Key result
Performing eight 10-s sprints increased total urinary purine excretion at 2 hours of recovery (537 µmol) compared to one (270 µmol) or four (327 µmol) sprints (P<0.05).
Why the study?
Does increasing the number of 10-s sprint bouts increase purine loss in men?
Population
9 men, mean age 24.8 +/- 1.6 yr, weight 76 +/- 3.9 kg, peak O2 consumption 3.87 +/- 0.16 l/min
Comparison
Four or eight 10-s sprints on a cycle ergometer… vs One (B1) 10-s sprint on a cycle ergometer
Design
RCT, randomized order
Follow-up
24 h after exercise
Authors
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Eight 10-s sprints heighten purine loss versus fewer bouts; extends dose-response evidence on ATP turnover during repeated anaerobic exercise.
RCT (n=9)
Randomized order
Does increasing the number of 10-s sprint bouts increase purine loss in men?
Absolute Event Rate: 537% vs 270%
p-value: p=<0.05
Increasing the number of intermittent 10-s sprint bouts enhances the loss of purines from the body in men.
Stathis et al. (1999) reported an RCT. Repeated 10-s sprint bouts (8 bouts) vs. One or four 10-s sprints was evaluated on Total urinary excretion of purines at 2 h of recovery (p=<0.05). Performing eight 10-s sprints increased total urinary purine excretion at 2 hours of recovery (537 µmol) compared to one (270 µmol) or four (327 µmol) sprints (P<0.05).
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