The reachable 3-D workspace volume is a measure of payload and body-mass-index:A quasi-static kinetic assessment
| Autor: | Shaoping Bai, Michael Skipper Andersen, John Rasmussen, Miguel Nobre Castro |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Movement Point cloud Physical Therapy Sports Therapy and Rehabilitation Human Factors and Ergonomics Workspace Workload Kinetic energy Measure (mathematics) Body Mass Index Strength measurements 03 medical and health sciences 0302 clinical medicine Elbow Joint Humans 0501 psychology and cognitive sciences Range of Motion Articular Statistical modelling Safety Risk Reliability and Quality Engineering (miscellaneous) 050107 human factors Simulation Mathematics Dynamometer Payload Shoulder Joint 05 social sciences Torso Hand 030210 environmental & occupational health Kinetics Upper extremity kinematics Reachable workspace Ergonomics Quasistatic process Volume (compression) Interior Design and Furnishings |
| Zdroj: | Castro, M N, Rasmussen, J, Bai, S & Andersen, M S 2019, ' The reachable 3-D workspace volume is a measure of payload and body-mass-index : A quasi-static kinetic assessment ', Applied Ergonomics, vol. 75, no. C, pp. 108-119 . https://doi.org/10.1016/j.apergo.2018.09.010 |
| DOI: | 10.1016/j.apergo.2018.09.010 |
| Popis: | An experimental protocol with five tasks is proposed for a low-cost empirical assessment of the reachable 3-D workspace (RWS), including both close-to-torso and far-from-torso regions. Ten participants repeated the protocol for four distinct hand payloads. The RWS expressed as a point cloud and its non-convex alpha-shape were obtained for each case. Moreover, individual strength surrogates for glenohumeral flexion and abduction, and elbow flexion were collected using a dynamometer. The RWS volume was statistically modelled using payload, body-mass-index and the strength surrogates as predictors. For increasing payload, a significant (r = −0.736,p < 0.001) decrease in RWS volume was found for distinct payload cases across all subjects. The only significant predictors found for the RWS volume were normalized payload (F = 73.740,p < 0.001) and body-mass-index (F = 11.008,p = 0.003). No significant interactions were found. The consequent regression model (F(2,27) = 41.11, p < 0.001, R adj 2 = 0.7345) explained around 73% of the variation in the data. The RWS volume is a function of payload and body-mass-index. |
| Databáze: | OpenAIRE |
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