Side plank pulses are a bodyweight core exercise that adds a slow up-and-down hip drive to a side plank, turning a static hold into reps for the obliques. Because the hip drops and lifts, the side of the trunk works through a range instead of holding one position, and the set ends on a clear rep count rather than a stopwatch. It suits lifters who find a plain side plank easy but are not ready for loaded side bends.
Muscles Targeted
- Primary: internal and external obliques, quadratus lumborum
- Secondary: gluteus medius, transverse abdominis
- Tertiary: deltoids, serratus anterior, adductors
Starting Position
Lie on one side with your forearm on the mat, elbow directly under the shoulder and forearm pointing forward. Stack your feet, or stagger them for a wider base, with the legs straight. Lift your hips until your body forms one straight line from ear to ankle. Rest your free hand on your top hip and brace your abs.
Execution Steps
- Set the plank with the elbow under the shoulder and the hips fully lifted.
- Lower the hips a few inches toward the mat under control, without touching down.
- Stop before the shoulder collapses, keeping the supporting arm loaded and the ribcage lifted.
- Drive the bottom hip up by pressing the forearm and the outside edge of your foot into the mat.
- Finish with the body in one line, squeezing the top glute at the top of the pulse.
- Repeat for the full rep count, then switch sides and match the number exactly.
Form Cues
- Press the floor away: pushing through the forearm keeps the shoulder packed instead of sagging into the joint.
- Lead with the hip, not the ribs: the pulse comes from the side of the waist, not from a shrug.
- Keep your shoulders and hips stacked so the top hip never rolls backward.
- Move at an even tempo, roughly one second down and one second up.
- Look straight ahead to keep the neck in line with the spine.
Common Mistakes
- Letting the hips drift back: rolling toward a front plank hides the obliques and makes the set easier than it looks.
- Bouncing off the floor: touching the hip down and rebounding removes the tension the exercise is built on.
- Sagging into the shoulder: hanging on the joint instead of pressing away loads the capsule and irritates the shoulder.
- Rushing the reps: a fast pulse is mostly momentum, and the side of the trunk barely works at either end of the range.
- Chasing high reps on one side only: an unmatched count builds the imbalance you are training to remove.
Variations
- Knee side plank pulse: dropping to the bottom knee shortens the lever for a first attempt.
- Straight-arm side plank pulse: supporting on the hand raises the demand on the shoulder.
- Feet-elevated side plank pulse: putting the feet on a bench increases the load on the obliques.
- Weighted side plank pulse: a plate on the top hip adds resistance without changing the pattern.
- Static side plank: the timed hold, for days when a rep count is not the goal.
Tips for Progression
- Build to 12 to 15 pulses per side before you make the exercise harder.
- Elevate the feet once floor sets no longer challenge the last two reps.
- Add a two-second hold at the top of each pulse.
- Add a light plate on the top hip only when the hips stay stacked for every rep.
Training Notes
Side plank pulses fit at the end of a session, inside a core block, for 3 sets of 10 to 15 reps per side with 30 to 45 seconds of rest. Two or three sessions a week is plenty. Pair them with a front plank or a dead bug so the trunk trains resistance to extension as well as side bending.