What movement decreases joint angle in the sagittal plane?

The movement that decreases the joint angle in the sagittal plane is flexion. In anatomical terms, flexion refers to the bending of a joint, which brings the two segments of the limb closer together, resulting in a smaller angle between them. This movement is commonly observed when performing actions such as bending the elbow or the knee.

Flexion occurs in the sagittal plane, which divides the body into left and right halves, making it the correct and relevant concept. Understanding the principles of joint movements in this context is important for exercises that involve strength training, rehabilitation, and overall functional movement. The ability to identify and correctly label these movements is essential for developing effective exercise programs and ensuring safe practices in clinical exercise settings.