Relationship between training status and maximal fat oxidation rate


Autoria(s): Lima-Silva, Adriano Eduardo; Bertuzzi, Rômulo Cássio de Moraes; Pires, Flavio de Oliveira; Gagliardi, Joao F. L.; Barros, Ronaldo V.; Hammond, John; Kiss, Maria Augusta Peduti Dal'Molin
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

17/04/2012

17/04/2012

2010

Resumo

This study aimed to compare maximal fat oxidation rate parameters between moderate-and low-performance runners. Eighteen runners performed an incremental treadmill test to estimate individual maximal fat oxidation rate (Fat(max)) based on gases measures and a 10,000-m run on a track. The subjects were then divided into a low and moderate performance group using two different criteria: 10,000-m time and VO(2)max values. When groups were divided using 10,000-m time, there was no significant difference in Fat(max) (0.41 +/- 0.16 and 0.27 +/- 0.12 g.min(-1), p = 0.07) or in the exercise intensity that elicited Fat(max) (59.9 +/- 16.5 and 68.7 +/- 10.3 % (V) over dotO(2max), p = 0.23) between the moderate and low performance groups, respectively (p > 0.05). When groups were divided using VO(2max) values, Fat(max) was significantly lower in the low VO(2max) group than in the high VO(2max) group (0.29 +/- 0.10 and 0.47 +/- 0.17 g.min(-1), respectively, p < 0.05) but the intensity that elicited Fat(max) did not differ between groups (64.4 +/- 14.9 and 61.6 +/- 15.4 % VO(2max)). Fat(max) or % VO(2max) that elicited Fat(max) was not associated with 10,000 m time. The only variable associated with 10,000-m running performance was % VO(2max) used during the run (p < 0.01). In conclusion, the criteria used for the division of groups according to training status might influence the identification of differences in Fat(max) or in the intensity that elicits Fat(max).

Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)

Identificador

JOURNAL OF SPORTS SCIENCE AND MEDICINE, v.9, n.1, p.31-35, 2010

1303-2968

http://producao.usp.br/handle/BDPI/14609

http://www.jssm.org/vol9/n1/5/v9n1-5pdf.pdf

Idioma(s)

eng

Publicador

JOURNAL SPORTS SCIENCE & MEDICINE

Relação

Journal of Sports Science and Medicine

Direitos

openAccess

Copyright JOURNAL SPORTS SCIENCE & MEDICINE

Palavras-Chave #fat oxidation #running performance #indirect calorimetry #EXERCISE INTENSITY #FRACTIONAL UTILIZATION #FATIGUE RESISTANCE #CROSSOVER CONCEPT #AEROBIC CAPACITY #GRADED-EXERCISE #WIDE-RANGE #RUNNERS #DISTANCE #MUSCLE #Sport Sciences
Tipo

article

original article

publishedVersion