A lever arm and harness apply rotational bias during exercise to retrain asymmetrical pelvic and lumbar movement caused by leg length discrepancy.
A D-shaped tube with a flat outer wall simplifies decorative tape application on exercise hoops.
A core muscle therapy apparatus uses a rotating cage and seat assembly to apply gravity-based resistance for comprehensive training.
Dynamic arms with massage rollers knead the waist while damping devices absorb shocks to prevent falling hazards.
A hollow cylinder display unit encircles a rotator to create an immersive visual environment during indoor running.
An electronic hoop game system counts hip rotations via a transmitter and stationary receiver, enabling accurate spin tracking for competitive play.
A gravity-shifted movement device tilts via hip motion, using counterweights and damping elements to resolve stability trade-offs during virtual interaction.
A pivotally connected weight assembly modifies centrifugal force to maintain positioning stability and reduce waist discomfort during rotation.