Postural Control in Adults
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age65-80
SponsorUniversity of Oklahoma
About this trial
The investigators propose a 2-week intervention involving adults over 65 years old. Participants will undergo dynamic balance training on an movable platform (stabilometer) with either restricted or full vision. The primary objective is to facilitate sensory re-weighting, hypothesizing that restricted vision training will increase somatosensory input utilization for postural control. Pre- and post-training assessments will measure postural control during gait initiation under a dual-task condition. The investigators hypothesize that the restricted vision group will demonstrate:
1. Improved postural control, indicated by increased center of pressure displacement during gait initiation. 2. Improved ability to utilize somatosensory input during a balance task.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
age 65 and above
able to walk continuously for at least 10 min without assistive device
have normal or corrected-to-normal vision.
Disqualifiers
neurological conditions such as stroke, Parkinson's disease, multiple sclerosis, brain tumor that significantly affect balance task and walking
known peripheral neuropathy that influence sensation
known vestibular dysfunction
known cognitive impairments
Trial design
Design model
Parallel
Treatments tested in this trial
restricted vision (no-V)
Behavioralno-V group will perform the dynamic balance task with blind-fold. The 2 weeks dynamic balance training involves standing and maintaining balance on a stabilometer, which consists of a platform (1.3m long by 1.4m wide) connected to a single axis that allows bidirectional sway (Lafayette Instrument Co.; Fig. 2). The maximum angular deviation of the platform is 18°. A safety harness may be provided to prevent falls but does not provide support during the performance of the task. Participants are required to maintain balance with feet in a medio-lateral orientation while standing on the balance board. A potentiometer monitors the sway angle of the platform. An integrated timer measures time in balance, which is defined as when the platform angle is within ± 5° of horizontal. The participants will be encouraged to maintain the platform in horizontal for as long as possible within a 30 s trial. Participants assigned to no-V group will perform the task with blind-fold.
full vision (full-V)
BehavioralThe participants will be performing the dynamic balance training with their full vision.
Treatment groups
30 Participants
are divided into 2 treatment groupsGroup A: restricted vision (no-V)Experimental treatment 1 intervention
Group B: full vision (full-V)Active comparator 1 intervention
Trial outcomes
Primary outcomes
1
Dynamic postural control
The center of pressure displacement during gait initiation under a single and a dual-task condition will be measured.
Time frame
From enrollement to one week within the last training days (within 3 weeks from enrollment)2
Somatosensory reliance during static standing
The center of pressure displacement during static standing with eye-closed.
Time frame
From enrollment to within one week after the last day of training (within three weeks from enrollment)Sponsors and contacts
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Source ClinicalTrials.gov