Homeostasis examples include the human body temperature, the glucose level and the ability of the lymphatic system to maintain homeostasis. Homeostasis refers to the ability of an organism or environment to maintain stability in spite of changes.
Cam walkers are often used following foot or ankle surgery or after an injury. These devices help protect the injured area. They provide relative immobilization. They also allow for some limited walking (if this is indicated), and will serve to disperse the force of walking more evenly up the leg, due to the rigid sole and the rounded (rocker-bottom contour) of the sole.
Available with 3 or 4 wheels, Rollators do not involve the lift and drop that a standard step walker requires. This rolling function provides a smoother and more natural walking experience. The reason people choose the 4 wheel rolling walker over the 3 wheel is the seat and the wider base for extra stability. The reason to move up to a heavy duty rollator model from a standard size is the need to be able to hold the heavier size patient and the wider seat widths.