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Table 2 Results of the studies with untrained volunteers submitted to endurance exercise and supplemented with vitamins C e E

From: Controversies of antioxidant vitamins supplementation in exercise: ergogenic or ergolytic effects in humans?

Study Experimental design Sample Duration Supplementation protocol Result
  Vitamin C Vitamin E Ergogenic Ergolytic
Bloomer et al. [13] Randomized, double-blind 15 trained and e 15 untrained subjects 14 d (pre-exercise) + 2 d (post-exercise) 2000 mg 835 mg
Gomez-Cabrera et al. [7] Randomized, double-blind 14 untrained subjects e 36 rats 8 weeks 1 g (humans) and 0.24 mg∙cm-2 (rodents) - N/R
Ristow et al. [3] Randomized, double-blind 20 trained and e 20 untrained subjects 4 weeks 1000 mg 440 mg N/R
Yfanti et al. [14] Randomized, double-blind 21 untrained subjects 16 weeks 500 mg 400 IU
Yfanti et al. [5] Randomized, double-blind 21 untrained subjects 16 weeks 500 mg 400 IU
Nalbant et al. [8] Randomized 57 elderly 6 months   900 IU
Nakhostin et al. [15] Randomized 16 untrained subjects N/R 1000 mg - ↑↓ N/R
  1. ↑ Improved exercise performance; Impaired exercise performance; ↑↓ Partial result; ↔ No results on exercise performance; IU – International Units; N/R – not reported.