Questions & Answers
Q: What are floor reaction forces?
A: The reaction from the floor as an object, such as a ball or a foot, strikes it.
Q: Are the floor reaction forces useful?
A: Normal walking is not possible with an orthosis or a prosthesis if the designer does not carefully incorporate and harness the floor reaction forces.
Q: Will I function well in a device that does not correct structural deviations such as a limb deformity?
A: No; In fact, not correcting a deformity may result in further deformity.
Q: Is proper alignment or balancing different for someone wearing a prosthesis (artificial limb) or an orthosis (brace)?
A: No; Balancing the body's weight present the same mechanical problem to the orthotist or prosthetist.
Q: Do flexible braces prevent unwanted foot and ankle rotation that often lead to further deformity?
A: No; Flexible braces will flex on weight bearing; this allows the limb to progress into the undesired or malaligned position
Q: What are the two most important factors for the successful functional use of a lower limb prosthesis in achieving a normal gait?
A: Socket fit and alignment.
Q: Are orthotic and prosthetic mechanical applications different for children than for adults?
A: No; The mass is different but the corrective applications are the same.
