Dynamic stability during split-belt walking and the relationship with step length symmetry.

Introduction: Walking instability is a contributor to falls and other undesired changes in walking performance. We investigated the effect of split-belt treadmill based perturbations on dynamic stability. Furthermore, we examined the relationships for dynamic stability and symmetry during unperturbed and perturbed walking.

Locomotor adaptability in persons with unilateral transtibial amputation.

Background: Locomotor adaptation enables walkers to modify strategies when faced with challenging walking conditions. While a variety of neurological injuries can impair locomotor adaptability, the effect of a lower extremity amputation on adaptability is poorly understood.

Objective: Determine if locomotor adaptability is impaired in persons with unilateral transtibial amputation (TTA).