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Titolo:
Interactions among dietary fat, mineral status, and performance of endurance athletes: A case study
Autore:
Lukaski, HC; Bolonchuk, WW; Klevay, LM; Milne, DB; Sandstead, HH;
Indirizzi:
USDA ARS, Grand Forks Human Nutr Res Ctr, Grand Forks, ND 58202 USA USDA ARS Grand Forks ND USA 58202 Nutr Res Ctr, Grand Forks, ND 58202 USA Univ N Dakota, Dept Hlth Phys Educ 7 Recreat, Grand Forks, ND 58202 USA Univ N Dakota Grand Forks ND USA 58202 Recreat, Grand Forks, ND 58202 USA Univ Texas, Med Branch, Dept Prevent Med & Community Hlth, Galveston, TX 77555 USA Univ Texas Galveston TX USA 77555 Community Hlth, Galveston, TX 77555 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF SPORT NUTRITION AND EXERCISE METABOLISM
fascicolo: 2, volume: 11, anno: 2001,
pagine: 186 - 198
SICI:
1526-484X(200106)11:2<186:IADFMS>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXERCISE PERFORMANCE; IRON-ABSORPTION; MUSCLE GLYCOGEN; CARBOHYDRATE; METABOLISM; INSULIN; COPPER; RATS;
Keywords:
saturated fat; polyunsaturated fat; copper; iron; magnesium; zinc; athletes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Lukaski, HC USDA ARS, Grand Forks Human Nutr Res Ctr, Grand Forks, ND 58202 USA USDA ARS Grand Forks ND USA 58202 , Grand Forks, ND 58202 USA
Citazione:
H.C. Lukaski et al., "Interactions among dietary fat, mineral status, and performance of endurance athletes: A case study", INT J SP N, 11(2), 2001, pp. 186-198

Abstract

In a pilot study, performance measures and mineral metabolism were assessed in 3 male endurance cyclists who consumed isoenergetic, isonitrogenous diets for 28-day periods in a randomized, crossover design in which dietary carbohydrate, polyunsaturated, or saturated fat contributed about 50% of daily energy intake. Peak aerobic capacity [62 ml/(kg min)] was unaffected by diet. Endurance capacity at 70-75% peak aerobic capacity decreased with thepolyunsaturated fat diet. Copper retention tended to be positive only withsaturated far. Less iron and zinc were retained (intake - losses), and fecal losses of these minerals increased with the polyunsaturated fat. Blood biochemical measures of trace element nutritional status were unaffected by diet, except serum ferritin, which tended to decrease during consumption ofthe polyunsaturated fat diet. These preliminary results suggest that dietshigh in polyunsaturated fat, particularly linoleic acid, impair absorptionand utilization of iron and zinc, and possibly magnesium, and may reduce endurance performance.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 14:57:52