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OpenTrials
Completed

NCT Number: NCT04757844

Attentional Focus and Prefrontal Cortical Activation

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.

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Key information

Conditions

Healthy

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

CHR Orléans

Orléans, 45067, France

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

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

Exclusion criteria

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

Treatment and study plan

Functional Near-Infrared Spectroscopy (fNIRS)

Device

The hemodynamic response in prefrontal cortex will be measured using an Octamon+ system (Artinis). Eight emission and two detector probes will be arranged on the participant's forehead.

Primary outcomes

  1. Effects of different attentional conditions on hemodynamic response in prefrontal cortex

    Time frame: Baseline

    Oxyhemoglobin variations in prefrontal cortex measured with fNIRS

  2. Effects of different attentional conditions on hemodynamic response in prefrontal cortex

    Time frame: Baseline

    Deoxyhemoglobin variations in prefrontal cortex measured with fNIRS

Secondary outcomes

  1. Effects of speed on gait.

    Time frame: Baseline

    Gait parameters will be measured with connected soles FeetMe ® : speed

  2. Effects of cadence on gait.

    Time frame: Baseline

    Gait parameters will be measured with connected soles FeetMe ® : cadence

  3. Effects of stride length on gait.

    Time frame: Baseline

    Gait parameters will be measured with connected soles FeetMe ® : stride length

  4. Effects of double support time on gait.

    Time frame: Baseline

    Gait parameters will be measured with connected soles FeetMe ® : double support time

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Régional d'Orléans

Other

Registry information

Official study title

The Effects of Different Attentional Focus During Walking on Prefrontal Cortical Activation in Young Healthy Adults

Acronym: AttNIRS

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Feb 17, 2021
Registry last updated
Sep 1, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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