Martini, Angelo Ruediger PisaniFerreira Júnior, João BatistaBorba, Diego de AlcantaraCoelho, Leonardo Gomes MartinsCoelho, Daniel BarbosaPrado, Luciano Sales2017-08-102017-08-102016MARTINI, A. R. P. et al. Effects of human head hair on performance and thermoregulatory responses during 10-km outdoor running in healthy men. Revista Brasileira de Cineantropometria & Desempenho Humano, v. 18, p. 155-165, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-00372016000200155>. Acesso em: 29 ago. 2017.1980-0037http://www.repositorio.ufop.br/handle/123456789/8519The aim of the present study was to evaluate the effects of human head hair on performance and thermoregulatory responses during 10-km outdoor running in healthy men. Twelve healthy males (29.5 ± 3.7 years, 174.9 ± 4.3 cm, 72.7 ± 3.2 kg and VO2max 44.6 ± 3.4 ml.kg-1.min-1) participated in two self-paced outdoor 10-km running trials separated by 7 days: 1) HAIR, subjects ran with their natural head hair; 2) NOHAIR, subjects ran after their hair had been totally shaved. Average running velocity was calculated from each 2-km running time. Rectal temperature, heart rate and physiological strain index were measured before and after the 10-km runs and at the end of each 2 km. The rate of heat storage was measured every 2 km. The environmental stress (WBGT) was measured every 10 min. The running velocity (10.9 ± 1 and 10.9 ± 1.1 km.h-1), heart rate (183 ± 10 and 180 ± 12 bpm), rectal temperature (38.82 ± 0.29 and 38.81 ± 0.49oC), physiological strain index (9 ± 1 and 9 ± 1), or heat storage rate (71.9 ± 64.1 and 80.7 ± 56.7 W.m-1) did not differ between the HAIR and NOHAIR conditions, respectively (p>0.05). There was no difference in WBGT between the HAIR and NOHAIR conditions (24.0 ± 1.4 and 23.2 ± 1.5ºC, respectively; p=0.10). The results suggest that shaved head hair does not alter running velocity or thermoregulatory responses during 10-km running under the sun.en-USabertoBody temperature regulationSolar radiationVelocityArtigo publicado em periodicoOs trabalhos publicados no periódico Revista Brasileira de Cineantropometria & Desempenho Humano estão sob Licença Creative Commons que permite copiar, distribuir e transmitir o trabalho desde que sejam citados o autor e o licenciante. Fonte: Revista Brasileira de Cineantropometria & Desempenho Humano <https://periodicos.ufsc.br/index.php/rbcdh/about/submissions#copyrightNotice>. Acesso em: 26 ago. 2019.