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Evaluation of the Safety and Usability of the MAK Exoskeleton in Patients With Stroke

Evaluation of the Safety and Usability of the MAK Exoskeleton in Patients With Stroke

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04837144
Enrollment
6
Registered
2021-04-08
Start date
2020-10-06
Completion date
2021-06-23
Last updated
2021-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gait, Hemiplegic, Stroke

Keywords

exoskeleton, robotic device, gait assistance

Brief summary

This study aims to evaluate the safety and usability of a motorized mobility assistance exoskeleton (MAK). The procedure explores the use of the MAK exoskeleton during the static and dynamic rehabilitation sessions with the intention to evaluate the safety and usability of the device in the studied population. The protocol has been focused on defining how the device can be used appropriately in this population in a safe manner by rehabilitation specialists.The study also aims to assess the safety of clinicians implementing the intervention, as well as possible benefits derived from the use of the device. As a secondary outcome, efficacy measurements will be collected.

Interventions

DEVICEPhysical Rehabilitation with MAK exoskeleton

The participants will assist to 9 physical rehabilitation sessions with the MAK exoskeleton. During these sessions, different movements and therapies will be conducted using the studied device.

Sponsors

MarsiBionics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Age between 18 and 85 years * Weight \< 100 kg * Height between 1.5 and 1.9 meters * Anthropometric measurements to fit in the exoskeleton: * Distance from the center of the knee joint to the ground: 42 - 55 cm * Distance from the center of the knee to the groin fold: more than 28 cm. * Perimeter in thigh (midpoint trochanter - epicondyle): 40 - 63 cm. * Perimeter in calf (point of greater volume): 30 - 44 cm. * Ability to follow simple commands and communicate basic needs * Presence of unilateral hemiparesis * Diagnosis of stroke confirmed with imaging tests. * Sub-acute or chronic patients (time since diagnosis 1 month or more) * Score on FAC scale from 1 to 4 * Sufficient postural control to maintain standing posture and to take a step with the weight on the affected lower limb, manual assistance or technical aids being allowed

Exclusion criteria

* Spasticity \> 3 in lower limbs according to the MAS scale * Skin alterations in the contact areas with the exoskeleton * Planned surgical intervention during the duration of the study * Two or more osteoporotic fractures in the lower limbs in the last 2 years * Presence of other pathologies that cause exercise intolerance (such as uncontrolled hypertension, coronary artery disease, arrhythmia, congestive heart failure, Parkinson's, severe lung disease) * Surgical operation in the 3 months prior to the start of the study on the lower limbs

Design outcomes

Primary

MeasureTime frameDescription
Safety as number of serious device adverse eventsafter each use of exoskeleton, for 5 weeksPresence of a serious device adverse events where the participant or therapist is involved

Secondary

MeasureTime frameDescription
Exercises [measured as time per exercise in seconds]after each use of exoskeleton, for 5 weeksMeasured as time per event at each therapy session
Transfers [measured as time to carry out the transfers in seconds]At each use of exoskeleton, for 5 weeksMeasured as time and level of assistance to carry out the transfers
Acceptability [number of participants which discontinue the participation during the trial in relation with the included participants]at the end of the 5th weekMeasured as abandon ratio
Accessibility [number of potential participants in relation with the included participants]at the end of the 5th weekMeasured as relation between number of participants and number of potential participants which weren't recruited
Fall Prevalence [number of falls during the using of the device]During the use of the device, for 5 weeksNumber of falling events ocurred from the participant or therapist
Skin integrity [number of skin injuries related to the device]before and after each use of exoskeleton, for 5 weeksskin integrity measured as the number of skin injuries
Pain [VAS scale]Before and after the use of the device, during 5 weeksPain registered before and after the use of the device, by the participant and therapist
Fatigue [Borg Scale]Before and after the use of the device, during 5 weeksFatigue registered before and after the use of the device, by the participant and therapist
Spasticity [Modified Ashworth Scale]Before and after the use of the device, during 5 weeksSpasticity registered before and after the use of the device
Heart rate [measured with sphygmomanometer]Before and after the use of the device, during 5 weeksNumber of heart beats per minute
Physical evaluation [number of physical injuries detected]Before and after the use of the device, during 5 weeksPhysical Evaluation as presence of tissue damage
Safety as presence of adverse events or adverse device eventsafter each use of exoskeleton, for 5 weeksPresence of a device adverse events where the participant or therapist is involved
ROM [measured with goniometer]At the first day, 3rd week and 5th weekRange of Movement
Functional Mobility [Functional Ambulation Category scale]At the first day, 3rd week and 5th weekFunctional Mobility with and without the device
System Usability [System Usability Scale]At the 5th weekMeasurement of System's Usability measured by the therapist
User perception of the device [QUEST 2.0]At the 5th weekQUEST 2.0 will be assessed by the therapist and participant
Distance covered walking [6MWT]At the first day, 3rd week and 5th week6MWT recorded using the device
Device malfunction [as number and type of device malfunction]During the use of the device, for 5 weeksAny device malfunction will be recorded
Particpant's stability [TUG]At the first day, 3rd week and 5th weekTimed Up and Go Scale
Breath Rate [Breathings per minute]Before and after the use of the device, during 5 weeksNumber of breaths per 1 minute
SP/DP [sphygmomanometer]Before and after the use of the device, during 5 weeksSystolic and Diastolic Pressure measured in mmHg
SpO2 [pulse oximeter]Before and after the use of the device, during 5 weeksSpO2 measured in %
Muscle Strength [measured with Hand Held Dynamometer in N]At the first day, 3rd week and 5th weekMuscle Strength measured at hip, knee and ankle muscles

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026