Side Plank
An isometric core hold performed on one side that builds oblique and lateral hip stability.
Equipment: bodyweight
How to do it
- 1Lie on your side with your elbow directly under your shoulder and your legs stacked on top of each other.
- 2Brace your core and lift your hips off the floor until your body forms a straight line from head to feet.
- 3Keep your hips stacked vertically and your head in line with your spine, holding the position for the desired time.
- 4Lower back down with control, then repeat on the other side.
Common mistakes
- Letting the hips sag toward the floor instead of holding a straight line, which turns the hold into a passive stretch.
- Letting the elbow drift out from under the shoulder, placing unnecessary stress on the shoulder joint.
Sets & reps by goal
| Goal | Sets | Reps | Rest |
|---|---|---|---|
| Strength | 2-3 | 8-12 | 60-90 sec |
| Build muscle | 2-3 | 10-15 | 45-60 sec |
| General fitness | 2-3 | 12-15 | 45-60 sec |
Ranges reflect the same goal-based logic used by the workout plan tool. Actual set count in a generated plan also depends on how often this muscle group appears elsewhere in your week.
Frequently asked questions
Is the Side Plank safe for beginners?
Yes. The Side Plank is tagged as beginner-friendly in GetFitArchitect's exercise database, meaning it doesn't demand much prior strength or mobility. Start with a weight or resistance level where you can complete every rep with good form, and only add load once that feels controlled.
What muscles does the Side Plank work?
The primary mover is your core. As a core movement, it also involves your hip flexors and lower-back stabilizers.
How do I make the Side Plank harder as I get stronger?
Since this is a bodyweight movement, progress by adding reps or sets before anything else, slowing the tempo down (especially the lowering portion), or shortening rest between sets. Once bodyweight reps stop feeling challenging, that's usually the sign to add external load or move to a more advanced variation.
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