Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Start lying on your side, legs extended and stacked. Elbow directly under your shoulder for support. Engage your core, lift hips to form a straight line from head to heels (side plank). Lift your top leg as high as possible, maintaining form. Briefly hold, then slowly lower. Avoid hip or shoulder rotation; keep your core stable.
Elbow directly under shoulder to prevent strain. Maintain a straight line from head to heels. Engage your core for stability. Use controlled movements. Breathe steadily. Start with shorter holds if new to the exercise.
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