Jonas Abrahamsen breaks down exactly how world tour pros structure winter training—and reveals why most amateurs get it completely wrong. From heat protocols and altitude camps to the surprising 18kg weight gain that transformed him into a Tour de France stage winner, this is a masterclass in the science and strategy behind professional cycling.
Key Takeaways
- Winter training volume (30-35 hours/week) should be periodized around training camps and race calendar, not arbitrary weekly cycles—pros have far fewer months to prepare than amateurs think
- Gaining weight and muscle mass can actually improve climbing performance and race results by increasing explosive power, injury resilience, and recovery; the 'lighter is faster' dogma doesn't apply to everyone
- Heat training at 35-39°C for 50 minutes, 5x per week, can boost VO2max significantly (70-84 in 5 weeks), but only when fresh—adding it during high fatigue or stress causes overtraining and poor recovery
- Proper nutrition fuels higher power outputs during training; eating more on training days directly increases caloric burn and produces measurably higher watts (250W vs 260W average in Jonas's example)
- Altitude camps (2300-2500m) for 3-4 weeks produce hemoglobin mass gains (~8%) and should include sufficient iron/magnesium supplementation and high caloric intake to support blood production
- Finding your optimal race weight matters more than chasing a predetermined target—Jonas settled at 78kg (up from 62kg) by eating normally and trusting his body, rather than constant restriction
Expert Quotes
"If you are eating good you also have 10 watts more in average and then also burning a lot more calories. So everything is like a circle—eating on training intervals can produce more power and then also burn more calories for you."
"Before I was like 60 kilo read that was a crazy thing, and then I was always hungry all the time. But now when I find my weight I can just eat what I want and my weight is very stable."
"Everything is possible but nothing is possible if you give up. I was coming to France and get my first victory so that was amazing."