Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Sit on the sled, back against the backrest, feet shoulder-width apart on the platform. Only the balls of your feet should be on the platform, heels hanging off. Unlock the safety, extend legs fully (no knee lockout). Slowly lower heels to stretch calves. Press through the balls of your feet to raise heels, contracting your calves. Hold briefly, then slowly lower. Repeat.
Control the pace for maximum muscle engagement. Achieve full range of motion – lower heels fully, raise them high. Avoid bouncing; use slow, deliberate movements. Engage your core for stability. Adjust weight to maintain proper form. Exhale on the raise, inhale on the lower.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.