Ergonomic mastectomy bra design: Effect on core body temperature and thermal comfort performance.
2020
Abstract The accumulation of sweat and heat between the skin and the prosthesis is one of the common causes of discomfort experienced by post-mastectomy women who wore silicone-type external breast prostheses. This study aimed 1) to investigate the effect of a newly designed heat-reduction mastectomy bra on the thermal responses and thermal comfort performance; and 2) to propose an evaluation protocol for post-mastectomy products. The heat-reduction bra and the conventional bra were made of the same textile materials but the cup of the bra under discussion had a polyurethane cup with a perforated structure along the breast root/inframammary fold. The inframammary fold is often aggravated by heat, sweat, maceration, chafe, and lack of air circulation. Nine healthy male participants were recruited to participate in the study since the women who had undergone double-mastectomy were sensitive about their scars. An ingestible telemetric pill sensor was used to collect the data of core body temperature. Participants performed a 70-min five-phase exercise protocol wearing the heat-reduction bra and the conventional bra together with a silicone prosthesis with ventilation holes on the bottom. Physiological responses (i.e., core body temperature, skin temperature, temperature between bra and prosthesis, skin humidity and humidity between bra and prosthesis) and subjective sensation responses were measured. The results were statistically significant and the conventional mastectomy bra showed a higher core body temperature than that of the heat-reduction mastectomy bra (37.3 ± 0.3 °C to 38.2 ± 0.5 °C vs. 37.2 ± 0.3 °C to 38.0 ± 0.3 °C) starting from the middle of the sitting phase to the running phase and post-exercise resting (F = 164.2, p
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