Sprung arms in a massage apparatus maintain continuous therapeutic pressure, eliminating reliance on user physical strength.
Axially spaced projection bands on a cylindrical roller provide varying resistance to tangential and axial loads for deeper myofascial release.
Eccentric rotation members with sliding contact allow swing arms to dynamically adjust pivot angles, resolving uneven massaging caused by fixed device geometry.
Motor-driven rotational connectors propel a flexible massage element along body limbs, eliminating manual repositioning and accommodating varying diameters.