Abstract
In this study, we conducted a comparative experiment of four types of caps (the new cap, breathable brim cap, mesh cap, and normal cap) to verify the effects of the new cap developed for defense against the heat. In the test simulating the cap’s internal environment when running outdoors, the new cap had a temperature increase of only 28.4 ℃ , compared with 31.3 ℃ for the mesh cap, which had the most striking increase in inside temperature. Likewise, outdoor running test (10,000m run, 8 subjects) under the blazing sun, the tympanic temperature of subjects wearing the other three caps had increased significantly after the run, while that of those wearing the new cap had not increased significantly. Furthermore, subjects felt less stifling and superior head coolness with the new cap than the other caps during practical running tests. In addition, runners wearing the new cap in the Marathon Grand Championship in September 2019 also gave high ratings for breathability, head coolness, and reduced stuffiness. This has suggested that the new cap effectively provides defense against the heat when running.
