Lateral Side Plank

Lateral Side Plank Exercise Description

The Lateral Side Plank (often called the side plank or side bridge) is an isometric anti-lateral‑flexion exercise that builds trunk and pelvic stability. It primarily targets the external and internal obliques, transverse abdominis, and quadratus lumborum, with important support from the gluteus medius/minimus to keep the pelvis level. The shoulder complex of the support arm (serratus anterior and rotator cuff) also contributes by stabilizing the scapula. Performed correctly, your body forms a straight line from head to feet while you resist side‑bending and rotation. The movement emphasizes neutral spine, stacked shoulders and hips, and even tension through the forearm and edge of the lower foot. It can be performed on the forearm or as a straight‑arm variation; both demand controlled breathing and continuous bracing.

Muscle Groups: Abs, Core, Obliques, Waist
Target Muscles: External Obliques, Quadratus Lumborum
Assisting Muscles: Internal Obliques, Transversus Abdominis
Stabilizing Muscles: Gluteus Medius, Gluteus Minimus, Infraspinatus, Serratus Anterior, Subscapularis
Body Area: Upper Body
Body Parts: Back, Core, Lower Back, Torso
Body Surface: Side
Body Symmetry: Unilateral
Equipment: Bodyweight
Exercise Patterns: Other
Exercise Type: Strength
Functional Grouping: Spine Stabilizers, Trunk Lateral Flexors, Trunk Rotators
Joint Involvement: Other
Muscle Location: Side Abs, Side Lower Back
Movement Direction: Other
Muscle Position: Lateral
Gender: Female

How To Do The Lateral Side Plank Exercise

‘- Lie on your side with legs straight, feet stacked or slightly staggered.
– Place your bottom elbow directly under your shoulder; forearm perpendicular to your body, hand relaxed.
– Set a neutral spine and neck; look straight ahead, chin slightly tucked.
– Gently brace your midsection and squeeze the glutes to level the pelvis.
– Press the forearm and the edge of the bottom foot into the floor and lift your hips until your body forms a straight line from head to heels.
– Stack shoulders and hips; avoid rolling forward or backward.
– Keep the supporting shoulder “active” by pressing the floor away to prevent sinking.
– Reach the top arm to the ceiling or rest it on your hip without twisting.
– Breathe steadily; avoid breath‑holding. Maintain alignment throughout.
– Lower the hips with control to finish, then repeat on the other side.
– For the straight‑arm variation, place your hand under the shoulder and keep a soft (not hyperextended) elbow.

Lateral Side Plank Tips

‘- Place your bottom elbow directly under your shoulder with the forearm perpendicular to your body.
– Set a neutral spine and neck by looking straight ahead with your chin slightly tucked.
– Gently brace your midsection and squeeze your glutes to help keep the pelvis level.
– Press the forearm and edge of the bottom foot into the floor as you lift to create a straight line from head to heels.
– Keep shoulders and hips stacked and avoid rolling forward or backward.
– Maintain even tension through the forearm and edge of the lower foot for stability.
– Keep the supporting shoulder “active” by pressing the floor away so you don’t sink into the joint.
– Reach the top arm to the ceiling or rest it on your hip without twisting your torso.
– Breathe steadily and avoid breath-holding while you maintain alignment and bracing.
– For the straight-arm variation, place your hand under your shoulder and keep a soft (not hyperextended) elbow.

Lateral Side Plank Beginner Introduction

The Lateral Side Plank (often called the side plank or side bridge) is a bodyweight hold that challenges the midsection to resist sagging or bending to the side. The body is supported on one arm and the side of the lower foot, creating a long, aligned shape from head to heels while the torso stays steady. It can be set up on the forearm or with a straight arm under the shoulder, and in both versions the position is maintained rather than moved through repetitions.

This exercise places a strong demand on the side abs, deep abs, and side of the lower back, with important help from the glutes to steady the hips. The supporting shoulder and upper back also play a key role by anchoring the upper body and keeping the chest stable. Breathing remains calm and controlled throughout the hold, so the core can stay engaged without tensing up the neck or face. The overall emphasis is on posture, balance between the right and left sides, and a solid connection from the shoulder through the trunk down to the feet.