A portable therapeutic seat exercise apparatus and method that provide a lightweight personal exerciser designed for a person to use to improve physical status, and for the exercise, alignment, and
stress reduction of a person's
trunk, spine,
abdomen,
pelvis, and thighs. It encourages and enhances
low back mobility in contrast to the static nature of regular sitting. It consists of a lightweight contoured seating surface supported by at least one arcuate hemispherical base that allows unrestricted motion in all directions, including twisting, tilting, and rocking. It can be placed on many seating surfaces including but not limited to sofas, dining chairs, school
desk chairs, office chairs, factory benches, and motor vehicle seats. Its use facilitates
low back muscular stabilization, conditioning, strengthening, coordination, and enhancement of proprioceptive senses.
Interchangeable parts and add-on attachments can be used in differing combination to vary height, depth, position, and arc of the seat-supporting base.