Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Secure a resistance band around your knee, anchoring it at knee height. Stand facing away from the anchor, band taut. Start with a slight knee bend, foot flat. Extend your knee fully against the band's resistance, engaging your quads. Hold briefly, contracting your quads. Slowly return to the starting position, maintaining tension. Repeat.
Squeeze your quads during extension. Maintain an upright posture and engage your core. Keep your foot flat throughout the movement. Ensure proper knee tracking. Start with lighter resistance and control the movement.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.