Locations: Martigny and Surroundings, flexible in Valais and Vaud

Training & performance articles

Practical, evidence-based articles on endurance training, recovery and athlete health — written by a national running champion and Olympic-distance triathlon vice-champion coaching in Martigny.

"Empty Tank" Syndrome: Why Iron Matters for Endurance Athletes

12 March 2026 · 2 min read

"Empty Tank" Syndrome: Why Iron Matters for Endurance Athletes

Heavy legs despite good training? Low iron cuts oxygen delivery long before haemoglobin drops. Which blood markers to ask for, and the red flags.

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