Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Extend arm and opposite leg parallel to the floor, hips square. Briefly hold. Pull elbow and knee inward, rounding your back slightly, engaging your abs to meet. Slowly return to the starting position. Switch sides.
To maintain balance and prevent lower back strain, focus on keeping your hips perfectly square throughout the entire exercise, avoiding any twisting or tilting. Actively brace your core muscles as if preparing for a punch to stabilize your spine and enhance control during the movement. Perform the exercise with slow, deliberate movements to fully engage your muscles and minimize the risk of injury, paying close attention to your form. Always maintain a neutral spine, avoiding excessive arching or rounding of your back, to protect your spinal health. Ensure your extended arm and leg remain parallel to the floor to properly target your oblique muscles and maintain a consistent level of difficulty. Resist the urge to rotate your torso; focus on keeping your hips and shoulders aligned to maximize oblique engagement and prevent strain.
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