Influence of a microprocessor-controlled prosthetic knee on responses to anteroposterior platform perturbations during walking: A randomized crossover trial

摘要

Falling is highly prevalent in individuals with a transfemoral amputation. Because of its detrimental consequences it is of clinical importance to study the influence of interventions on balance of individuals with a transfemoral amputation. An example of such an intervention is the use of microprocessor-controlled prosthetic knee (MPK). MPKs are able to change their damping properties. This is in contrast with non-microprocessor-controlled prosthetic knees (NMPKs) which have fixed damping properties. Because of the adaptable damping properties, MPKs claim to increase stance stability. Research has shown that MPKs have been associated with a reduced self-reported number of falls and increased balance confidence. [1] A biomechanical explanation for these findings, however, is not available.