Supplements Flashcards
What is the advantage of taking carnitine, and how does this work?
Carnitine can enhance acetyl-CoA within the mitochondria by converting it into acylcarnitine, which can directly cross the mitochondrial membrane, which is then oxidized and converted back into acetyl-CoA, ready for TCA entry.
Thus can increase speed of energy supply aerobically/ non glycolysis at low intensities.
With caffeine. what can be the effects for regular uses vs non users for actuate effects and performance with chronic supplementation?
Acutely non users gain a much greater advantage compared to regular uses.
However, in both users and non users there is still an improvement from acute ingestions. But if they are habituated to consumption, performance actually decreases.
What is the effect of ketone bodies on fasted exercise at 70% vo2 max, 75% vo2max, and then follow up exercise when not fasted?
Enhanced CHO retention during fasted exercise.
However, no performance difference during exercise in fed state. IN regards to power output and performance time. Moreover glycogen concentration was the same post exercise.
What are the 4 groups of supplements based on the AIS and some example that fit in each ?
Group A: Supported for used in specific situations -Sports Drinks/Gels, Caffeine, Bicarbonate, Multivitamin, mineral
Group B: Deserving of further research -
β-alanine, Carnitine, β-hydroxy-β-methylbutyrate, Quercetin, Anti-oxidants/polyphenols
Group C: No meaningful proof of beneficial effects -
Ribose, Pyruvate, Chromium picolinate, ZMA, Coenzyme, Glucosamine
Group D: Banned or at high risk of contamination -
Glycerol, Methylhexanamine, pro-hormones, Ginseng and other herbals.
