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Measuring Technique for a Lower Limb Load Alarm System
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
2006 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

Subsequent to a difficult surgery or a sever injury to the lower part of the body, often partial

load bearing is needed to stimulate an optimal rehabilitation. Today, this is achieved by teaching

the patient the optimal load by iteration. This has been shown insufficient for many patients, due

to their difficulties of remembering the correct amount of load. Furthermore, patients who lack

proprioception are unable to feel the load.

A portable measuring system would enhance the patient possibility of optimal loadings. This

thesis has two main objects. 1. A study of the state of the art on existing commercial system,

related patents and measuring techniques. 2. A new measuring technique, which is the part that

most of all determine the system performance, was developed. A new design, using off the shelf,

products is proposed.

The design uses a finite number of thin sensors placed onto an insole. By placing the sensors at

the plantar pressure points most of the total load is captured by the insole setups. To compensate

for the measuring error fitting methods were evaluated. The result depends on the insole

calibration methods. The best result without individual calibration is: mean error for the group of

0.5% of the total patient load and a deviation of 24%. With individual calibration reduces the

deviation to about 12%.

Place, publisher, year, edition, pages
Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data- och Elektroteknik (IDE) , 2006. , p. 553799 bytes
Keywords [en]
lower limb injury, rehabilitation, Portable measuring system
Identifiers
URN: urn:nbn:se:hh:diva-245Local ID: 2082/540OAI: oai:DiVA.org:hh-245DiVA, id: diva2:237423
Uppsok
Technology
Available from: 2006-11-24 Created: 2006-11-24 Last updated: 2007-01-08

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
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  • nn-NB
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  • Other locale
More languages
Output format
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