| Texto completo | |
| Autor(es): |
Peacock, J.
;
Sparks, S. A.
;
Middlebrook, I
;
Hilton, N. P.
;
Tinnion, D.
;
Leach, N.
;
Saunders, B.
;
McNaughton, L. R.
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | RESEARCH IN SPORTS MEDICINE; v. 29, n. 6, p. 12-pg., 2021-03-12. |
| Resumo | |
To compare the pharmokinetic and gastrointestinal (GI) symptom responses between an equal dose of sodium bicarbonate and sodium citrate using delayed-release capsules. Thirteen active males (age 20.5 +/- 2.1 y, height 1.82 +/- 0.1 m and body mass 76.5 +/- 9.6 kg) consumed either 0.3 g(.)kg(-1) BM sodium bicarbonate, sodium citrate or a placebo, using a double-blind, randomized crossover design. Blood bicarbonate [HCO3 (-)] concentration, pH and GI symptoms were measured pre-ingestion and every 10 min for 180 min post-consumption. [HCO3 (-)] concentration (P < 0.001) and pH (P = 0.040) were significantly higher in the sodium bicarbonate condition compared with sodium citrate condition up to 3 h post-consumption. Peak blood HCO3 (-) concentration was significantly higher with sodium bicarbonate compared with citrate (P < 0.001). Mean GI symptom scores were lower (P = 0.037) for sodium citrate (1.5 +/- 1.8 AU) than bicarbonate (2.6 +/- 3.1 AU), with considerable inter-individual variability. No GI symptoms were reported following consumption of the placebo. Both substances alter [HCO3 (-)] values significantly, with sodium bicarbonate causing significantly higher pH and [HCO3 (-)] values than the same dose of sodium citrate, but results in slightly more severe GI symptoms. (AU) | |
| Processo FAPESP: | 16/50438-0 - Suplementação nutricional e exercício para otimizar o desempenho: foco nas respostas individuais e um passo para a nutrição esportiva personalizada |
| Beneficiário: | Bryan Saunders |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |