Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

Development of techniques for measuring the mobility of knee joints in children with Cerebral Palsy

Wåhlin, Nadia LU and Wrange, Louise LU (2018) BMEM01 20181
Department of Biomedical Engineering
Abstract
Cerebral Palsy, commonly referred to as CP, is a neurological disorder that results in loss or impairment of motor function, which affects body movement, muscle control, muscle coordination and balance. In Sweden, about 200 children are diagnosed with Cerebral Palsy every year and the disorder can cause imbalances between the muscles. These imbalances can lead to contractures which is equiva-
lent to permanent shortening of muscles and stiffness of joints. This can severely affect the mobility of the child and the quality of life.

Today, the only way for physicians or physiotherapists to evaluate the movement
of the joints, is during a patient’s short visits to the hospital. The purpose of this project was to develop a device that was... (More)
Cerebral Palsy, commonly referred to as CP, is a neurological disorder that results in loss or impairment of motor function, which affects body movement, muscle control, muscle coordination and balance. In Sweden, about 200 children are diagnosed with Cerebral Palsy every year and the disorder can cause imbalances between the muscles. These imbalances can lead to contractures which is equiva-
lent to permanent shortening of muscles and stiffness of joints. This can severely affect the mobility of the child and the quality of life.

Today, the only way for physicians or physiotherapists to evaluate the movement
of the joints, is during a patient’s short visits to the hospital. The purpose of this project was to develop a device that was able to measure the range of motion of the knee during a longer period of time, which could help customize the child’s
rehabilitation.

The initial approach was to implement two inertial measurement units (IMUs) and
find the angle between the sensors. Different solutions on finding the angle was
tested without being able to obtain stable data and the project members chose a
new approach. Instead of IMUs, a potentiometer was used and stable data was obtained. A prototype was developed in an iterative and incremental product development process and data was collected during different types of physical exercise.

The final prototype was wireless, able to collect data during ordinary life activities and had a battery life of over 30 hours. The data was analyzed and the results were accurate but showed that the prototype probably hindered some of the natural movement of the knee. The developed prototype is a step towards being able to measure the knee range of motion during a longer period of time, and could be
a tool for physicians and other medical staff when evaluating and rehabilitating
children with CP. (Less)
Popular Abstract (Swedish)
Utveckling av mätteknik för mätning av rörligheten i knäleder hos
barn med Cerebral pares

Cerebral pares (CP) är en neurologisk störning som kan leda till förlust eller nedsättning av de motoriska funktioner som påverkar kroppens rörelser, muskelkontroll, koordination och balans. CP kan orsaka obalanser mellan musklerna som kan leda till kontrakturer. Kontrakturer innebär att musklerna förkortas permanent och styvheten i lederna ökar. Muskelförkortning och styva leder kan drastiskt påverka barnets rörlighet och därmed även livskvaliteten.

I Sverige diagnostiseras cirka 200 barn varje år med CP och i dagsläget är det enda sättet för läkaren eller fysioterapeuten att utvärdera barnens rörelsefunktion under kortare besök på sjukhuset,... (More)
Utveckling av mätteknik för mätning av rörligheten i knäleder hos
barn med Cerebral pares

Cerebral pares (CP) är en neurologisk störning som kan leda till förlust eller nedsättning av de motoriska funktioner som påverkar kroppens rörelser, muskelkontroll, koordination och balans. CP kan orsaka obalanser mellan musklerna som kan leda till kontrakturer. Kontrakturer innebär att musklerna förkortas permanent och styvheten i lederna ökar. Muskelförkortning och styva leder kan drastiskt påverka barnets rörlighet och därmed även livskvaliteten.

I Sverige diagnostiseras cirka 200 barn varje år med CP och i dagsläget är det enda sättet för läkaren eller fysioterapeuten att utvärdera barnens rörelsefunktion under kortare besök på sjukhuset, 1-2 gånger per år. Därför var syftet med detta projekt att utveckla en prototyp som kunde mäta knäets ledrörlighet under en längre period. (Less)
Please use this url to cite or link to this publication:
author
Wåhlin, Nadia LU and Wrange, Louise LU
supervisor
organization
alternative title
Utveckling av mätteknik för mätning av rörligheten i knäleder hos barn med Cerebral pares
course
BMEM01 20181
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Range of motion, Cerebral Palsy
language
English
additional info
2018-04
id
8935974
date added to LUP
2018-02-23 14:26:18
date last changed
2018-02-23 14:26:18
@misc{8935974,
  abstract     = {{Cerebral Palsy, commonly referred to as CP, is a neurological disorder that results in loss or impairment of motor function, which affects body movement, muscle control, muscle coordination and balance. In Sweden, about 200 children are diagnosed with Cerebral Palsy every year and the disorder can cause imbalances between the muscles. These imbalances can lead to contractures which is equiva-
lent to permanent shortening of muscles and stiffness of joints. This can severely affect the mobility of the child and the quality of life.

Today, the only way for physicians or physiotherapists to evaluate the movement
of the joints, is during a patient’s short visits to the hospital. The purpose of this project was to develop a device that was able to measure the range of motion of the knee during a longer period of time, which could help customize the child’s
rehabilitation.

The initial approach was to implement two inertial measurement units (IMUs) and
find the angle between the sensors. Different solutions on finding the angle was
tested without being able to obtain stable data and the project members chose a
new approach. Instead of IMUs, a potentiometer was used and stable data was obtained. A prototype was developed in an iterative and incremental product development process and data was collected during different types of physical exercise.

The final prototype was wireless, able to collect data during ordinary life activities and had a battery life of over 30 hours. The data was analyzed and the results were accurate but showed that the prototype probably hindered some of the natural movement of the knee. The developed prototype is a step towards being able to measure the knee range of motion during a longer period of time, and could be
a tool for physicians and other medical staff when evaluating and rehabilitating
children with CP.}},
  author       = {{Wåhlin, Nadia and Wrange, Louise}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Development of techniques for measuring the mobility of knee joints in children with Cerebral Palsy}},
  year         = {{2018}},
}