@markus_marthaler: Most people think swimming is easy on the body because you’re in water. It’s not. Practicing, competitions, open water and ice swims. The demands are different from running or cycling, but the physiology is the same: your muscles are burning through glycogen, losing electrolytes through sweat (yes, you sweat in water), and fighting fatigue with every stroke cycle. The part that breaks most swimmers isn’t fitness. It’s the back half of a long session when the catch starts to collapse, the hips drop, and the stroke rate climbs because the body is searching for energy it doesn’t have. That’s where fuelling during training changes the game. I’ve been using Empower during my sessions. 40g in 750ml, during the swim. Carbs to keep the engine running. Potassium and magnesium to hold off cramping. EAAs so the muscles have what they need to stay coordinated, not just survive. You can’t feel good technique when your body is running on empty. You can’t hold a high elbow catch when your lats are shutting down. Nutrition isn’t separate from technique. It’s part of it. Train the stroke. Fuel the work.

markus_marthaler

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Wednesday 08 April 2026 15:13:07 GMT