This hip flexor is often tight but also difficult to properly stretch. Owing to its attachments to the spine and thigh, hours of sitting and driving encourage over-activity of the psoas. This safe relaxation technique is a good place to start before getting into more intricate stretches. Do the relaxation for as long as it takes until the back easily flattens on the ground. Come see us at the UVA SPEED Clinic for more tips and drills.