NDLI: Effects of reserve actuators on optimization solutions: From muscle force to joint stiffness

Content Provider	IEEE Xplore Digital Library
Author	Bortoletto, R. Pagello, E. Piovesan, D.
Copyright Year	2015
Description	Author affiliation: Dept. of Inf. Eng., Univ. of Padua, Padua, Italy (Bortoletto, R.; Pagello, E.) \|\| Mech. Eng. Dept., Gannon Univ., Erie, PA, USA (Piovesan, D.)
Abstract	This work presents a comparison between two optimization methods used to compute the muscle activation levels and corresponding forces that drives a set of generalized coordinates towards a set of desired trajectories. To improve the performance of musculoskeletal optimizations a supplemental set of actuators is often included in addition to the modeled muscles. Given a dynamic musculoskeletal model and five sets of reserve actuators, a series of numerical simulations have been performed using experimental data from a healthy male subject who executes a running movement at three different speeds. This is the first work to investigate the incidence of different reserve actuator sets on muscle activation-to-force optimization solutions, with respect to the estimation of the human lower limb muscle forces and corresponding joint stiffness. The results show significant differences between the obtained estimates, indicating a greater accuracy on the Computed Muscle Control solutions than pure Static Optimization solutions.
Starting Page	973
Ending Page	978
File Size	751992
Page Count	6
File Format	PDF
ISSN	19457901
e-ISBN	9781479918089
DOI	10.1109/ICORR.2015.7281330
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-11
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Computational modeling Force Muscles Joints Optimization Foot
Content Type	Text
Resource Type	Article
Subject	Rehabilitation Control and Systems Engineering Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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