Enhanced aerobic exercise performance in women by a combination of three mineral Chelates plus two conditionally essential nutrients.
J Int Soc Sports Nutr
; 14: 42, 2017.
Article
em En
| MEDLINE
| ID: mdl-29158726
ABSTRACT
BACKGROUND:
Certain essential and conditionally essential nutrients (CENs) perform functions involved in aerobic exercise performance. However, increased intake of such nutrient combinations has not actually been shown to improve such performance.METHODS:
For 1 mo, aerobically fit, young adult women took either a combination of 3 mineral glycinate complexes (daily dose 36 mg iron, 15 mg zinc, and 2 mg copper) + 2 CENs (daily dose 2 g carnitine and 400 mg phosphatidylserine), or the same combination with generic mineral complexes, or placebo (n = 14/group). In Trial 1, before and after 1 mo, subjects were tested for 3 mile run time (primary outcome), followed by distance covered in 25 min on a stationary bike (secondary outcome), followed by a 90 s step test (secondary outcome). To test reproducibility of the run results, and to examine a lower dose of carnitine, a second trial was done. New subjects took either mineral glycinates + CENs (1 g carnitine) or placebo (n = 17/group); subjects were tested for pre- and post-treatment 3 mile run time (primary outcome).RESULTS:
In Trial 1, the mineral glycinates + CENs decreased 3 mile run time (25.6 ± 2.4 vs 26.5 ± 2.3 min, p < 0.05, paired t-test) increased stationary bike distance after 25 min (6.5 ± 0.6 vs 6.0 ± 0.8 miles, p < 0.05, paired t-test), and increased steps in the step test (43.8 ± 4.8 vs 40.3 ± 6.4 steps, p < 0.05, paired t-test). The placebo significantly affected only the biking distance, but it was less than for the glycinates-CENs treatment (0.2 ± 0.4. vs 0.5 ± 0.1 miles, p < 0.05, ANOVA + Tukey). The generic minerals + CENs only significantly affected the step test (44.1 ± 5.2 vs 41.0 ± 5.9 steps, p < 0.05, paired t-test) In Trial 2, 3 mile run time was decreased for the mineral glycinates + CENs (23.9 ± 3.1 vs 24.7 ± 2.5, p < 0.005, paired t-test), but not by the placebo. All changes for Test Formula II or III were high compared to placebo (1.9 to 4.9, Cohen's D), and high for Test Formula II vs I for running and biking (3.2 & 3.5, Cohen's D).CONCLUSION:
In summary, a combination of certain mineral complexes plus two CENs improved aerobic exercise performance in fit young adult women.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Fosfatidilserinas
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Resistência Física
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Exercício Físico
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Carnitina
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Quelantes
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Suplementos Nutricionais
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Antioxidantes
Tipo de estudo:
Clinical_trials
Idioma:
En
Revista:
J Int Soc Sports Nutr
Ano de publicação:
2017
Tipo de documento:
Article