Calisthenics Playbook: https://yellowdude.co/playbook https://amzn.to/4rDQ1ka Learn 5 game-changing exercises + the surprising move that's secretly building your abs. No more endless crunches - discover how to truly strengthen your core and protect your back. Get your hands on the best calisthenics gear, click this link: https://thegravgear.com/ SOCIAL MEDIA: 📸 Instagram: https://www.instagram.com/yellowdude.co 📱 TikTok: https://www.tiktok.com/@thegravgear TIMESTAMPS: 0:00 Intro 0:15 Five killer core exercises 1:05 Keep your core tight 1:59 How to engage your core 2:18 Why sit-ups suck 3:13 How pull-ups work your abs 4:11 Calisthenics Playbook