# Seated Alternate In Out Leg Raise Over Bench

- Canonical: https://fitwill.app/exercise/7803/seated-alternate-in-out-leg-raise-over-bench/
- Media ID: 7803
- Primary muscle: Abs
- Body part: Core
- Equipment: Flat Bench
- Video: https://fitwill.app/videos/7803/seated-alternate-in-out-leg-raise-over-bench.mp4

## Description

Seated Alternate In Out Leg Raise Over Bench is a body weight core drill performed on the floor alongside a flat bench. You sit beside the bench, lean your torso back and support yourself on your hands, then lift your legs and alternately pass one leg up and over the bench while the other travels down and back underneath or beside it. The bench acts as a physical target and obstacle, which forces your legs to clear a set height on every rep and keeps the range honest from side to side.

The main work comes from the lower abs and hip flexors, which lift and control the legs through the entire arc. Because the legs move in opposite directions rather than together, your trunk has to resist rotation and side-bending the whole time, so the obliques and deep core work hard as stabilizers. The adductors on the inner thighs also contribute as the legs cross toward and away from the bench midline.

Setup matters more here than in most floor ab exercises. Your distance from the bench determines the path: too close and your knee jams into the pad as you try to clear it, too far and you have to overreach, which pulls your lower back into an arch. Position yourself so the bench sits roughly at the length of your lower leg from your hips, with the pad at about shin or ankle height relative to your raised leg.

To execute well, keep your hands planted firmly by your hips, chest lifted, and shoulders packed down away from your ears. Move one leg over the bench in a smooth arc while the other swings in the opposite direction beneath it, then reverse the pattern without letting either foot touch the floor. The tempo should be controlled rather than rushed, since momentum is what usually replaces abdominal effort in this movement.

This drill suits people who already handle basic lying leg raises comfortably and want a version with a coordination and anti-rotation challenge built in. It fits well at the end of a core session or as a warm-up activation for the hip flexors before lower body training. If clearing the bench is too difficult at first, use a lower surface or let the working leg bend slightly as it passes over.

## Instructions

1. Place a flat bench on the floor beside your hip, with the pad roughly at shin height and about a lower-leg length away from where you will sit.
2. Sit on the floor alongside the bench and lean your torso back, planting both palms flat on the floor under or slightly behind your shoulders with fingers pointing toward the bench.
3. Engage your abs and lift both legs off the floor so they are free to move, knees softly bent or legs nearly straight depending on your mobility.
4. Brace your trunk as if bracing for a light push, and pull your shoulders down away from your ears so you are not shrugging into your neck.
5. Sweep one leg up and over the bench in a smooth arc while the other leg travels down and back in the opposite direction beneath it.
6. At the end of the arc, briefly hold the position with the top leg clear of the pad and both feet off the floor.
7. Reverse the pattern with control, bringing the raised leg back over and sending the other leg out, so the legs trade positions in one continuous in-out rhythm.
8. Exhale as the legs sweep through the middle of the arc and inhale as they settle at the end range.
9. Complete your reps on that rhythm, then lower both legs to the floor and shake out your hips and shoulders before the next set.

## Tips & Tricks

- If your knee bumps the bench pad on every pass, you are sitting too close; shift your hips back a few inches so the leg can clear at the ankle instead of being blocked at the knee.
- A common mistake is letting the pelvis roll side to side as the legs trade positions. Press both palms evenly into the floor and think about keeping your belt line level throughout.
- Avoid raising your shoulders toward your ears as fatigue builds. If your neck starts doing the supporting, rest briefly rather than grinding out extra reps.
- Keep the sweep at a two-count per side. When the legs start whipping, the hip flexors take over and the lower abs stop doing the bracing work.
- Do not let the swinging foot tap the floor between reps. Keeping both legs airborne the entire set is what makes the lower abs stay under continuous tension.
- If your lower back arches and lifts off the floor as the legs drop, reduce the range by bending the knees slightly or shortening the down-swing rather than pushing through the arch.
- Start with fewer reps than feels necessary. This drill taxes the obliques and hip flexors in a coordinated pattern, and form degrades quickly once coordination slips.
- Point your toes gently and keep the ankles relaxed so the sweep stays smooth; stiff, flexed feet tend to clip the bench edge.

## Frequently Asked Questions

### What muscles does Seated Alternate In Out Leg Raise Over Bench work?

The primary movers are the lower abs and hip flexors, which lift and control the legs as they pass over and under the bench. The obliques and deep core stabilize the trunk against rotation, and the inner thighs assist as the legs cross through the middle of the arc.

### Why is the bench used instead of just doing leg raises on the floor?

The bench sets a fixed height the leg must clear on every rep, so the range stays consistent and you get immediate feedback if a rep falls short. It also turns a simple leg raise into a coordination drill because the legs travel in opposite directions.

### Is Seated Alternate In Out Leg Raise Over Bench suitable for beginners?

It is better as a step after basic lying leg raises feel solid, since supporting yourself on your hands while coordinating both legs is demanding. Beginners can make it easier by bending the knees more or using a lower surface to clear.

### How far should I sit from the bench?

A good starting point is roughly one lower-leg length between your hips and the bench edge, with the pad around shin height. Adjust from there: blocked knees mean move back, and overreaching or lower-back arch means move slightly closer.

### My shoulders and wrists fatigue before my abs. What should I do?

That usually means the set has run long or your weight is drifting back onto your hands. Keep more of your weight toward your sit bones, shorten your sets, and build gradual tolerance for the supported position.

### Should the legs stay straight the whole time?

Nearly straight legs make the drill harder because of the longer lever, but slightly bent knees are fine and often produce better control. What matters most is clearing the bench without swinging or letting the feet touch down.

### What can I use if I do not have a flat bench?

Any stable, padded surface at roughly knee height works, such as a sturdy chair or a low plyometric box. Just make sure it cannot slide when your leg passes over it.

### Is it a problem if my feet touch the floor between reps?

Touching down turns it into a series of single raises and removes the continuous tension that makes the movement effective. If you cannot keep both feet off the floor, reduce the range or bend the knees until you can.

### How many reps and sets should I do?

Start with two to three sets of eight to ten passes per leg, focusing on smooth clears with a level pelvis. Progress by adding reps or slowing the tempo rather than adding external load.