Effects of Different Attentional Focus During Walking on Prefrontal Cortical Activation in Older Adults and Patients With Parkinson's Disease
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 45
- Locations
- 1
- Primary Endpoint
- Effects of oxyhemoglobin variations on hemodynamic response in prefrontal cortex
Study Overview
Brief Summary
Attention may influence the motor performance and frontal activity. This study will examine the effect of different attentional focus: internal, external and divided attention (dual task) on prefrontal cortical activation (fNIRS) and on gait performance. Thirty older adults and thirty PD will participate in this study.
Detailed Description
The subjects will be guided to walk at a normal pace while maintaining the required attentional focus. Subjects will walk on 20 m four times in each of the four different focus conditions :
- no instructions about the attentional focus
- internal focus on their feet movements,
- external focus on two lines drawn on the floor,
- divided attention (walking while performing an arithmetic task).
A fNIRS system will be used for the prefrontal cortex activation evaluation and FeetMe soles for gait analyses.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Basic Science
- Masking
- None
Eligibility Criteria
- Ages
- 60 Years to 85 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •For 2 groups :
- •Man or woman 60-85 years old
- •Informed consent obtained
- •Group Parkinson : clinical diagnosis of idiopathic Parkinson's Disease, according to the UK Brain Bank criteria.
Exclusion Criteria
- •For 2 groups :
- •Assisted walker
- •Neurological (other than those resulting from Parkinson's disease), cardiologic, rheumatologic disorders
- •Disorders affecting gait.
- •Montreal Cognitive Assessment (MOCA) <
- •Concomitant medication likely to interfere with the results.
- •Group Parkinson:
- •Hoehn et Yahr > III
Arms & Interventions
Functional Near-Infrared Spectroscopy (fNIRS)
Subjects will be guided to walk at a normal pace while maintaining the required attentional focus:
- no instructions about the attentional focus
- internal focus on their feet movements,
- external focus on two lines drawn on the floor,
- divided attention (walking while performing an arithmetic task).
A fNIRS system will be used for the prefrontal cortex activation evaluation and connected soles for gait analyses.
Intervention: Functional Near-Infrared Spectroscopy (fNIRS) (Other)
Outcomes
Primary Outcomes
Effects of oxyhemoglobin variations on hemodynamic response in prefrontal cortex
Time Frame: Baseline
Oxyhemoglobin variations in prefrontal cortex will be measured with a fNIRS system, on a 20 meters distance.
Effects of deoxyhemoglobin variations on hemodynamic response in prefrontal cortex
Time Frame: Baseline
Deoxyhemoglobin variations in prefrontal cortex will be measured with a fNIRS system
Secondary Outcomes
- Effects of speed on gait.(baseline)
- Effects of stride length on gait.(baseline)
- Effects of cadence on gait.(baseline)
- Effects of double support time on gait.(baseline)