Sander Berk
sanderberk.bsky.social
Sander Berk
@sanderberk.bsky.social
Father of two | OLY Beijing 2008 | MSc Human movement science VU Amsterdam | Lifelong endurance sports enthousiast
First time the body took a hit after a long run. Not surprised, as nausea made it impossible to eat or drink in the last 15k
March 17, 2025 at 6:32 AM
Sometimes, when I feel like it, one of those easy runs turns into a steady (‘zone 2’) run. Maybe once every 14 days, I don’t plan those.

Besides running, I swim 2-3x per week for 1 hour and do a 8’ bodyweight circuit every day.

That’s it. Boring, right?
January 26, 2025 at 3:27 PM
Yes, I know I only post details after ‘extreme’ workouts. But that’s because the rest is extremely boring.
- I run 4-5x per week.
- Every 14 days I do one LONG run (like today) and one HARD run (5k race or 10-15x60” hill).
- All other runs are 30-60min easy runs, some with strides.
January 26, 2025 at 3:26 PM
Energy intake between laps only. 900ml water, 1150ml Maurten360, 2 gels and 1 bar.

Lost 1,2kg including 1,8kg total from bathroom breaks, so I guess I drank enough to counter sweat losses today. Not too difficult, as temperature was low (3-7 Celsius).
January 26, 2025 at 3:25 PM