4 Ways To Test Stability with Kettlebells 💪 @mavericksfieldhouse on IG 👑 Here’s number four—and it’s the one you’ve probably never trained. 'The Copenhagen plank' 🤔 💭 ❓️ Here are the other 3 isometric holds every lifter needs: 1. 1-Arm Overhead Opposite Knee Raised Builds cross-body coordination and shoulder stability under tension. Translation: If your upper body disconnects from your lower body—you’re bleeding strength. 2. 1-Arm Single-Leg RDL Hold Develops bulletproof balance and glute-lo