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- W4386950007 abstract "Abstract While healthy individuals have redundant degrees of freedom of the joints, they coordinate their multi-joint movements such that the redundancy is effectively reduced. Achieving high inter-joint coordination may be difficult for upper limb prosthesis users due to the lack of proprioceptive feedback and limited motion of the terminal device. This study compared inter-joint coordination between prosthesis users and individuals without limb loss during different upper limb activities of daily living (ADLs). Nine unilateral prosthesis users (five males) and nine age- and sex-matched controls without limb loss completed three unilateral and three bilateral ADLs. Principal component analysis was applied to the three-dimensional motion trajectories of the trunk and arms to identify coordinative patterns. For each ADL, we quantified the cumulative variance accounted for (VAF) of the first five principal components (pcs), which was the lowest number of pcs that could achieve 90% VAF in control limb movements across all ADLs (5 < n < 9). The VAF was lower for movements involving a prosthesis compared to those completed by controls across all ADLs (p < 0.001). The pc waveforms were similar between movements involving a prosthesis and movements completed by control participants for pc1 (r > 0.78, p < 0.001). The magnitude of the relationship for pc2 and pc3 differed between ADLs, with the strongest correlation for symmetric bilateral ADLs (0.67 < r < 0.97, p < 0.001). Collectively, this study demonstrates that activities of daily living are less coordinated for prosthesis users compared to individuals without limb loss. Future work should explore how device features, such as the availability of sensory feedback or motorized wrist joints influence multi-joint coordination." @default.
- W4386950007 created "2023-09-23" @default.
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- W4386950007 date "2023-09-22" @default.
- W4386950007 modified "2023-09-27" @default.
- W4386950007 title "Comparison of Inter-Joint Coordination Strategies During Activities of Daily Living with Prosthetic and Anatomical Limbs" @default.
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- W4386950007 doi "https://doi.org/10.1101/2023.09.19.23295716" @default.
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