What the study found
The review considers several interacting explanations for Kenyan and Ethiopian distance-running success and rejects a single unique genetic or physiological explanation.
Participants and protocol
The authors discuss laboratory, field and observational evidence concerning economy, body characteristics, altitude, training and social context.
What this cannot establish
This 2012 narrative synthesis does not establish individual ability from nationality or ethnicity. Observational explanations and group averages cannot predict one runner's potential or prescribe their training.
Publication details
- Record
- PubMed 22634972
- Publication types
- Review
- Indexed subjects
- Muscle, Skeletal · Chromosomes, Human, Y · Hemoglobins · DNA, Mitochondrial · Diet
- Source record checked
- 2026-10-18
Publication type and subject indexing describe the record; they are not a quality grade or proof of a benefit. An abstract does not replace a review of the full methods and results.
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Performance Science Lab
Research summaries for endurance athletes, with study context, practical protocols, and clear limitations.
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