[Baskagge]

Ursprungligen postat av Termy

Det vore ju intressant att se forskning framöver för att hitta någon sweet spot för C-vitamin om högre doser nu har läkande effekt på diverse muskuloskeletala skador, men om det finns någon kritisk gräns där för mycket hämmar träningsresponsen mer än vad den gör nytta.

Ja det är svårt att veta hur mycket c-vitamin man behöver för de påstådda fördelarna. En del tar 10-50 gram om dagen. Man får väl prova sig fram helt enkelt och se om man märker någon förbättring.

This study is the first to investigate the effects of high dosages of vitamins C and E on the cellular and physiological adaptations to strength training in humans.

The vitamin C and E supplement did not significantly blunt muscle hypertrophy during 10 weeks of training; however, some measurements of muscle strength revealed lower increases in the supplemented group than the placebo group.

Even though the cellular events are not clearly reflected in physiological and performance measurements, this study implies that redox signalling is important for inducing skeletal muscle adaptations to strength training and that vitamin C and E supplements in high dosages should be avoided by healthy, young individuals engaged in strength training.

The aim of this study was to investigate the effects of vitamin C and E supplementation on adaptations to strength training. Our results are equivocal because we observed an inhibition of the acute protein signalling after a standardized strength exercise session, but there were no significant group differences in muscle protein fractional synthetic rate or muscle growth over 10 weeks of training. Still, the gains in muscle strength were partly blunted in the vitamin C and E group. It therefore appears that vitamin C and E supplementation can interfere with the cellular signalling after exercise, such as MAPKs, and ubiquitination, but redundancy in the pathways may overpower most of these effects, and adaptions over time are less affected. Nevertheless, we suggest that young, healthy individuals who exercise for improved strength and muscle growth should avoid consuming high dosages of vitamins C and E close to the exercise sessions because, if anything, the effects tend to be undesirable.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270502/