Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Start on all fours, hands under shoulders, knees under hips. Loop a resistance band around your right foot, anchoring it under your left knee. Engage your core, extend your right leg straight back (heel flexed), squeezing your glutes at full extension. Slowly return, maintaining band tension. Repeat on the other leg.
Squeeze glutes at the top. Keep your core engaged for stability. Control movements; avoid swinging. Adjust band resistance as needed. Exhale on extension, inhale on return.
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