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dc.contributor.authorWei, Sung-Yangen_US
dc.contributor.authorHsu, Chang Francisen_US
dc.contributor.authorLee, Yun-Juen_US
dc.contributor.authorHsu, Longen_US
dc.contributor.authorChi, Sienen_US
dc.date.accessioned2020-02-02T23:54:35Z-
dc.date.available2020-02-02T23:54:35Z-
dc.date.issued2019-12-01en_US
dc.identifier.urihttp://dx.doi.org/10.3390/e21121210en_US
dc.identifier.urihttp://hdl.handle.net/11536/153550-
dc.description.abstractStatic standing postural stability has been measured by multiscale entropy (MSE), which is used to measure complexity. In this study, we used the average entropy (AE) to measure the static standing postural stability, as AE is a good measure of disorder. The center of pressure (COP) trajectories were collected from 11 subjects under four kinds of balance conditions, from stable to unstable: bipedal with open eyes, bipedal with closed eyes, unipedal with open eyes, and unipedal with closed eyes. The AE, entropy of entropy (EoE), and MSE methods were used to analyze these COP data, and EoE was found to be a good measure of complexity. The AE of the 11 subjects sequentially increased by 100% as the balance conditions progressed from stable to unstable, but the results of EoE and MSE did not follow this trend. Therefore, AE, rather than EoE or MSE, is a good measure of static standing postural stability. Furthermore, the comparison of EoE and AE plots exhibited an inverted U curve, which is another example of a complexity versus disorder inverted U curve.en_US
dc.language.isoen_USen_US
dc.subjectcenter of pressure (COP)en_US
dc.subjectaverage entropy (AE)en_US
dc.subjectentropy of entropy (EoE)en_US
dc.subjectmultiscale entropy (MSE)en_US
dc.subjectinverted U curveen_US
dc.subjectbiological disorderen_US
dc.subjectbiological complexityen_US
dc.titleThe Static Standing Postural Stability Measured by Average Entropyen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/e21121210en_US
dc.identifier.journalENTROPYen_US
dc.citation.volume21en_US
dc.citation.issue12en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000507375900077en_US
dc.citation.woscount0en_US
Appears in Collections:Articles