title: Effects of body-mapping-designed clothing on heat stress and running performance in a hot environment.
abstract: To investigate clothing-induced differences in human thermal response and running performance, eight male athletes participated in a repeated-measure study by wearing three sets of clothing (CloA, CloB, and CloC). CloA and CloB were body-mapping-designed with 11% and 7% increased capacity of heat dissipation respectively than CloC, the commonly used running clothing. The experiments were conducted by using steady-state running followed by an all-out performance running in a controlled hot environment. Participants' thermal responses such as core temperature (Tc), mean skin temperature ([Formula: see text]), heat storage (S), and the performance running time were measured. CloA resulted in shorter performance time than CloC (323.1 ± 10.4 s vs. 353.6 ± 13.2 s, p = 0.01), and induced the lowest [Formula: see text], smallest ΔTc, and smallest S in the resting and running phases. This study indicated that clothing made with different heat dissipation capacities affects athlete thermal responses and running performance in a hot environment. Practitioner Summary: A protocol that simulated the real situation in running competitions was used to investigate the effects of body-mapping-designed clothing on athletes' thermal responses and running performance. The findings confirmed the effects of optimised clothing with body-mapping design and advanced fabrics, and ensured the practical advantage of developed clothing on exercise performance.
authors.affiliation: a Institute of Textiles and Clothing, The Hong Kong Polytechnic University , Hong Kong , China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Jiao
authors.affiliation: b School of Materials , The University of Manchester , Manchester , UK.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.affiliation: c The Hong Kong Research Institute of Textiles and Apparel Limited , Hong Kong , China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yao
authors.affiliation: d School of Public Health , Sun Yat-sen University , Guangzhou , China.
authors.forename: Yajun
authors.initials: Y
authors.lastname: Chen
authors.affiliation: a Institute of Textiles and Clothing, The Hong Kong Polytechnic University , Hong Kong , China.
authors.forename: Yueping
authors.initials: Y
authors.lastname: Guo
authors.affiliation: e Department of Sports Science and Physical Education , The Chinese University of Hong Kong , Hong Kong , China.
authors.forename: Stephen H S
authors.initials: SHS
authors.lastname: Wong
authors.affiliation: a Institute of Textiles and Clothing, The Hong Kong Polytechnic University , Hong Kong , China.
authors.forename: Frency S F
authors.initials: FSF
authors.lastname: Ng
authors.affiliation: a Institute of Textiles and Clothing, The Hong Kong Polytechnic University , Hong Kong , China.
authors.forename: Junyan
authors.initials: J
authors.lastname: Hu
mesh_terms: D054874:Athletic Performance / Q000502:physiology; D001833:Body Temperature Regulation; D003020:Clothing; D005080:Exercise Test; D018882:Heat Stress Disorders / Q000517:prevention & control*; D006358:Hot Temperature; D006801:Humans; D008297:Male; D012420:Running / Q000502:physiology*; D012881:Skin Temperature; D055815:Young Adult
keywords: Sportswear; core temperature; heat dissipation; running exercise; thermal responses