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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Analysis of operational comfort in manual tasks using human force manipulability measure.
    Author: Tanaka Y, Nishikawa K, Yamada N, Tsuji T.
    Journal: IEEE Trans Haptics; 2015; 8(1):8-19. PubMed ID: 25415990.
    Abstract:
    This paper proposes a scheme for human force manipulability (HFM) based on the use of isometric joint torque properties to simulate the spatial characteristics of human operation forces at an end-point of a limb with feasible magnitudes for a specified limb posture. This is also applied to the evaluation/prediction of operational comfort (OC) when manually operating a human-machine interface. The effectiveness of HFM is investigated through two experiments and computer simulations of humans generating forces by using their upper extremities. Operation force generation with maximum isometric effort can be roughly estimated with an HFM measure computed from information on the arm posture during a maintained posture. The layout of a human-machine interface is then discussed based on the results of operational experiments using an electric gear-shifting system originally developed for robotic devices. The results indicate a strong relationship between the spatial characteristics of the HFM and OC levels when shifting, and the OC is predicted by using a multiple regression model with HFM measures.
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