What type of movement does the spine perform during flexion?

During flexion, the spine performs the action of bending forward. This movement involves decreasing the angle between the torso and the thighs, which is commonly observed when a person reaches down to touch their toes or performs a sit-up. Flexion primarily occurs in the sagittal plane and is crucial for activities like picking objects off the ground or performing exercises such as crunches. Understanding spinal flexion is important for trainers to ensure clients execute movements safely and effectively, preventing injuries that can arise from improper technique during forward-bending actions.