PMID- 29590260
OWN - NLM
STAT- MEDLINE
DCOM- 20180425
LR  - 20181114
IS  - 1414-431X (Electronic)
IS  - 0100-879X (Print)
IS  - 0100-879X (Linking)
VI  - 51
IP  - 5
DP  - 2018 Mar 26
TI  - Effect of pre-exercise carbohydrate availability on fat oxidation and energy 
      expenditure after a high-intensity exercise.
PG  - e6964
LID - S0100-879X2018000500617 [pii]
LID - 10.1590/1414-431X20186964 [doi]
LID - e6964
AB  - The aim of this study was to test the hypothesis that reduced pre-exercise 
      carbohydrate (CHO) availability potentiates fat oxidation after an exhaustive 
      high-intensity exercise bout. Eight physically active men underwent a 
      high-intensity exercise ( approximately 95% V̇O2max) until exhaustion under low or high 
      pre-exercise CHO availability. The protocol to manipulate pre-exercise CHO 
      availability consisted of a 90-min cycling bout at  approximately 70% V̇O2max + 6 x 1-min at 
      125% V̇O2max with 1-min rest, followed by 48 h under a low- (10% CHO, low-CHO 
      availability) or high-CHO diet (80% CHO, high-CHO availability). Time to 
      exhaustion was shorter and energy expenditure (EE) lower during the 
      high-intensity exercise in low- compared to high-CHO availability (8.6+/-0.8 and 
      11.4+/-1.6 min, and 499+/-209 and 677+/-343 kJ, respectively, P<0.05). Post-exercise EE 
      was similar between low- and high-CHO availability (425+/-147 and 348+/-54 kJ, 
      respectively, P>0.05), but post-exercise fat oxidation was significantly higher 
      (P<0.05) in low- (7,830+/-1,864 mg) than in high-CHO availability (6,264+/-1,763 mg). 
      The total EE (i.e., exercise EE plus post-exercise EE) was similar between low- 
      and high-CHO availability (924+/-264 and 1,026+/-340 kJ, respectively, P>0.05). These 
      results suggest that a single bout of high-intensity exercise performed under 
      low-CHO availability increased post-exercise fat oxidation, and even with shorter 
      exercise duration, both post-exercise EE and total EE were not impaired.
FAU - Ferreira, G A
AU  - Ferreira GA
AD  - Grupo de Pesquisa em Ciencias do Esporte, Centro Academico de Vitoria, 
      Universidade Federal de Pernambuco, Vitoria de Santo Antao, PE, Brasil.
FAU - Felippe, L C
AU  - Felippe LC
AD  - Grupo de Pesquisa em Ciencias do Esporte, Centro Academico de Vitoria, 
      Universidade Federal de Pernambuco, Vitoria de Santo Antao, PE, Brasil.
FAU - Silva, R L S
AU  - Silva RLS
AD  - Grupo de Pesquisa em Ciencias do Esporte, Centro Academico de Vitoria, 
      Universidade Federal de Pernambuco, Vitoria de Santo Antao, PE, Brasil.
FAU - Bertuzzi, R
AU  - Bertuzzi R
AD  - Grupo de Estudos em Desempenho Aerobio, Escola de Educacao Fisica e Esporte, 
      Universidade de Sao Paulo, Sao Paulo, SP, Brasil.
FAU - De Oliveira, F R
AU  - De Oliveira FR
AD  - Nucleo de Estudos do Movimento Humano, Departamento de Educacao Fisica, 
      Universidade Federal de Lavras, Lavras, MG, Brasil.
FAU - Pires, F O
AU  - Pires FO
AD  - Grupo de Estudos em Psico-fisiologia do Exercicio, Escola de Artes, Ciencias e 
      Humanidades, Universidade de Sao Paulo, Sao Paulo, SP, Brasil.
FAU - Lima-Silva, A E
AU  - Lima-Silva AE
AD  - Grupo de Pesquisa em Ciencias do Esporte, Centro Academico de Vitoria, 
      Universidade Federal de Pernambuco, Vitoria de Santo Antao, PE, Brasil.
AD  - Grupo de Pesquisa Desempenho Humano, Universidade Tecnologica Federal do Parana, 
      Curitiba, PR, Brasil.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
DEP - 20180326
PL  - Brazil
TA  - Braz J Med Biol Res
JT  - Brazilian journal of medical and biological research = Revista brasileira de 
      pesquisas medicas e biologicas
JID - 8112917
RN  - 0 (Dietary Carbohydrates)
SB  - IM
MH  - Adipose Tissue/*metabolism/physiology
MH  - Adult
MH  - Carbohydrate Metabolism/*physiology
MH  - Dietary Carbohydrates/administration & dosage/*metabolism
MH  - Energy Metabolism/*physiology
MH  - Exercise Test/methods
MH  - Humans
MH  - Male
MH  - Oxidation-Reduction
MH  - Physical Exertion/*physiology
MH  - Time Factors
PMC - PMC5886548
EDAT- 2018/03/29 06:00
MHDA- 2018/04/26 06:00
PMCR- 2018/03/26
CRDT- 2018/03/29 06:00
PHST- 2017/10/20 00:00 [received]
PHST- 2018/02/02 00:00 [accepted]
PHST- 2018/03/29 06:00 [entrez]
PHST- 2018/03/29 06:00 [pubmed]
PHST- 2018/04/26 06:00 [medline]
PHST- 2018/03/26 00:00 [pmc-release]
AID - S0100-879X2018000500617 [pii]
AID - 10.1590/1414-431X20186964 [doi]
PST - epublish
SO  - Braz J Med Biol Res. 2018 Mar 26;51(5):e6964. doi: 10.1590/1414-431X20186964.