SOURCE-LINKED STUDY SUMMARY
beta-Alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters.
Abstract summarizedQuality not appraised
- What was studied
- This double-blind trial tested whether beta-alanine raises muscle carnosine and improves repeated-contraction performance, isometric endurance or 400-m running.
- Who / model studied
- Fifteen male competitive athletes trained for the 400-m sprint participated.
- Studied dose & schedule
- Athletes received oral beta-alanine at 4.8 g/day or placebo for four weeks.
- What the study found
- Beta-alanine increased soleus carnosine 47% and gastrocnemius carnosine 37%, and improved torque during later repeated knee-extension bouts. It did not improve isometric endurance or 400-m time.
- Limitations & context
- The sample was small, male and sprint-trained; the abstract reports no adverse-event information and the biochemical gain did not translate to faster 400-m performance.
Read summary source ↗ · Prepared 10/6/2026 · AI-assisted, source-based summary
Review record & corrections
Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.
No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.
Inspect the source · Correction policyResearch findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.
Original publication ↗ · DOI: 10.1152/japplphysiol.00397.2007