How to Do Piriformis-SMR
Start and end of one clean rep of Piriformis-SMR.
Quick facts
| Primary muscle | Glutes |
|---|---|
| Secondary muscles | — |
| Equipment | Bodyweight |
| Category | Stretching |
How to perform Piriformis-SMR
- Sit with your buttocks on top of a foam roll. Bend your knees, and then cross one leg so that the ankle is over the knee. This will be your starting position.
- Shift your weight to the side of the crossed leg, rolling over the buttocks until you feel tension in your upper glute. You may assist the stretch by using one hand to pull the bent knee towards your chest. Hold this position for 10-30 seconds, and then switch sides.
Muscles worked
- Glutes (primary): extends and stabilises the hip — the engine behind hinges, squats and sprints.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
As a mobility drill, hold each position for 20–40 seconds (or move slowly for reps) rather than training it to a heavy load.
Form tips
- Finish each rep by squeezing the glutes and standing fully tall, without over-arching the back.
- Own the largest range you can control with clean form before you chase extra reps.
- Ease in until you feel mild tension, never pain, and breathe out as you sink a little deeper.
- Control the lowering phase — a 2–3 second descent builds more than dropping the weight.
Common mistakes
- Turning a hip hinge into a squat and losing the stretch on the glutes.
- Cutting the range short to squeeze out extra reps instead of owning each full one.
- Bouncing into the stretch instead of holding it steadily.
Frequently asked questions
What muscles does Piriformis-SMR work?
Piriformis-SMR is a focused movement that primarily works the glutes.
What equipment do I need for Piriformis-SMR?
None — Piriformis-SMR is a bodyweight movement, so you only need your bodyweight and a little space.
How many sets and reps should I do for Piriformis-SMR?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. As a mobility drill, hold each position for 20–40 seconds (or move slowly for reps) rather than training it to a heavy load.
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