Bron
Verkorte titel
Aandoening
transfemoral amputation, leg prosthesis, intuitive control, EMG, intention detection
tranfemorale amputatie, beenprothese, intuïtieve controle, EMG, intentie detectie
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
The primary study parameter is the misclassification rate of a classifier.<br>
The misclassification rate of the classifier that is based on biplor EMG and HD-EMG will be compared. In addition,
misclassification rates of classifiers developed with different techniques will also be compared.
Achtergrond van het onderzoek
Rationale: The control of prosthetic knees is not intuitive. Where individuals without an amputation can flex and extend their knee voluntarily, individuals with an amputation cannot do that but have to movement of the residual leg (stump) to control the movement of the prosthetic knee. To realize intuitive control, researcher are working to incorporate muscle activity, as measured with electromyography, in prosthetic knee control. By investigating muscle activity one can predict the activity somebody is (about to be) performing. Based on the activity that is being performed the prosthetic can be set to optimal settings that are needed to successfully complete the activity. There are several ways to obtain muscle activity, including bipolar (using two electrodes) and high-density EMG (using a grid of electrodes). High-density EMG might be beneficial, because more data is obtained and it is less sensitive to electrode placement. The use of HD-EMG, however, has not been studied before in the context of prosthetic knee control.
Objective: The development of classifiers for motion intention detection based on bipolar and high-density EMG (HD-EMG).
Study design: Observational study.
Study population: Individuals without an amputation (n=60) and individuals with a transfemoral amputation (n=10)
Intervention (if applicable): Not applicable.
Main study parameters/endpoints: The main study parameters are the performance of classifiers for motion intention detection. The performance classifiers based on bipolar EMG and HD-EMG will be compared as well as the performance of different types of classifiers. Finally, the feasibility of the development of unsupervised classification algorithms will be investigated.
Onderzoeksopzet
not applicable
Onderzoeksproduct en/of interventie
not applicable
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
Individuals without an amputation
In order to be eligible to participate in this study, a subject must meet all of the following criteria:
- Aged 18 or above.
- Able to perform low to moderate vigorous physical activity for a duration of 3 hours including breaks.
Individuals with an amputation
In order to be eligible to participate in this study, a subject must meet all of the following criteria:
- Aged 18 or above
- Unilateral transfemoral amputation or knee disarticulation.
- Functional level from K2 to K4
o Level 2: The patient has the ability or potential for ambulation with the ability to traverse low-level environmental barriers such as curbs, stairs, or uneven surfaces. Typical of the limited community ambulator.
o Level 3: The patient has the ability or potential for ambulation with variable cadence. Typical of the community ambulatory who has the ability to traverse most environmental barriers and may have vocational, therapeutic, or exercise activity that demands prosthetic utilization beyond simple locomotion.
o Level 4: The patient has the ability or potential for prosthetic ambulation that exceeds basic ambulation skills, exhibiting high impact, stress, or energy levels. Typical of the prosthetic demands of the child, active adult, or athlete.
- Able to perform low to moderate vigorous physical activity for a duration of 3 hours including breaks.
- At least one year after amputation.
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
Individuals without an amputation:
A potential subject who meets any of the following criteria will be excluded from participation in this study:
- Not willing to consent to participate in the study.
- Musculoskeletal problems influencing walking ability.
Individuals with an amputation:
A potential subject who meets any of the following criteria will be excluded from participation in this study:
- Not willing to consent to participate in the study.
- Other musculoskeletal problems influencing walking ability.
- Stump problems/bad socket fitting
Opzet
Deelname
Opgevolgd door onderstaande (mogelijk meer actuele) registratie
Geen registraties gevonden.
Andere (mogelijk minder actuele) registraties in dit register
Geen registraties gevonden.
In overige registers
Register | ID |
---|---|
NTR-new | NL7385 |
NTR-old | NTR7593 |
Ander register | Sponsor;protocol number : Roessingh Research and Development;NL67247.044.18 |