Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Setup in an upright position with your back against the pad and your spine neutral. Exhale and push the legs apart as you open the pads. Once your hips are fully externally rotated, slowly return to the starting position. Repeat for the desired number of repetitions.
Limit movement range to ~45° to avoid strain. Maintain upright posture for proper activation. Control the motion, don’t use momentum. Keep back neutral to stabilize pelvis.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.