Muscle and Motion on Instagram: "Discover the Strength of Your Infraspinatus Muscle! 🌟 Ever wondered about the key player in your shoulder's external rotation? Meet the infraspinatus, the primary muscle responsible for this crucial movement. This robust, triangular muscle covers a large area of your scapula's dorsal surface and stands out as an integral part of the rotator cuff muscles. 💪 𝗪𝗵𝘆 𝗳𝗼𝗰𝘂𝘀 𝗼𝗻 𝘁𝗵𝗲 𝗶𝗻𝗳𝗿𝗮𝘀𝗽𝗶𝗻𝗮𝘁𝘂𝘀? Strengthening this muscle is essential for both