an intelligent motorized resistance machine engineered for targeted back development. Using an advanced motor to deliver precise, smooth, and fully controllable resistance, it simulates the classic high-pulldown movement to effectively strengthen the latissimus dorsi, teres major, rhomboids, and other upper-back muscles, while also engaging the biceps and core muscles. This makes it an excellent choice for building a V-shaped physique, improving posture, and enhancing upper-body pulling strength—particularly suitable for fitness enthusiasts and rehabilitation users who demand the highest levels of safety and accuracy