# Leg Raises Lower-ab builder — the slow lowering is the exercise. - **Category:** Main circuit - **Type:** Anti-extension (dynamic) - **Targets:** Lower rectus abdominis, hip flexors, deep core - **Prescription:** 3 × 8–15 reps, slow negatives ## Setup **Lying:** flat on your back, legs straight, hands at your sides (or under the tailbone to start). **Hanging:** dead hang from a bar, shoulders packed. ## Execution 1. Press the lower back into the floor and brace. 2. Raise the legs to vertical without bending the knees more than slightly. 3. Lower *slowly* — 3 seconds or more — stopping before the lower back arches off the floor. ## Cues - Lower back flat against the floor on lying versions, always. - The negative is the rep: lower slower than you lift. - Exhale on the way down to keep the ribs from flaring. ## Common Mistakes - Lower back arching off the floor near the bottom. - Dropping the legs instead of lowering them. - Using momentum (swinging) on hanging versions. ## Progression Bent-knee lying raise → straight-leg lying raise → hanging knee raise → hanging straight-leg raise → toes-to-bar