Side Plank

Builds the lateral core and glute medius together — the anti-side-bend strength that protects the lower back.

DIFFICULTY
Beginner
EQUIPMENT
Mat · Bodyweight
PRIMARY MUSCLES
Obliques · Quadratus Lumborum
ALSO WORKS
Gluteus Medius · Deltoids
HOW TO DO IT
  1. 01Lie on your side with the elbow under the shoulder, knees or feet stacked.
  2. 02Lift the hips until your body forms a straight line from ear to ankle.
  3. 03Squeeze the glutes and brace the ribs down.
  4. 04Hold 20–45 seconds, then swap sides — compare how they feel.
COACHING CUES
  1. 01Push the floor away with the bottom shoulder.
  2. 02Hips high and forward, not sagging back.
  3. 03If one side is markedly worse, that's information — train it first.
COMMON MISTAKES
  1. 01Letting the hips sag towards the floor.
  2. 02Rolling forwards out of true side-on position.
  3. 03Holding the breath through the set.

Note: Reference material, not a prescription. Load, volume and whether this movement suits you at all depends on your assessment — if something hurts, stop and get it looked at.

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