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 | 20-40 sec per side | 60-90 sec |
| Build muscle | 2-3 | 20-40 sec per side | 60-90 sec |
| General fitness | 2-3 | 20-40 sec per side | 45-60 sec |
Ranges reflect the same goal-based logic used by the workout plan tool. These are practical starting ranges rather than exact requirements; 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?
Generally, yes. The Side Plank is tagged as beginner-friendly in GetFitArchitect's exercise database, meaning it doesn't demand much prior strength, mobility, or technique. Start with a version you can control throughout, whether that means a lighter weight, an easier variation, or a shorter hold, progress gradually, and stop if something hurts beyond normal muscle effort.
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?
Add time a few seconds at a time until you can hold about 60 seconds with good form. Beyond that, longer holds add little, so switch to a harder variation (for example, a longer lever or a less stable position) or add load instead.
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