Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Sit with upper back supported on a bench. Bend one knee, foot flat; extend the other leg. Hold a dumbbell on the bent leg's hip. Engage core, drive through the bent leg's heel to lift hips. Form a straight line from shoulders to knee. Squeeze glutes, hold, then lower. Repeat, alternating legs.
Ensure a firm upper back support. Engage your core. Drive through your heel for glute activation. Control the descent. Maintain a straight line from shoulders to knee. Start with a lighter weight.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.