature environment (less heat stress).<br />

CONCLUSIONS<br />

The cooling vest has an effect in reducing heat strain as evidenced by both thermal<br />

manikin and subject tested in very hot conditions.<br />

ACKNOWLEDGEMENT<br />

The authors are grateful to the support of TST Sweden AB and the subjects.<br />

REFERENCES<br />

Carter, J.M., Rayson, M.P., Wilkinson, D.M., Richmond, V., Blacker, S., <strong>2007</strong>.<br />

Strategies to combat heat strain during and after firefighting. J. Therm. Biol. 32,<br />

109-116.<br />

Holmér, I., Kuklane, K., Gao, C., 2006. Test of firefighter’s turnout gear in hot and<br />

humid air exposure. Int. J. Occup. Safety Ergonomics 12, 297-305.<br />

Hunter, I., Hopkins, J.T., Casa, D.J., 2006. Warming up with an ice vest: Core body<br />

temperature before and after cross-country racing. J. Athl. Train. 41, 371-374.<br />

Jetté, F.X., Dionne, J.P., Rose, J., Makris, A.2004. Effect of thermal manikin surface<br />

temperature on the performance of personal cooling systems. Eur. J. Appl.<br />

Physiol. 92, 669-672.<br />

Myhre, L.G., Muir, I., 2005. The effect of 30-minutes of upper body cooling (ice vest)<br />

on skin and core temperatures during rest in a comfortable environment (Ta=22<br />

ºC). Proceedings of the 11th International Conference on Environmental<br />

Ergonomics, Lund University, Lund, Sweden, pp.52-54.<br />

Pimental, N.A., Avellini, B.A., Heaney, J.H., 1992. Ability of a passive microclimate<br />

cooling vest to reduce thermal strain and increase tolerance to work in the heat.<br />

Proceedings of the fifth International Conference on Environmental Ergonomics,<br />

TNO, Maastricht, The Netherlands, pp. 226-227.<br />

Shim, H., McCullough, E.A., Jones, B.W., 2001. Using phase change materials in<br />

clothing. Text. Res. J. 71, 495-502.<br />

Smolander, J., Kuklane, K., Gavhed, D., Nilsson, H., Holmér, I., 2004. Effectiveness<br />

of a light-weight ice-vest for cooling while wearing fire fighter’s protective<br />

clothing in the heat. Int. J. Occup. Safety Ergonomics. 10, 111-117.<br />

Yoshimi, N., Tanabe, S., Takaki, R., Hayama, H., Komatsu, M., 1998. A cooling vest:<br />

is it useful in the high temperature telecommunication machine room?<br />

Proceedings of the 2nd International Conference on Human-Environment System,<br />

Yokohama, Japan, pp. 194-197.<br />

149

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