Uploaded April 2025 | Updated September 2026, 2 weeks ago
This is my instant endurance increaser, and no, I’m not selling you anything. This is something I’ve done for years, especially before a fight.
I’m showing you exactly how I stretch my intercostal muscles—the muscles between your ribs, to help improve breathing, oxygen intake, and endurance. If you’re into MMA, UFC, or just want to boost your stamina, this is a game-changer.
I used this stretch before my fights, and I still use it today. It helps with recovery, lung capacity, and overall performance—without any gear, pills, or fluff.
Try it out. You’ll feel the difference.
– Bas Rutten 👊
Learn about my intercostal muscle training device, the O2Trainer, here: http://O2Trainer.com.
This is my instant endurance increaser, and no, I’m not selling you anything. This is something I’ve done for years, especially before a fight.
I’m showing you exactly how I stretch my intercostal muscles—the muscles between your ribs, to help improve breathing, oxygen intake, and endurance. If you’re into MMA, UFC, or just want to boost your stamina, this is a game-changer.
I used this stretch before my fights, and I still use it today. It helps with recovery, lung capacity, and overall performance—without any gear, pills, or fluff.
Try it out. You’ll feel the difference.
– Bas Rutten 👊
Learn about my intercostal muscle training device, the O2Trainer, here: http://O2Trainer.com.
