Which of the following is considered spinal flexion?

Spinal flexion refers to the movement that decreases the angle between the vertebrae in the spine, effectively bending it forward. This action is commonly observed in everyday activities, such as bending down to pick something up or performing forward bends in Pilates. It involves the engagement of the abdominal muscles and the stretching of the back muscles.

Understanding this concept is crucial for Pilates instructors as it helps them guide clients through exercises that emphasize core strength and spinal health. While other movements like backward arching, side bending, and rotation are also essential in maintaining a balanced fitness regimen, they do not fall under the category of spinal flexion, as each involves different interactions between the vertebral segments and muscles.