The Running Channel Podcast 157: The Role of Genetics in Running Performance
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Feb 14, 2026 A lively debate about how much running talent is inherited versus earned through training. Conversations on muscle fiber types, genetic links to endurance gains, and why some athletes respond better to certain training. Practical chat on using genetic ideas for injury risk and smarter workouts. A spicy detour into a half marathon time that may not count because of lead car drafting.
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Genes Are One Piece Of The Puzzle
- Genetics shape physiological traits like muscle composition and stress resilience that affect running potential.
- Environment and training also shape psychology and ability, so genes are one part of a bigger picture.
School Cross-Country To Rapid Improvement
- Andy recalls finishing mid-pack at school cross-country then improving rapidly after starting proper training.
- He uses this to show training can unlock latent potential despite early genetics signals.
Response To Training Varies By Genes
- Genes influence training response so some people are 'responders' or 'non-responders' to specific stimuli like altitude.
- That variation matters most at elite margins where tiny differences decide outcomes.