Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand with feet hip-width apart, near a wall for support if needed. Keep knees slightly bent, core engaged. Lift toes as high as possible, heels planted. Hold briefly, feeling the contraction. Slowly lower toes back down. Repeat.
Maintain a slight bend in knees. Maximize toe lift for muscle engagement. Use a wall for balance if needed. Perform slowly and with control.
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