Attentional Focus and Prefrontal Cortical Activation

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Device: Functional Near-Infrared Spectroscopy (fNIRS)

• Registration Number: NCT04757844
• Lead Sponsor: Centre Hospitalier Régional d'Orléans

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 young healthy voluntary adults will participate in this study.

Detailed Description

The subjects will be guided to walk at a normal pace while maintaining the required attentional focus. They will walk on 30 m five times in each of the four different focus conditions :1) no instructions about the attentional focus 2) internal focus on their feet movements, 3) external focus on two lines drawn on the floor, 4) 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 Timeline

• Study First Submitted: 2021-02-09
• Study Start: 2021-02-12
• Study First Submitted QC: 2021-02-12
• Study First Posted: 2021-02-17
• Primary Completion: 2021-04-19
• Study Completion: 2021-04-19
• Status Verified: 2021-08
• Last Update Submitted: 2021-08-31
• Last Update Posted: 2021-09-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• Man or woman
• 18 -30 years old
• Informed consent obtained
• Free from any neurological, cardiologic, rheumatologic disorders.

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Exclusion Criteria

• Assisted walker.
• Disorders affecting gait.
• Concomitant medication likely to interfere with the results.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Young healthy voluntary adults	Functional Near-Infrared Spectroscopy (fNIRS)	30 young healthy voluntary adults

Primary Outcome Measures

Name	Time	Method
Effects of different attentional conditions on hemodynamic response in prefrontal cortex	Baseline	Deoxyhemoglobin variations in prefrontal cortex measured with fNIRS

Secondary Outcome Measures

Name	Time	Method
Effects of speed on gait.	Baseline	Gait parameters will be measured with connected soles FeetMe ® : speed
Effects of stride length on gait.	Baseline	Gait parameters will be measured with connected soles FeetMe ® : stride length
Effects of cadence on gait.	Baseline	Gait parameters will be measured with connected soles FeetMe ® : cadence
Effects of double support time on gait.	Baseline	Gait parameters will be measured with connected soles FeetMe ® : double support time

Trial Locations

Locations (1)

CHR Orléans; 🇫🇷 Orléans, France