Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Adjust the machine to align with your torso. Brace your core, exhale, and crunch forward by flexing your spine. Squeeze your abs at the peak, then inhale as you slowly return to the starting position, maintaining tension.
Begin the crunch by engaging your core muscles, drawing your belly button towards your spine to create a stable foundation. Keep your lower back pressed against the pad throughout the exercise to prevent arching and ensure proper spinal alignment. At the top of the crunch, actively squeeze your abdominal muscles to maximize contraction and feel the engagement. Control the return movement by resisting the weight stack, preventing a rapid descent and maximizing time under tension for optimal muscle development.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.