sodium bicarbonate glycolytic contribution
Eur J Sport Sci. 2018 Apr;18(3):431-440. doi: 10.1080/17461391.2018.1424942. Epub 2018 Jan 20.
Sodium bicarbonate ingestion increases glycolytic contribution and improves performance during simulated taekwondo combat.
To investigate the effect of sodium bicarbonate (NaHCO3) on performance and estimated energy system contribution during simulated taekwondo combat.
Nine taekwondo athletes completed two experimental sessions separated by at least 48 h. Athletes consumed 300 mg/kg body mass of NaHCO3 or placebo (CaCO3) 90 min before the combat simulation (three rounds of 2 min separated by 1 min passive recovery), in a double-blind, randomized, repeated-measures crossover design. All simulated combat was filmed to quantify the time spent fighting in each round. Lactate concentration [La-] and rating of perceived exertion (RPE) were measured before and after each round, whereas heart rate (HR) and the estimated contribution of the oxidative (WOXI), ATP (adenosine triphosphate)-phosphocreatine (PCr) (WPCR), and glycolytic (W[La-]) systems were calculated during the combat simulation.
[La-] increased significantly after NaHCO3 ingestion, when compared with the placebo condition (+14%, P = 0.04, d = 3.70). NaHCO3 ingestion resulted in greater estimated glycolytic energy contribution in the first round when compared with the placebo condition (+31%, P = 0.01, d = 3.48). Total attack time was significantly greater after NaHCO3 when compared with placebo (+13%, P = 0.05, d = 1.15). WOXI, WPCR, VO2, HR and RPE were not different between conditions (P > 0.05).
NaHCO3 ingestion was able to increase the contribution of glycolytic metabolism and, therefore, improve performance during simulated taekwondo combat.
Does this mean that we're able to deplete our glycogen stores in much efficient way during those depletion workouts on Monday and Tuesday where our rest times between sets are kinda short?
Does it make sense?
Hell, I think that for people who like to do some sprint workouts would do just that...
Maybe it could further increase the glycogen depletion during the workout on thursday before "total" depletion?
I'll be sure to test it during the next few weeks for sure. I have like, 4 weeks before maintenance and then mass gains phase.