Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Brace your core, exhale, and curl your torso up until your shoulders align over your hips. Pause briefly to engage your abs, then inhale as you slowly lower your torso, keeping your back flat.
Focus on curling your spine using your abdominal muscles to initiate the movement, rather than relying on momentum. Keep your chin tucked towards your chest throughout the exercise to prevent neck strain and maintain a neutral spine. Avoid pulling on your neck by ensuring your upper back muscles are engaged and supporting the movement. Control the descent by resisting gravity, feeling your abdominal muscles working to lower you slowly and deliberately. Engage your core fully by drawing your navel towards your spine to stabilize your body and maximize abdominal muscle activation.
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