The importance of swing-phase initial conditions in stiff-knee gait

A case study of gait compensations for hip muscle weakness in idiopathic inflammatory myopathy

“…However, the technique also is appropriate for the study of pathological gait because subjects with impaired motor control or muscle strength often must find alternative strategies to control limb position during ambulation if they are to successfully minimize disability. Clinical research using induced acceleration analysis techniques have studied the causes of stiff-knee gait in patients with upper motor neuron impairments such as stroke (Riley & Kerrigan 1999) or cerebral palsy (Goldberg et al 2003) and identified compensatory gait strategies to achieve knee stability in stance phase used by patients with knee extensor weakness (Siegel et al 2006). However, the technique should be of benefit in analyzing an even wider variety of patients with gait limitations including muscle weakness secondary to myopathy, the focus of the present study.…”

Biomechanical and Clinical Correlates of Swing-Phase Knee Flexion in Individuals With Spastic Cerebral Palsy Who Walk With Flexed-Knee Gait

“…However, the timing of PKF during swing remained delayed. 20 In the current study of patients with spastic CP, reduced knee flexion velocity at toe-off correlated to delayed timing of PKF during swing; reduced peak knee flexion velocity in early swing phase correlated to a reduced magnitude of PKF during swing.…”

Sensor Module for Detecting Postural Change and Falls

“…Goldberg et al reviewed that knee flexion velocity at toe-off plays in the stiff-knee gait associated with cerebral palsy [7]. Mansfield et al studied the potential of accelerometry to detect gait events [8].…”