Age-Related Gait Changes and Hip Flexibility
Recruitment status was Active, not recruiting
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.
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
|Official Title:||Age-Related Gait Changes and Hip Flexibility|
- Hip Extension [ Time Frame: 10 weeks ] [ Designated as safety issue: No ]
- Hip Flexibility [ Time Frame: 10 weeks ] [ Designated as safety issue: No ]
|Study Start Date:||February 2007|
|Estimated Study Completion Date:||December 2009|
|Estimated Primary Completion Date:||June 2009 (Final data collection date for primary outcome measure)|
Experimental: Hip Stretching
Kneeling Hip flexor stretch - 3 minutes a day, daily, for 10 weeks
Other: Hip Stretch
Hip flexor stretch daily for 3 min x 10 weeks
Experimental: Shoulder Stretch
Shoulder Stretch - 3 minutes daily for 10 weeks
Other: Shoulder Stretch
Shoulder Adduction stretch - 3 minutes, daily, for 10 weeks
Other Name: Shoulder Horizontal Adduction Stretch
- Test the hypothesis that both passive and dynamic hip extension during comfortable and fast walking speeds are reduced in the elderly groups compared to passive and dynamic peak hip extension in healthy young adults.
- Test the hypothesis, separately for each elderly group, controlling for co-factors, that there is greater change in step length in the treatment group compared to the control group, after controlling for co-variates. We also expect greater changes in dynamic hip peak extension, a reduction in anterior pelvic tilt, improvement in age-related reductions in peak ankle plantar flexion and ankle power generation, and in dynamic CoM-CoP moment arm during both comfortable and fast walking, and an increase in comfortable walking speed.
- Test the hypothesis separately for the frail elderly group who cannot independently perform IADL only, controlling for co-factors, that there is a greater change in secondary, non quantitative gait-parameters of the Timed Get Up and Go Test, Activities of Daily Living, Instrumental ADL function, fear of falling and number of falls during 6 months following intervention.
- Test the hypothesis that the created forward dynamic model can accurately predict in individual subjects, the actual effect of an increase in passive peak hip extension on dynamic peak hip extension, anterior pelvic tilt, peak ankle plantar flexion and step length.
|United States, Virginia|
|Department of Physical Medicine and Rehabilitation, University of Virginia|
|Charlottesville, Virginia, United States, 22903|
|Principal Investigator:||Diedre C Kerrigan, MD, MS||University of Virginia|