Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Targets: Rectus abdominis (upper abs), obliques, hip flexors (minor). Bodyweight exercise. Beginner to intermediate difficulty.
Place fingertips lightly behind your ears or cross your arms over your chest Control the movement with a slow, deliberate pace Engage your abs to lift your shoulder blades off the floor Maintain a comfortable space between your chin and chest Press your feet firmly into the floor Exhale during the upward crunch, inhale during the descent
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