Using inertial measurement units to estimate spine joint kinematics and kinetics during walking and running.

Autor: Sibson BE; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA. bsibson@g.harvard.edu., Banks JJ; Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, USA.; Department of Orthopedic Surgery, Harvard Medical School, Boston, MA, USA., Yawar A; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA., Yegian AK; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA., Anderson DE; Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, USA.; Department of Orthopedic Surgery, Harvard Medical School, Boston, MA, USA., Lieberman DE; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Jan 02; Vol. 14 (1), pp. 234. Date of Electronic Publication: 2024 Jan 02.
DOI: 10.1038/s41598-023-50652-w
Abstrakt: Optical motion capture (OMC) is considered the best available method for measuring spine kinematics, yet inertial measurement units (IMU) have the potential to collect data outside the laboratory. When combined with musculoskeletal modeling, IMU technology may be used to estimate spinal loads in real-world settings. To date, IMUs have not been validated for estimates of spinal movement and loading during both walking and running. Using OpenSim Thoracolumbar Spine and Ribcage models, we compare IMU and OMC estimates of lumbosacral (L5/S1) and thoracolumbar (T12/L1) joint angles, moments, and reaction forces during gait across six speeds for five participants. For comparisons, time series are ensemble averaged over strides. Comparisons between IMU and OMC ensemble averages have low normalized root mean squared errors (< 0.3 for 81% of comparisons) and high, positive cross-correlations (> 0.5 for 91% of comparisons), suggesting signals are similar in magnitude and trend. As expected, joint moments and reaction forces are higher during running than walking for IMU and OMC. Relative to OMC, IMU overestimates joint moments and underestimates joint reaction forces by 20.9% and 15.7%, respectively. The results suggest using a combination of IMU technology and musculoskeletal modeling is a valid means for estimating spinal movement and loading.
(© 2024. The Author(s).)
Databáze: MEDLINE
Externí odkaz: