Relationship between training status and maximal fat oxidation rate
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
17/04/2012
17/04/2012
2010
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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 |
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 |