The effect of sodium bicarbonate ingestion on 1500-m racing time.
Twelve athletes, all of whom regularly participated in middle- or long-distance running races at club to national standard, competed in simulated 1500-m races under three conditions: following ingestion of 300 mg sodium bicarbonate per kg of body mass (B); following ingestion of a placebo (100 mg sodium chloride per kg of body mass and 200 mg calcium carbonate per kg of body mass) (P); and following ingestion of neither (C). A double-blind protocol was used between the B and P trials. Each condition was replicated so that the athletes competed in six races. Ten of the athletes completed all the races. The athletes' average times for trials B, P and C were 253.9, 256.8 and 258.0 s, respectively. The data were analysed using a two-way ANOVA with replicates and Tukey tests. This revealed a difference between trial B and trials P and C (P < 0.05), but no difference between trials P and C. These findings, therefore, indicate that sodium bicarbonate can have an ergogenic effect upon 1500-m running.
Bird
S R
SR
Department of Sport Science, Canterbury Christ Church College, Kent, UK.
Wiles
J
J
Robbins
J
J
D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D015992:Body Mass Index; D002119:Calcium Carbonate / Q000008:administration & dosage / Q000494:pharmacology; D004311:Double-Blind Method; D006801:Humans; D008297:Male; D009042:Motivation; D010809:Physical Fitness; D010919:Placebos; D012420:Running / Q000502:physiology*; D017693:Sodium Bicarbonate / Q000008:administration & dosage / Q000494:pharmacology*; D013997:Time Factors
D010919:Placebos; D017693:Sodium Bicarbonate; D002119:Calcium Carbonate