Human body and testing
The realtionship between the human body and sportswear clothing cannot be considered in terms of simple classical heat transport functions, for instance dry heat transfer by conduction, convection and radiation and heat loss by evaporation or even ventilation. Although for measurement and calculation it is advantageous to separate these to achieve reproducible results, all of these mechanisms must be considered together.
In the laboratory, where measurements are made in the absence of the human body, the greatest problem is definitely the accurate simulation of the complex physical conditions which arise during the wearing of clothes. It is necessary to distinguish between between heat transfer under certain conditions influenced by the fabric only and those influenced by pattern and fit. The tests must be carried out under all possible conditions.
User trials and field testing are particularly important because
of the complex requirements of performance sportswear product.
For the testing of fibres, yarns and fabric for sportswear used in sportswear
the specific requirements must be known. They may be very different for
the different activities, e.g. compare skiwear with swimwear. |
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