An investigation into the effects of sodium citrate ingestion on high-intensity exercise performance.
This study examined the effect of sodium citrate ingestion on high-intensity cycling performance in repeated 45-sec bouts. Twelve subjects (9 male and 3 female) ingested either a sodium citrate solution (0.3 g x kg-1 body mass[BM]) or a placebo 90 min prior to exercise. Postingestion blood HCO3 concentrations were significantly higher in the citrate trial (p<.01), but there was no difference over the five bouts (p<.05) and postexercise blood lactate concentrations significantly increased over the five bouts (p<0.01), but there were no differences between trials. We conclude that sodium citrate ingestion (0.3 g x kg-1 BM) is not an effective ergogenic aid for high-intensity, intermittent exercise as simulated in this protocol.
van Someren
K
K
Human Performance Lab, Department of Sport, Health, and Exercise Science, St. Mary's University College, Waldegrave Road, Strwberry Hill, Twickenham, Middlesex, TW1 4SX, UK.
Fulcher
K
K
McCarthy
J
J
Moore
J
J
Horgan
G
G
Langford
R
R
D000328:Adult; D001639:Bicarbonates / Q000097:blood*; D002951:Citrates / Q000494:pharmacology*; D018592:Cross-Over Studies; D004311:Double-Blind Method; D015444:Exercise; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000097:blood; D008297:Male; D010101:Oxygen Consumption / Q000187:drug effects; D000077559:Sodium Citrate; D013178:Sports Medicine
D001639:Bicarbonates; D002951:Citrates; D007773:Lactates; D000077559:Sodium Citrate