Josh Amberger, one of the world's best triathletes, sits down to discuss why taking a proper offseason matters as much as the racing itself—especially when you're in your 30s and 40s. We explore how swimming technique is fundamentally different from other endurance sports, why most age-groupers are wasting their pool time, and how modern nutrition science has completely flipped the script on what athletes should actually be eating.
Key Takeaways
- Swimming is overwhelmingly technical—you can't afford to develop bad habits like an adult, because unlike cycling or running, there are dozens of simultaneous movements to coordinate (hand entry, breathing, timing). Overthinking is the biggest limiting factor for adult learners.
- Taking a genuine offseason—including time away from your phone, family time, and even putting on weight—is crucial for career longevity. The young pros doing altitude camps year-round might be setting personal records now, but the long-term cost on mental health and career sustainability remains unknown.
- Modern fueling protocols have shifted dramatically: athletes are now consuming 120+ grams of carbs per hour compared to 70 grams a decade ago, and there's zero shame in eating during training. The younger generation has this advantage built in from day one, removing the cultural stigma older athletes had to fight.
- Ironman-specific fueling is different from road cycling because you can't rely on team support or aid stations—you must front-load nutrition on the bike leg and adapt to inconsistent availability during the run. Sweat composition testing (like sodium patches) reveals individual variation that static lab tests miss.
- Aerodynamics has been the biggest rapid shift in triathlon equipment over the past 5 years, with integrated fairings and custom extensions pushing bike speeds down to 4-hour paces for 180km—what used to be half-iron pace.
- Having a partner who shares your sport (like training with your spouse) creates accountability and forces you to confront advice you might otherwise dismiss, though the 'husband-wife' dynamic can make coaching feedback harder to accept.
Expert Quotes
"Swimming is so technical that you can't afford to develop any bad habit. By the time I was 11 or 12 I'm in the pool literally 10, 11 times a week. Sometimes I feel like I didn't have a choice."
"There's so much going on in the swimming stroke—it's not like turning a pedal on the bike or going for a run. There's hand entry, breathing, there's a lot of timing aspects to swimming that is difficult."
"I'm not ashamed to take time off. Being 34 now, I'm looking at the last five years of my career potentially. What's going to really pay for me in the back end of my career is being able to really differentiate when we're in season and when we're offseason."