Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Lie on your back, knees bent, feet flat, hip-width apart. Hands by your ears, palms flat, fingers pointing toward shoulders, elbows up. Exhale, press into hands and feet to lift hips, lightly resting the crown of your head on the mat to check alignment. Straighten arms, engage glutes and thighs, and arch your chest. Hold for 3-8 breaths. To release, tuck your chin, bend elbows, and lower slowly.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.