Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Hold a back lever, then release one ring and let the body settle under the single supporting arm while keeping the body horizontal and facing down. Hold briefly, then take the second ring again.
Only attempt with a solid full back lever on both arms. Expect strong rotation — brace the core hard. Keep hold times very short.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.