The Effect of a Passive Hip Exoskeleton on Daily-life Fatigue in Older Adults

January 21, 2026 updated by: David Beckwee, Vrije Universiteit Brussel

Evaluating and Monitoring Physical Fatigue While Performing Functional Activities

This crossover study investigates whether a passive lower-limb exoskeleton (Exoband) can reduce perceived exertion during everyday mobility tasks in older adults. Participants complete the fatigue protocol- a structured sequence of daily challenging tasks (e.g., overground walking, stair and slope walking, obstacle avoidance)-once with the Exoband and once without it, in randomized order and separated by a one-week washout period. During each session, distance covered until fatigue, rate of perceived exertion, physiological and gait parameters are recorded. The aim is to determine whether exoskeleton assistance enhances mobility performance and reduces functional fatigue across older adults.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Enrolling by invitation

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
15

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
    • Brussels Capital
      • Jette, Brussels Capital, Belgium, 1090
        • Brubotics Rehabilitation Research Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • > 65 years old
  • Healthy physical condition

Exclusion Criteria:

  • Physical injury or disorder that doesn't allow good physical performance

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Exoband ON
The participants execute the fatigue protocol while wearing the passive hip exoskeletons (Exoband).
Other: Performance test
The participant will be asked to execute a protocol in the movement lab that induces progressive feelings of fatigue. This protocol includes a sequence of relevant functional activities, such as stair walking, slope walking, crouching, walking different path shapes. During this execution the Ratings of Perceived Exertion will be questioned, and simultaneously physiological and movement data will be collected.
Device: Exoband
The participant will wear the Exoband (Moveo), which is a lightweight, soft wearable exoskeleton designed to assist walking by providing elastic support to the hip during gait. It uses passive elastic elements to store and release energy in sync with the user's movement, reducing muscular effort without motors or batteries. The system is unobtrusive and aims to support mobility while preserving natural movement patterns.
Placebo Comparator: Exoband OFF
The participants execute the fatigue protocol without wearing the passive hip exoskeletons (Exoband).
Other: Performance test
The participant will be asked to execute a protocol in the movement lab that induces progressive feelings of fatigue. This protocol includes a sequence of relevant functional activities, such as stair walking, slope walking, crouching, walking different path shapes. During this execution the Ratings of Perceived Exertion will be questioned, and simultaneously physiological and movement data will be collected.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Changes in the Ratings of Perceived Exertion throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
The subjective feelings of fatigue will be evaluated through the Ratings of Perceived Exertion, using the modified Borg Scale (score ranging from 0 'no exertion' to 10 'maximal exertion'). This will be expressed verbally by the participant throughout the execution of the protocol.
Through study completion, an average of 1-2 weeks.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in muscle activity (surface EMG) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Muscle activity data will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.
Changes in heart rate (variability) (ECG sensors) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Cardiorespiratory data (Heart rate) will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.
Changes in muscle oxygen saturation (Moxy Monitor) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Oxygen saturation data will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.
Changes in electrodermal activity (Galvanic Skin Response - finger electrodes) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Electrodermal activity data will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.
Changes in motion data (IMU sensors) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Inertial Measurement Unit (IMU) data will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.
Changes in respiratory rate (respiratory chest band) throughout the protocol execution
Time Frame: Through study completion, an average of 1-2 weeks.
Respiratory data will be collected continuously throughout the protocol execution. Data acquisition will occur in a synchronized manner.
Through study completion, an average of 1-2 weeks.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Vrije Universiteit Brussel

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: David Beckwée, PhD, Vrije Universiteit Brussel

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 11, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 10, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 21, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 22, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 22, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 21, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RevalExo_Exoband

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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