You don't need a perfect warmup routine

How many recovery breaths do i need?

Nobody cares how long you hold your breath

Why Max Attempts Don’t Teach You Much

Seven questions for Gert and James! 🌊🏖️ #hellofrikandel #ketnetopvrtmax

O2 vs CO2: how do i know which table i need right now?

NO FINS: The Secret to Maximum Propulsion

What's the biggest mistake beginners make when training breath holds at home?

I get dizzy during or after a breath-hold,what does it mean?

You already knew how to hold your breath

What is a CO2 table and why does it matter more than a max hold?

You don't need oxygen, you need calm

Gert was jarig: dubbel feest met Sarah - De Verhulstjes

Gert-Johan Coetzee Reflections — Autumn Winter 2027 Collection Live