Key result
Cycle ergometer training reduces constant-load blood lactate by ~53% over three weeks.
Why the study?
The time course of adaptation in blood lactate concentration during constant-load exercise in response to training was not well characterized.
Does a 3-week exercise training program improve blood lactate concentration and VO2max in healthy subjects?
Does a 3-week exercise training program improve blood lactate concentration and VO2max in healthy subjects?
Effect estimate: 53% decrease
Absolute Event Rate: 3.7% vs 7.8%
p-value: p=<0.01
Exercise training rapidly and exponentially decreases blood lactate response to constant-load exercise, with adaptations occurring independently of changes in VO2max.
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May indicate rapid lactate adaptations in healthy adults; leaves open time course and relevance for patients with cardiovascular disease.
Gaesser et al. (1988) studied Healthy subjects (n=13). Cycle ergometer training vs. Pre-training baseline was evaluated on Blood lactate concentration ([La]) during constant-load exercise (53% decrease, p=<0.01). Cycle ergometer training for 3 weeks decreased constant-load blood lactate concentration by 53% (from 7.8 to 3.7 mM, P<0.01) with a half-time of 10.7 days.
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