Key result
During repeated cycling sprints, boys demonstrated significantly lower hydrogen ion concentrations after the 10th sprint compared to men (43.8 vs 66.9 nmol/l; P<0.001).
Why the study?
Does the acid-base balance response to repeated cycling sprints differ between boys and men?
Population
11 boys (mean age 9.6 +/- 0.7 years) and 10 men (mean age 20.4 +/- 0.8 years)
Comparison
Ten 10-s sprints on a cycle ergometer separated… vs Comparison between boys and men
Design
Cross-sectional
Authors
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May indicate enhanced acid-base regulation in boys during repeated sprints; hypothesis-generating and should not yet change practice.
Cross-Sectional (n=21)
Does the acid-base balance response to repeated cycling sprints differ between boys and men?
Absolute Event Rate: 43.8% vs 66.9%
p-value: p=<0.001
During repeated sprints, ventilatory regulation related to lactic acidosis is more prominent during early rest intervals in boys compared to men.
Ratel et al. (2002) conducted a cross-sectional in Healthy (n=21). Childhood (Boys) vs. Adulthood (Men) was evaluated on Hydrogen ion concentration ([H+]) after the 10th sprint (nmol/l) (p=<0.001). During repeated cycling sprints, boys demonstrated significantly lower hydrogen ion concentrations after the 10th sprint compared to men (43.8 vs 66.9 nmol/l; P<0.001).
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