Legs · Bodyweight

Figure 4 Sinal Rotation

How to do the figure 4 sinal rotation, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Figure 4 Sinal Rotation
Equipment
Bodyweight
Difficulty
Beginner
Logged as
time
Movement
Rotation
Mechanic
Isolation

How to do it

Lie on your back and cross one ankle over the opposite thigh to form a figure 4. Let both legs lower to one side and rotate your spine, feeling the stretch open through the hip and lower back, then hold and switch sides.

  1. 1An opening stretch through the outer hip and glute
  2. 2A gentle rotation through your lower back
  3. 3Both shoulders staying relaxed on the floor

Common mistakes

  • Forcing the knees down past comfortable range
  • Letting your shoulders peel up off the ground
  • Holding your breath through the rotation

Muscles worked

The figure 4 sinal rotation mainly works the glutes, with the lower back and obliques assisting.

  • GlutesPrimary
  • Lower BackSupport
  • ObliquesSupport
  • Lower AbsMinor
  • External RotatorsMinor
  • Hip FlexorsMinor

Kovo programs the figure 4 sinal rotation for you and tracks it every session.

We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.

More glutes exercises

See all glutes exercises →

Last reviewed June 2026.