Mental Fatigue and Industrial Work Performance

NCT ID: NCT04721392

Last Updated: 2021-10-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-03-08

Study Completion Date

2021-08-14

Brief Summary

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To investigate the effect of mental fatigue on industrial work performance, biomechanical determinants, (electro-)(psycho-) physiological measures and physical ergonomics. Additionally, the current project wants to evaluate whether or not the Laevo exoskeleton influences the aforementioned parameters when mental fatigue is acutely induced.

Detailed Description

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Conditions

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Healthy Mental Fatigue Industrial Work Robotics

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Mental fatigue - No Robot

During a 15 minute trial, the participant will relocate a box of 5 kilograms between ground level and shoulder height. During this task, the participants are asked to perform the serial seven task, continuously subtracting seven from a given number between 900 and 950. Afterwards, the participant will perform a 60- minute Stroop task and is asked to repeat this abovementioned physical dual-task.

Group Type EXPERIMENTAL

Mental fatigue (Stroop task)

Intervention Type OTHER

A modified Stroop task of approximately 60 min will be used in order to induce mental fatigue (MF). This will be based on their performance during the max test that was conducted during the familiarization session. In this task, which will be partitioned in 4 blocks of 468 stimuli, four colored words ("rood", "blauw", "groen" and "geel") will be presented one at a time on a computer screen. The participants will be required to indicate the color of the word, ignoring the meaning of the word itself.

Mental fatigue - Exoskeleton

During a 15 minute trial, the participant will wear the Laevo exoskeleton and will relocate a box of 5 kilograms between ground level and shoulder height. During this task, the participants are asked to perform the serial seven task, continuously subtracting seven from a given number between 900 and 950. Afterwards, the participant will perform a 60- minute Stroop task and is asked to repeat this abovementioned physical dual-task.

Group Type EXPERIMENTAL

Mental fatigue (Stroop task)

Intervention Type OTHER

A modified Stroop task of approximately 60 min will be used in order to induce mental fatigue (MF). This will be based on their performance during the max test that was conducted during the familiarization session. In this task, which will be partitioned in 4 blocks of 468 stimuli, four colored words ("rood", "blauw", "groen" and "geel") will be presented one at a time on a computer screen. The participants will be required to indicate the color of the word, ignoring the meaning of the word itself.

No Mental fatigue - No Robot

During a 15 minute trial, the participant will relocate a box of 5 kilograms between ground level and shoulder height. During this task, the participants are asked to perform the serial seven task, continuously subtracting seven from a given number between 900 and 950. Afterwards, the participant will watch a 60- minute neutral documentary and is asked to repeat this abovementioned physical dual-task.

Group Type PLACEBO_COMPARATOR

Control (documentary)

Intervention Type OTHER

In the control task subjects will have to watch a documentary of 60 min on the same computer screen as the one used for the experimental trial. In order to avoid under- and over-arousal the subjects will have the opportunity to choose between several documentaries as proposed by the research team.

No Mental fatigue - Exoskeleton

During a 15 minute trial, the participant will wear the Laevo exoskeleton and will relocate a box of 5 kilograms between ground level and shoulder height. During this task, the participants are asked to perform the serial seven task, continuously subtracting seven from a given number between 900 and 950. Afterwards, the participant will watch a 60- minute neutral documentary and is asked to repeat this abovementioned physical dual-task.

Group Type PLACEBO_COMPARATOR

Control (documentary)

Intervention Type OTHER

In the control task subjects will have to watch a documentary of 60 min on the same computer screen as the one used for the experimental trial. In order to avoid under- and over-arousal the subjects will have the opportunity to choose between several documentaries as proposed by the research team.

Interventions

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Mental fatigue (Stroop task)

A modified Stroop task of approximately 60 min will be used in order to induce mental fatigue (MF). This will be based on their performance during the max test that was conducted during the familiarization session. In this task, which will be partitioned in 4 blocks of 468 stimuli, four colored words ("rood", "blauw", "groen" and "geel") will be presented one at a time on a computer screen. The participants will be required to indicate the color of the word, ignoring the meaning of the word itself.

Intervention Type OTHER

Control (documentary)

In the control task subjects will have to watch a documentary of 60 min on the same computer screen as the one used for the experimental trial. In order to avoid under- and over-arousal the subjects will have the opportunity to choose between several documentaries as proposed by the research team.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Healthy
* Males and Females
* 18-64 years

Exclusion Criteria

* Musculoskeletal disorders
* Neurological disorders
* Cardiovascular disorders
* Pregnancy
Minimum Eligible Age

18 Years

Maximum Eligible Age

64 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Vrije Universiteit Brussel

OTHER

Sponsor Role lead

Responsible Party

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Romain Meeusen

Prof. Dr.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Vrije Universiteit Brussel

Etterbeek, Brussels Capital, Belgium

Site Status

Countries

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Belgium

Other Identifiers

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MF-Industrial Work

Identifier Type: -

Identifier Source: org_study_id