@iron.mike.en: Fix your knee instability instantly 👌🏾🔥 If your knees feel unstable during leg extensions or hack squats, you’re probably skipping the one thing that fixes it immediately: training hamstrings first. Do your knees feel unstable during leg day? 🦵🏾👀 #GymTok #legtraining #gymadvice #hamstringworkout #fitnesstok