Evaluation of Physical and Cognitive Industrial Workload

Sponsor

Vrije Universiteit Brussel (Other)

Overall Status

Recruiting

CT.gov ID

NCT03580304

Collaborator

(none)

Enrollment

Location

Arms

Anticipated Duration (Months)

0.4

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

The main aim of the project is to evaluate a novel upper body exoskeleton during simulated industrial work. In this stage of the project, a study analysing the physical and mental load during occupational work will be carried out. High risk tasks will be identified in the field and simulated in lab-setting to analyse physical and mental load using physiological and biomechanical data.These will include, but will not be limited to, non-ergonomic postures, for example performing operations above the head or reaching in front of, to the side of, or behind the body; flexing the arms for extended periods of time; and bending or twisting the torso to lift an object from low or distant locations. Important items to assess in this task are the frequency and duration of tasks and activities, lifting characteristics, perceived physical effort and work-induced fatigue.

Condition or Disease	Intervention/Treatment	Phase
Work-Related Condition Physical Stress Mental Fatigue	Behavioral: Industrial work Behavioral: Physical load Behavioral: Cognitive load	N/A

Study Design

Study Type:

Interventional

Anticipated Enrollment :

20 participants

Allocation:

Randomized

Intervention Model:

Crossover Assignment

Masking:

None (Open Label)

Primary Purpose:

Basic Science

Official Title:

Evaluation of Mental and Physical Load During Lab-simulated Industrial Work

Actual Study Start Date :

Apr 1, 2019

Anticipated Primary Completion Date :

Jul 1, 2022

Anticipated Study Completion Date :

Dec 30, 2022

Arms and Interventions

Arm	Intervention/Treatment
Experimental: industrial-physical-cognitive	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)
Experimental: industrial- cognitive-physical	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)
Experimental: physical- industrial- cognitive	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)
Experimental: physical-cognitive- industrial	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)
Experimental: cognitive- industrial-physical	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)
Experimental: cognitive-physical-industrial	Behavioral: Industrial work Subjects perform simulated industrial work in lab setting. The industrial task exists of a physical component and a cognitive component. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Mental fatigue will be determined by questionnaires and a cognitive stroop task before and after the trial. Behavioral: Physical load The physical load of an industrial task will be simulated during this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min) Behavioral: Cognitive load The cognitive load of an industrial task will be simulated in this intervention. Physical load is measured by questionnaires and basic physiological measurements (e.g. heart rate). Before and after the trial, mental fatigue will be determined by questionnaires and a cognitive stroop task (10 min)

Outcome Measures

Primary Outcome Measures

EEG: change in power spectral density (change in mental fatigue: physiological component) [Measuring EEG during Stroop tasks (10 minutes) before and after each 90 minute task]
The power of different frequency bands during a cognitive Stroop task will be compared PRE vs POST 90 minute task and differences between different tasks will be analysed.

Secondary Outcome Measures

EEG: changes in event related potentials during cognitive Stroop task (change in mental fatigue: physiological component) [Measuring EEG during Stroop tasks (10 minutes) before and after each 90 minute task]
Event related potentials during cognitive Stroop task will be compared PRE vs POST 90 minute task and differences between different tasks will be analysed.
Change in mental fatigue (behavioral component: part 1) [Measuring reaction time during Stroop tasks (10 minutes) before and after each 90 minute task]
Reaction time during cognitive stroop task
Change in mental fatigue (behavioral component: part 2) [Measuring accuracy during Stroop tasks (10 minutes) before and after each 90 minute task]
Accuracy time during cognitive stroop task
Change in mental fatigue (subjective component) [Before and after each 90 minute task subjective questionnaire will be filled out]
Questionnaire (sRPE) before and after performing each 90 min task