Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A balance ability measurement system for older people based on the Wii balance board
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Background

Fall-related  injuries may have huge and enduring impact on older people, resulting in chronic pain, disabled mobility and reducing the quality of life. Fall injuries is becoming a worldwide problem among older people and as a result, the measurement of balance ability for older people is of great importance.

In this master thesis, a system used to measure balance ability will be introduced. The system allows participants to perform a series of balance tasks with the help of Wii balance board (WBB) which is a low-cost, commercial gamming instrument. Previous work has showed the possibility and reliability of using WBB to measure the balance ability for older people.

Methods

Mean sway velocity (MSV) is used to measure the tandem stance test.  Five-Repetition Sit-to-Stand (STS) test is measured by STS time. Since the system has high requirements on the input validity, input validation is also a main part of this thesis. Matlab is used to check the output validity of the program.

Results

For the tandem stance test, our results (mean = 7.87) are much larger than the results from previous work (mean = 4.27). The results indicate that experimental factors such as standing posture and testing time have great impact on the average MSV results for tandem stance test.

For the five-repetition Sit-to-Stand test, our young participant did 9.97 seconds on average which is close to previous work (8.2 for average young people without balance disorders)

The results from output validation test for tandem stance show that the correctness of the program is highly reliable.

Conclusions

We found standing postures and testing time is very sensitive to MSV. To conduct a tandem stance test, the hardware should also be considered to be one of the main factors that affects MSV. Testing results again indicate STS time is a good measurement for STS test. In our input validation test for tandem stance, we also found an effective and sensitive interval for the arguments which can be considered to be a good discriminator to distinguish between valid and invalid inputs.

Place, publisher, year, edition, pages
2012.
Series
IT, 12 066
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-188449OAI: oai:DiVA.org:uu-188449DiVA: diva2:577877
Educational program
Master Programme in Computer Science
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-12-17 Created: 2012-12-17 Last updated: 2012-12-17Bibliographically approved

Open Access in DiVA

fulltext(1893 kB)676 downloads
File information
File name FULLTEXT01.pdfFile size 1893 kBChecksum SHA-512
f829544c964fc4bc5e48ec02f6fc8ef5ca8d5bb765831df91c123fa39a0692d54b4ed5512c72ce8cf3a2ce815b30a819335893e54c8eadf41b3e801256bf82a6
Type fulltextMimetype application/pdf

By organisation
Department of Information Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 676 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 490 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf