Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Grip band overhand. Raise arms into a 'Y' shape, knuckles leading. Squeeze shoulder blades at the top, hold, then slowly lower.
Keep your shoulders relaxed and down, away from your ears, to prevent upper trap tension and promote proper shoulder blade engagement. Focus on squeezing your shoulder blades together at the peak of the movement to maximize back muscle activation and improve posture. As you raise your arms, consciously lead with your knuckles, ensuring your elbows are driving outwards to engage the lateral deltoids. Maintain a straight back throughout the exercise, avoiding rounding or arching, to protect your spine and ensure stability. Engage your core muscles to stabilize your torso and prevent unwanted movement, which will improve power transfer and reduce the risk of injury.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.