Orthotics and Parkinson's Disease: The Acute and Long-term Effects of Increased Somatosensory Feedback

Orthotics and Parkinson's Disease: The Acute and Long-term Effects of Increased Somatosensory Feedback

The purpose of this study is to increase clinical knowledge of the relationship between increased plantar sensory information and orthotics in a Parkinsonian gait. The objectives of this study are to determine if orthotics, with and without a textured top cover, can alter muscle activation, gait parameters, balance, functional mobility, and decrease fall risks in Parkinson's participants.

The purpose of this study is to increase clinical knowledge of the relationship between increased plantar sensory information and orthotics in a Parkinsonian gait. Observing gait parameters and muscle activation changes, in orthotics with and without a textured top cover, provides an increased understanding of conservative treatment options available to the Parkinson's population. It is hypothesized that balance and functional mobility in Parkinson's Disease (PD) patients will increase, while decreasing fall risks, when wearing both types of orthotics. Larger improvements are expected with the orthotics with a textured top cover, thus increasing plantar sensory feedback. Male and female participants, aged 55-75, with a diagnosis of idiopathic Parkinson's disease can participate in the study. Two types of orthotic design will be examined: 1) Customizable over-the-counter orthotics and 2) Customizable over-the-counter orthotics with a textured top cover. Five different assessments will be performed during three different testing sessions: 1) baseline testing; 2) 6-weeks post-baseline; and 3) 12-weeks post-baseline. The administered assessments include: 1) Static balance, double limb stance; 2) The Berg Balance Scale (BBS); 3) Timed Up and Go (TUG), 4) Functional Gait Assessment (FGA); and 5) Walking task.

Inclusion Criteria:

• diagnosed with idiopathic Parkinson' disease

Exclusion Criteria: A pre-screening questionnaire will assess the following:

• peripheral neuropathy, vestibular concerns, cognitive impairment, severe arthritic conditions, or other conflicting medical conditions
• deep brain stimulation
• currently wearing orthotics, or previously worn in the last two years
• decreased plantar sole sensation
• requires the ability to walk 10m unassisted