Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand tall, feet hip-width apart, knees soft, weight on midfoot. Arms bent at 90 degrees. Step right foot out, tapping the ball of your foot and driving through it. Keep the leading knee bent to absorb impact. Rotate torso and head to the right, following the foot placement. Return to center, then repeat on the left side, alternating sides rhythmically. Breathe steadily, maintaining a light, dancing footwork.
Maintain a gentle bend in your front knee. Step lightly, engaging your foot muscles. Focus your gaze in the direction of your twist. Find a sustainable, fluid tempo.
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