Shadia Castillo on Instagram: "Full hamstring workout ! My favorite muscle to train - it’s the secret to fuller legs ! The key is to focus on stretch and control 🔥 : ‼️ Rep range: 15–20 slow, controlled // 2–3 warm-ups , 3–4 working sets each. : • Vertical leg press : Wide stance ,toes out to hit the outer hammies. • RDLs : Slight knee bend, hips back, chest tall. Feel the stretch • Standing Single-Leg Hamstring Curls: Isolate the weak side. Squeeze like you’re trying to cramp (in a good