Postural reflexes are impaired in conditions such as Parkinson's disease, leading to difficulty
walking and falls. In clinical practice, postural responses are assessed using the “pull test,” …

Abstract Background and Purpose The backward push and release test (PRT) is a
standardized clinical test of postural responses elicited by perturbations. Our goal was to …

Fluctuations of motor symptoms make clinical assessment in Parkinson's disease a complex
task. New technologies aim to quantify motor symptoms, and their remote application holds …

Background Postural instability can occur in the later-stages of Parkinson's disease (PD).
The clinical pull-test is scored on a 0–4 scale on the Unified Parkinson's disease rating scale …

Objective This experiment tested if balance performance differed between a standardized
treadmill surface perturbation task and a clinical pull test and was affected by medication or …

The type of balance recovery, feet-in-place or stepping, is predicated on the perturbation
intensity, often defined by the combination of applied force and displacement. Few studies …

Background Assessing postural stability in Parkinson's disease (PD) often relies on
measuring the stepping response to an imposed postural perturbation. The standard clinical …

Postural reflexes in leg muscles appear to be set at a fixed gain in Parkinson's disease. To
further investigate gain adaptation, we instructed 16 patients with idiopathic Parkinson's …

Previous dynamic posturography studies demonstrated clear abnormalities in balance
responses in Parkinson's disease (PD) patients compared to controls at the group level, but …

We studied the pressure exerted by hands during push-ups in 21 paraplegic and 2
tetraplegic patients employing 4 different hand positions. In the fingers-spread position, the …