Use of the Unstable Shoes in Lower Limb Lymphedema.

Lymphedema is an external manifestation of lymphatic system insufficiency and deranged lymph transport. It is defined as accumulation in the extracellular space of protein-rich fluid, due to a mechanical failure of the lymphatic system. Lymphedema directly affects the quality of life of the patient, not only in the physical aspect, but also in the psychological, sexual and social aspects. Muscle and joint pumps are important external mechanisms of lymphatic and venous fluid return improvement. The unstable shoes demands, especially during standing, increased muscle activity in the lower extremities. A clinical trial was carried out comparing both kinds of footwear, the objective being to evaluate possible differences in the evolution of lymphedema. Unstable shoes (MBT®) were compared with conventional sports shoes. During a clinical trial lasting eight weeks, we assessed quality of life, limb volume, and symptoms derived from lymphedema. The results suggested that the use of unstable shoes is recommendable for walking and for long periods of standing, since it decreases leg cramping and paraesthesia of affected limbs.