What is the primary characteristic of movements in the sagittal plane?

The primary characteristic of movements in the sagittal plane is that they occur around a medial-lateral axis and involve flexion and extension movements. This plane divides the body into left and right halves, allowing movements such as forward and backward bending.

In this context, the sagittal plane is important because it specifically addresses how these movements take place relative to the body's overall structure. For instance, when someone performs a bicep curl, they are primarily engaging in movement within the sagittal plane, where the elbow flexes and extends.

Understanding the orientation of the sagittal plane is crucial for trainers and individuals in the fitness profession, as it informs them about key movements and how to structure exercises effectively. This foundational knowledge about body planes is essential in ensuring proper form and injury prevention during training sessions.