Flexion and extension are primarily performed in which plane?

Flexion and extension movements are pivotal in the sagittal plane. The sagittal plane divides the body into left and right halves, and it is along this plane that movements such as bending (flexion) and straightening (extension) occur. For instance, when you perform a bicep curl, you are flexing at the elbow, while straightening your arm would represent extension. Understanding this concept is essential for aquatic fitness professionals as many exercises performed in the water will involve motions that primarily occur in the sagittal plane.

In contrast, the other planes do not accommodate these types of movements. The frontal plane primarily involves lateral movements, such as side lunges or jumping jacks. The transverse plane relates to rotational movements that occur around the vertical axis, such as twisting motions. The term 'coronal' is often used interchangeably with 'frontal', emphasizing the same types of movements. Thus, recognizing that flexion and extension specifically occur in the sagittal plane is crucial for effective program design and execution in fitness training contexts.