The Snap Dome Weight Bearing Indicator (WBI) is a newly patented biomedical device, which is intended to provide a simple, effective and inexpensive device for patients with lower extremity injuries to self-monitor their weight bearing status as required by their physical rehabilitation program. The Snap Dome WBI was co-invented by the PI, Daniel Walczyk, PhD in 1998 and patented by Rensselaer Polytechnic Institute in 2002. Teak Industries, Inc. (TKI), a biomedical equipment firm , is currently negotiating an exclusive patent license with Rensselaer and plans to further develop the device, supervise clinical trials, and eventually commercialize the device. Partial Weight bearing is prescribed to patients with lower limb injuries, treatments, surgeries and other maladies as part of a comprehensive medical treatment. Weight bearing is known to increase bone growth, reduce total rehabilitation and/or hospitalization time or other follow-up treatments. Current methods and commercially available medical devices are either ineffective or too expensive for widespread use. The Snap Dome WBI is a purely mechanical device that utilizes the reversible buckling phenomena of a "snap dome" to provide a tactile "click" on the patients foot bottom and an audible "snap" when the prescribed weight has been exceeded. This type of WBI is inherently less costly, simpler, more compact, and more reliable than current devices