Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
With arms bent 90 degrees, place forearms on a doorframe. Step one foot forward and gently lean forward, feeling a stretch in your chest and front shoulders. Hold, breathing deeply, then step back to release.
To prevent neck and shoulder strain, consciously relax your shoulders and draw them down away from your ears throughout the stretch, focusing on opening your chest. Maintain a straight back and engage your core to prevent arching or rounding, ensuring the stretch is felt primarily in your chest and front shoulders. Deep, controlled breathing helps to relax the muscles and deepen the stretch, so inhale deeply and exhale slowly while holding the position. Carefully control the depth of your lean to avoid overstretching or discomfort, stopping when you feel a moderate stretch without pain.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.