“…Also, heart rate was significantly lower during the experimental period with DC clothing (Figure 4) and the loss of In general, garments worn for sports or work should allow rapid transmission of metabolic heat and sweat from the body to the surroundings, so reducing internal heat stress and allowing exercise to be performed effectively (Hayashi & Tokura, 1999, 2000Park et al, 2006). The properties of clothing materials relevant to heat and moisture transfer are thermal insulation, moisture absorption and water vapour permeability (Lotens, 1993;Lotens & Havenith, 1995;Park et al, 2005). In the present study, the fabric dyed with persimmon extract showed higher moisture regain, water vapour transmission and air permeability, and slightly lower thermal resistance than did undyed fabric, a result similar to that found previously (Park, 1995;Yi et al, 2007).…”