Melhorias da aten????o e modula????o auton??mica card??aca ap??s um programa de treinamento intervalado com esfor??os supra m??ximos de duas semanas: uma abordagem de fidelidade

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-08-08T14:11:40Z No. of bitstreams: 1 ArilsonFernandesMendoncadeSousaTese2018.pdf: 5768876 bytes, checksum: 66d7e7ce78b9d2a4b54e615ac9d3282d (MD5) Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-08-08T14:11:52Z (GMT) No. of bitstreams: 1 ArilsonFernandesMendoncadeSousaTese2018.pdf: 5768876 bytes, checksum: 66d7e7ce78b9d2a4b54e615ac9d3282d (MD5) Made available in DSpace on 2018-08-08T14:11:52Z (GMT). No. of bitstreams: 1 ArilsonFernandesMendoncadeSousaTese2018.pdf: 5768876 bytes, checksum: 66d7e7ce78b9d2a4b54e615ac9d3282d (MD5) Previous issue date: 2018-05-25 Only two weeks of sprint interval training (SIT) has been shown to be associated with positive changes in aerobic capacity and cardiac autonomic control. Both aerobic capacity and autonomic control have been shown to be positively associated with improved attention. However, to date, the relationship between this type of training and attention has not been investigated yet. The aim of the present study was to investigate the influence of two weeks of SIT on aerobic capacity, cardiac autonomic control and attention components in healthy university students; Also, to verify if the training fidelity would influence these adaptations. One hundred and nine participants were divided into experimental (EG) and control (CG) groups. EG performed a SIT program consisting of 6 sessions of maximal 4 ?? 30 s all-out efforts on a cycle ergometer, interspersed with active 4-minute rests. The criterion for fidelity was to reach> 90% of the estimated maximum heart rate (HR) during sprint sessions. After analysis, EG was divided into fidelity groups HIGH (n = 26) and LOW (n = 46), respectively. The attention components were evaluated through the Attention Network Test (ANT). The aerobic capacity (VO2max) was estimated according to Astrand's nomogram while the sum of the skinfolds: pectoral, triceps, subscapular, medial axillary, abdomen, suprailiac and thigh was verified. Autonomic HR control was assessed by HR variability (HRV) and HR complexity at rest and during ANT, before and after six sessions of SIT. Both HIGH and LOW significantly increased aerobic capacity, vagal modulation before and during ANT and executive control, and decreased body fat after SIT (p 90% da frequ??ncia card??aca m??xima estimada (FC) durante as sess??es de TIsm. Ap??s as an??lises, o GE foi dividido em grupos de fidelidade alta, GEA (n = 26) e baixa, GEB (n = 46), respectivamente. Os componentes da aten????o foram avaliados por meio do Teste de Rede de Aten????o (ANT). A capacidade aer??bia (VO2max) foi estimada segundo o nomograma de Astrand enquanto o somat??rio de dobras cut??neas: peitoral, tr??ceps, subescapular, axilar m??dia, abd??men, supra-il??aca e coxa foi realizada. O controle auton??mico da FC foi avaliado por meio da VFC e complexidade da FC em repouso e durante o ANT, antes e depois de seis sess??es de TIsm. Ambos GEA e GEB aumentaram significativamente a capacidade aer??bia, modula????o vagal antes e durante a realiza????o do ANT e o controle executivo e diminui????o da gordura corporal ap??s o TIsm (p