|
ACCURACY OF INERTIAL MEASUREMENT UNIT POSITION FOR MEASURING THE HEAD AND TRUNK ANGLES |
|---|---|
| รหัสดีโอไอ | |
| Creator | Atipong MONGKOLPICHAYARUK |
| Title | ACCURACY OF INERTIAL MEASUREMENT UNIT POSITION FOR MEASURING THE HEAD AND TRUNK ANGLES |
| Contributor | Weerawat LIMROONGREUNGRAT, Wijittra LIENGSWANGWONG, Parunchaya JAMKRAJANG |
| Publisher | The Sports Science Society of Thailand (SSST) |
| Publication Year | 2567 |
| Journal Title | Journal of SportsScience and Technology |
| Journal Vol. | 24 |
| Journal No. | 1 |
| Page no. | 82-93 |
| Keyword | IMU, Walking, Sit to Stand |
| URL Website | https://he01.tci-thaijo.org/index.php/JSST/index |
| Website title | Journal of Sports Science and Technology |
| ISSN | 1513-7201;2672-927X |
| Abstract | The Inertial Measurement Unit (IMU) has garnered popularity for its application in measuring joint angles during movement due to its cost-effectiveness and suitability for field testing. However, there are instances where the IMU may require relocation, necessitating validation of the accuracy of its new placement. Therefore, the objective of this study was to study the accuracy and reliability of the IMU angle sensor compared with a ‘gold-standard’ retro-reflective motion capture system. Ten healthy volunteers (age 21.33±0.69 years, weight 66.44±11.88 kg, height 173.11±0.05 cm.) performed the sit to stand (STS) and walking test (WT). Three successful trials were averaged. Kinematic data were collected using ten optoelectronic cameras (OMC) and four IMU sensors at 200 Hz. Cluster markers and IMU were attached on forehead,back of head, sternum and C7. Bland-Altman plots demonstrated the point distribution within the interval to validate the IMU locations and twice systems. The levels of significant were set at p < 0.05. Paired samples t-test showed no significant difference between IMU vs OMC and IMU vs IMU in three planes during STS (p > 0.05), however, it showed significant difference between IMU vs IMU in lateral flexion plane during WT (p > 0.05). In conclusion, these findings demonstrate the feasibility of relocating IMU sensors for recording each body segment. The IMU can be considered a valid and accurate for measuring the head and thorax range of motion However, the attachment of the device to the skinemerges as a critical factor that can markedly influence data accuracy, potentially leading to inaccurate |
