• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Efeito de uma sess?o de exerc?cio intervalado de alta intensidade e exerc?cio cont?nuo de moderada intensidade no perfil imunol?gico e inflamat?rio de homens com obesidade

Souza, Daniel Costa de 10 July 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-02-15T12:44:59Z No. of bitstreams: 1 DanielCostaDeSouza_DISSERT.pdf: 1625998 bytes, checksum: 824c5486dd368ffb01c3d3a1163f37f1 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-02-19T21:26:44Z (GMT) No. of bitstreams: 1 DanielCostaDeSouza_DISSERT.pdf: 1625998 bytes, checksum: 824c5486dd368ffb01c3d3a1163f37f1 (MD5) / Made available in DSpace on 2018-02-19T21:26:44Z (GMT). No. of bitstreams: 1 DanielCostaDeSouza_DISSERT.pdf: 1625998 bytes, checksum: 824c5486dd368ffb01c3d3a1163f37f1 (MD5) Previous issue date: 2017-07-10 / Introdu??o: O excesso de gordura corporal ? associado ? inflama??o cr?nica de baixo grau e uma maior incid?ncia de doen?as infecciosas. Estudos recentes, indicam que o exerc?cio intervalado de alta intensidade (EIAI) ? uma estrat?gia eficiente em fun??o do tempo para melhorar par?metros de sa?de de indiv?duos com obesidade. No entanto, pouco ? conhecido sobre o efeito de uma sess?o de EIAI no equil?brio de citocinas pro e anti-inflamat?rias em obesos. Objetivo: O objetivo do presente estudo foi comparar uma ?nica sess?o de EIAI e exerc?cio cont?nuo de moderada intensidade (ECMI) sobre os n?veis s?ricos de interferon-y (INF-y), interleucina 4 e 6 (IL-4) (IL-6) e INF-y/IL-4 em homens com obesidade. M?todos: Dez homens com obesidade (IMC>30 kg/m?) foram submetidos a tr?s sess?es experimentais com uma semana de intervalo em ordem aleat?ria: 1) EIAI: 10 x 60 s a 90% da FCm?x alternados por 60 s de recupera??o ativa; 2) ECMI: 20 min a 70% da FCmax; 3) Controle. As coletas de sangue para analisar os n?veis s?ricos de citocinas foram realizadas nos momentos pr?, p?s e 60 min ap?s as sess?es de exerc?cio ou controle. Os dados foram apresentados em m?dia ? DP. ANOVA fatorial com medidas repetidas e post hoc de Bonferoni foi utilizado para avaliar as diferen?as entre os momentos e condi??es de exerc?cio. O n?vel de signific?ncia aceito foi de P< 0.05. Resultados: O EIAI reduziu os n?veis de INF-y imediatamente ap?s o exerc?cio (41,09 ? 14,99; P=0,032) e 60 min ap?s o exerc?cio (43,45 ? 11,76; P=0,003) em rela??o ao pr?-exerc?cio (46,64 ? 13,14), ao mesmo tempo que promoveu aumento nos n?veis de IL-4 imediatamente ap?s o exerc?cio (36,47 ? 11,09; P=0,007) em rela??o ao pr?-exerc?cio (32,04 ? 8,5). O ECMI promoveu aumento nos n?veis de INF-y imediatamente ap?s o exerc?cio (47,48 ? 8,42; P=0,025) e 60 min ap?s o exerc?cio (50,13 ? 7,99; P=0,004) em rela??o ao valor pr?-exerc?cio (44,21 ? 8,11). Ambas as condi??es de exerc?cio aumentaram os n?veis de IL-6 at? 60 min ap?s o exerc?cio (P<0.05). A raz?o INF-Y/IL-4 reduziu imediatamente ap?s (1,24 ? 0,60; P=0,002) e 60 min ap?s o exerc?cio (1,32 ? 0,53; P=0,005) em rela??o ao pr?-exerc?cio (1,58 ? 0,64) apenas para o EIAI. Conclus?o: Uma sess?o de EIAI induziu um padr?o de resposta anti-inflamat?ria e est? associado a preju?zos na resposta imune intracelular contra pat?genos. Por outro lado, uma breve sess?o de ECMI induziu altera??es no padr?o de citocinas seguindo um padr?o pr?-inflamat?rio o que pode favorecer ? melhora da resposta imune intracelular em homens com obesidade. / Introduction: The excess of body fat is associated with chronic low-grade inflammation and high rates of infectious disease. Emerging evidences indicate that high intensity interval exercise (HIIE) is a time-efficient approach to promote health in obese population. However, little is known about the influence of HIIE on pro and anti-inflammatory cytokine balance in obesity. Purpose: Our purpose was to compare the acute effects of HIIE and moderate-intensity continuous exercise (MICE) on cytokine levels, include interferon-y (INF-y), interleukin 4 and 6 (IL-4) (IL-6) levels and INF-y/IL-4 ratio in obese males. Methods: Ten obese males (BMI>30 kg/m?) were submitted into two experimental sessions with a week interval in a randomized order: 1) HIIE: 10 x 60 s at 90% of HRm?x interspersed by active recovery; 2) MICE: 20 min at 70% of HRmax;. Cytokines was analyzed before, immediately after and 60 min after-exercise. Data was presented in mean ? SD. ANOVA 2-way with repeated measures and post hoc Bonferoni was used to assess differences between moments and exercise conditions. Statistical significance was accepted at a p value of ? 0.05. Results: The HIIE results in decreased INF-Y levels immediately after-exercise (41,09 ? 4,74; P=0,032) and 60 min after-exercise (43,45 ? 3,72) (P=0,003) compared with before-exercise (46,64 ? 4,15), while an significant elevation in IL-4 levels was observed immediately after-exercise (36,47 ? 3,5) (P=0,007). The MICE results in increase of INF-Y levels after exercise (P=0,025) and 60 min post-exercise (P=0,004). Both exercise conditions results in increase of IL-6 levels after exercise (P<0.05). The INF-Y/IL-4 ratio decreases immediately after (P=0,002) and 60 min after-exercise (P=0,005) only for HIIE. Conclusion: HIIE induces imbalance in INF-Y/IL-4 ratio 60 min after exercise following an anti-inflammatory pattern. For other hand, MICE did not promote imbalance in INF-Y/IL-4 to 60 min after exercise in obese males.

Page generated in 0.0196 seconds