How to Do Knee Across The Body
Start and end of one clean rep of Knee Across The Body.
Quick facts
| Primary muscle | Glutes |
|---|---|
| Secondary muscles | Core |
| Equipment | Bodyweight |
| Category | Stretching |
How to perform Knee Across The Body
- Lie down on the floor with your right leg straight. Bend your left leg and lower it across your body, holding the knee down toward the floor with your right hand. (The knee doesn't need to touch the floor if you're tight.)
- Place your left arm comfortably beside you and turn your head to the left. Imagine you have a weight tied to your tailbone. let your tailbone fall back toward the floor as your chest reaches in the opposite direction to stretch your lower back. Switch sides.
Muscles worked
- Glutes (primary): extends and stabilises the hip — the engine behind hinges, squats and sprints.
- Core (secondary): braces the trunk and resists twisting to protect the spine.
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 Knee Across The Body work?
Knee Across The Body mainly works the glutes, with the core helping as secondary movers.
What equipment do I need for Knee Across The Body?
None — Knee Across The Body is a bodyweight movement, so you only need your bodyweight and a little space.
How many sets and reps should I do for Knee Across The Body?
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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