Age-Related Gait Changes and Hip Flexibility

Status unconfirmed · Not applicable

Conditions studied: Gait, Flexibility

In brief

Based on their preliminary quantitative gait findings suggesting that limited passive hip extension range is a key functionally limiting impairment affecting gait, the investigators propose a supervised, specific stretching exercise with the aim to improve both peak hip extension and overall gait performance. While one goal is to demonstrate that reduced peak passive hip extension is a key, functionally significant, but reversible, impairment another is to improve our understanding of the relationship between impairment, functional limitation and gait ability.

Key facts

Study ID

NCT00924261

Run by

University of Virginia

People needed

250

Starts

2007-02-01

Expected to finish

2009-12-01

Last updated by the study team

2009-09-04

Who can join

Age: 18 and older, up to 85. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy Elderly Adult Subjects:
• 100 subjects aged 65 years and older will be recruited from the Charlottesville area.
• Participants will be asked to fill out a health questionnaire identical to that used for all preliminary studies. This questionnaire verifies that the participants meet the inclusion criteria for the proposed research project.
• After this initial health questionnaire screening, each participant will undergo a face-to-face history and physical examination screening.
• Frail Elderly Subjects:
• 100 subjects aged 65 years and older who meet the criteria of not being able to function independently, which is considered to be frail, living within the greater Charlottesville area will be recruited for participation in the study.

You may not qualify if…

• Healthy Elderly:
• acute medical illness,
• diagnosis or symptoms of unstable angina or congestive heart failure,
• pulmonary diagnosis or symptoms of emphysema, chronic obstructive disease or asthma and shortness of breath as a result of pulmonary diagnosis brought about by walking on a flat surface,
• advanced cancer,
• neurologic diagnosis including Parkinson's Disease, stroke, brain injury, cerebellar disease, myelopathy, myopathy, peripheral neuropathy, or active radiculopathy,
• major orthopedic diagnosis in the lower back, pelvis, or lower extremities, including hip or other fracture since the age of 50, fused joint, joint replacement, or amputation,
• severe osteoarthritis or rheumatoid arthritis or active joint or musculoskeletal pain in the back or lower extremities occurring at rest or with walking,
• severe osteoporosis with a history of a fragility fracture occurring in the past 12 months, and
• regular use of an assistive device for walking.
• Exclusion criteria per physical examination will be:
• physical signs of congestive heart failure,
• muscle weakness (less than 4/5 manual muscle test strength in lower extremities or focal findings of 1/5 strength difference between sides or upper and lower extremities), absent knee extensor reflexes or positive Babinski responses,
• corrected visual acuity worse than 20/100 or presence of a field defect,
• poor mental state defined with a Mini-Mental Status Examination score less than or equal to 24/30,133
• orthostatic hypotension (greater than 20mmHg decline in systolic blood pressure from supine to standing at one minute), and
• unilateral sensory deficit in lower extremities, bilateral sensory loss in stocking distribution, proprioception less than 75% correct in identifying great toe position, or vibration (from with a 128Hz tuning fork) perceived for less than 10 seconds at either the great toe or medial malleolus in either extremity.
• Frail Elderly (who do not Function Independently):
• are unable to walk independently (i.e., unable to walk without the assistance of another person), or
• have either an acute medical condition or a chronic underlying medical condition which would make it unfeasible or unsafe to participate.
• Regular use of an assistive device, such as a cane, for walking is not an exclusion criterion as long as:
• when using the device, the subject does not require the assistance of another person and
• the subject can walk without the assistive device (with supervisory, but not physical assistance if needed) for the length of the testing walkway, ten times (with rest periods between) at both his/her comfortable walking speed and at a faster walking speed.
• Based upon the questionnaire or medical history, the following specific exclusion criteria will be used:
• acute medical illness,

Where it is running

• Department of Physical Medicine and Rehabilitation, University of Virginia — Charlottesville, Virginia, United States

Full record on ClinicalTrials.gov

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