Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Hang the rings shoulder-width apart at waist height or slightly higher and take hold of them, leaning forward. Smoothly extend forward, aiming to straighten your body completely. When you reach the end point, try to hold for a split second, then smoothly come back. Return to the starting position and repeat.
If the exercise is too hard, start from your knees — in that case, lower the rings. If the exercise is too easy, either lower the rings or step back a little. Exhale as you start coming back — that is the hardest phase of the exercise.
Muscle Train is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.