Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Secure a resistance band at shoulder height. Stand sideways to the anchor, feet shoulder-width apart. Hold the band with both hands, arms extended. Engage your core, slightly bend knees. Rotate your torso away from the anchor, keeping arms straight. Return slowly to the start. Repeat, alternating sides.
Engage your core to protect your lower back. Rotate through your torso, not just your arms. Maintain a controlled pace. Ensure the band is taut at the start. Keep your spine neutral. Exhale on the twist, inhale on the return.
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