Sitting shuts down your backside muscles – your glutes, hamstrings, and even your spinal support. That’s why your back feels stiff and weak after hours at a desk. 👉 This one move wakes up your entire posterior chain in seconds. It strengthens your glutes, hamstrings, back and core all at once, while opening the front of your hips. Why it works: ✅ Reverses the flexed sitting posture ✅ Reactivates glutes & hamstrings that go “offline” from sitting ✅ Builds core & back strength for better posture