Effect of Motor Imagery Ability on Functionality and Proprioception in Amputees Using Myoelectric Prostheses"

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

RECRUITING

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-06-01

Study Completion Date

2026-06-01

Brief Summary

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The purpose of this study is to evaluate the motor imagery ability in transradial amputees using myoelectric prosthesis, compare it with the control group and investigate its effect on functionality and proprioception.

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Detailed Description

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In the sensory and motor homunculus, the upper extremity, especially the hand, areas cover a larger area. Morphological changes occur in the body in amputees due to upper extremity amputation. In addition, neural restructuring occurs due to the lack of sensory input and visual feedback. These neurophysiological changes experienced in amputees affect the cortical areas of the brain. This situation can also negatively affect motor imagery ability. For this reason, upper extremity prosthesis systems with different control mechanisms have been developed. In one of the developed systems, myoelectric prostheses, since the signals received with electrodes due to muscle contraction provide sensory input to amputees, known that it increases synaptic sprouting in the brain and improves motor imagery ability. There are studies that use motor imagery in stroke, spinal cord injury, Parkinson's disease, postoperative anterior cruciate ligament injuries, cervical and lumbar region pain problems. In addition, it focused on motor imagery after amputation and emphasized that the evidence on whether motor imagery ability is impaired in amputees is not sufficient. In a study, it was found that the use of upper extremity prosthesis increases the hand mental rotation ability and this situation is related to the body integrity of amputees with the use of prosthesis. After investigatorsexamination and screening, to the best of investigators knowledge, no study was found that evaluated the motor imagery ability of transradial amputees using myoelectric controlled prosthesis and examined its effect on functionality. Therefore, the aim of investigators study is to evaluate the motor imagery ability in transradial amputees using myoelectric prosthesis, compare it with the control group and investigate its effect on functionality and proprioception. Transradial amputees using myoelectric prosthesis and the control group (healthy individuals) between the ages of 22-65 will be included in the study. Demographic information of all participants to be included in the study will be recorded with the "Case Assessment Form". Standardized Mini Mental Test (SMMT) to evaluate the cognitive status of individuals, Beck Depression Inventory (BDI) to evaluate depression symptoms, Movement Imagery Questionnaire-3 to evaluate motor imagery ability, Mental Chronometry Test (MKT) measuring motor imagery time, "Orientate" mobile application to evaluate hand mental rotation task performance, Box and Block Test to evaluate gross motor hand skills and functionality, Jebsen Taylor Hand Function Test (JTEFT) to measure upper extremity functions,Disabilities of the Arm Shoulder and Hand (DASH) for upper extremity functional assessment, Modified Functional Reach Test (MFUT) to measure dynamic balance of the trunk, and Joint Position Sense measurement to evaluate proprioceptive sense will be used. All data will be evaluated by statistical analysis methods.

Conditions

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Amputation of Upper Limb Below Elbow Prosthesis User

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Transradial Amputees Using Myoelectric Prosthesis

The Standardized Mini Mental Test (SMMT) will be used to assess the cognitive status of individuals, the Beck Depression Inventory (BDI) to assess depression symptoms, the Movement Imagery Questionnaire-3 to assess motor imagery ability, the Mental Chronometry Test (MKT) to measure motor imagery time, the mobile application called "Orientate" to assess hand mental rotation task performance, the Box and Block Test to assess gross motor dexterity and functionality, the Jebsen Taylor Hand Function Test (JTEFT) to assess fine and gross motor functions of the hand, the Disabilities of the Arm Shoulder and Hand (DASH) for upper extremity functional assessment, the Modified Functional Reach Test (MFUT) to measure the dynamic balance of the trunk and the Joint Position Sense measurement to assess proprioceptive sense.

No intervention

Intervention Type OTHER

Control Healthy Group

The Standardized Mini Mental Test (SMMT) will be used to assess the cognitive status of individuals, the Beck Depression Inventory (BDI) to assess depression symptoms, the Movement Imagery Questionnaire-3 to assess motor imagery ability, the Mental Chronometry Test (MKT) to measure motor imagery time, the mobile application called "Orientate" to assess hand mental rotation task performance, the Box and Block Test to assess gross motor dexterity and functionality, the Jebsen Taylor Hand Function Test (JTEFT) to assess fine and gross motor functions of the hand, the Disabilities of the Arm Shoulder and Hand (DASH) for upper extremity functional assessment, the Modified Functional Reach Test (MFUT) to measure the dynamic balance of the trunk and the Joint Position Sense measurement to assess proprioceptive sense.

No intervention

Intervention Type OTHER

Interventions

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No intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Being an amputee using a unilateral transradial and myoelectric prosthesis
* Having at least 6 months of prosthesis experience
* Having a maximum score of 15 on the Beck Depression Inventory
* Having a minimum score of 26 on the Standardized Mini Mental Test
* Being willing to participate in the study

* Being between the ages of 18-65
* Having a minimum score of 26 on the Standardized Mini Mental Test
* Having signed the Informed Voluntary Consent Form
* Having a maximum score of 15 on the Beck Depression Inventory
* Being literate

Exclusion Criteria

* Having another physical problem other than amputation
* Having a diagnosed cognitive disorder
* Not being able to read or write

* Having any neurological, orthopedic, psychological (such as schizophrenia, psychosis) and systemic problems
* Having an unchangeable visual or auditory disability

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes