Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Engage your core and shift your weight to one foot. Raise your other foot a few inches off the ground while maintaining balance and core tension. Shift your weight to the ball of your foot on the floor, and engage that calf to raise your heel off the ground. Hold this position for a moment at the top of the movement. Maintain tension in your calf as you slowly allow your heel to return back to its starting position. Repeat this movement with the other leg.
Focus on slow, controlled movement. Keep your core engaged and avoid leaning to one side. Pause briefly at the top for full calf contraction.
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