Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Lie face down, forearms on the ground, elbows under shoulders. Engage your core to lift your body, forming a straight line from head to heels. Feet together, toes down. Maintain neck and spine alignment. Breathe steadily.
Align elbows under shoulders to prevent strain. Engage your core by drawing your belly button towards your spine. Maintain a straight body line; avoid sagging or arching. Breathe consistently. Start with shorter holds and increase duration as strength improves. To increase difficulty, lift one arm or leg.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.