{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679620065792.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1589/rika.23.55"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"9392516"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/9392516"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I9392516"}},{"identifier":{"@type":"URI","@value":"http://www.jstage.jst.go.jp/article/rika/23/1/23_1_55/_pdf"}},{"identifier":{"@type":"NAID","@value":"130004432474"}},{"identifier":{"@type":"NAID","@value":"10024157597"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2008139648"}}],"dc:title":[{"@language":"en","@value":"Evaluation of Gait Stability Based on Variability of Medio-Lateral Motion of the Center of Mass"},{"@language":"ja","@value":"身体重心の左右変動に基づく歩行の動的安定性評価"},{"@language":"ja-Kana","@value":"シンタイ ジュウシン ノ サユウ ヘンドウ ニ モトズク ホコウ ノ ドウテキ アンテイセイ ヒョウカ"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"The purpose of this study was to investigate an index based on the trajectory of the center of mass (COM) to determine whether it could distinguish between stable and unstable gaits. Eleven healthy males volunteered for this study. To generate an unstable gait condition, we used a separated-belt treadmill. The treadmill belt could be driven at the same speed (stable condition) and at different speeds (unstable condition). In the stable condition, the subjects walked at slow (1.0 km/h), normal (2.5 km/h), and fast (5.0 km/h) rates. In the unstable condition, the subjects were perturbed by randomly decelerating and accelerating one side of the walking belt (0.1 km/h - 5.0 km/h). Lateral sway of COM and stride time were calculated from the trajectory of COM in the frontal plane, and these values were compared between the stable and unstable gait conditions. The result was that coefficient of variation and standard deviation of lateral sway and stride time increased significantly only in the unstable gait condition, while the values were not influenced by gait speed changes between the three stable gait conditions. The results suggest that the trajectory of COM could be used to indicate the stability of the gait, in terms of both spatial and temporal factors.<br>"},{"@language":"ja","@value":"本研究では，身体重心の軌跡の変動に基づき，歩行時の動的安定性を直接数値化し，それが安定した歩行と不安定な歩行を明確に区別できるかを検討した。対象は健常成人男性11名とした。歩行条件としては，トレッドミルを利用した低速度（1.0 km/h），中速度（2.5 km/h），高速度（5.0 km/h）での定常歩行3条件（安定歩行条件）と，トレッドミルのベルト速度を加減速（0.1 - 5.0 km/h）させ，身体のふらつきを誘導した不安定歩行条件の計4条件とした。歩行安定性の評価として，前額面上における身体重心の軌跡から，1歩行周期毎の身体重心左右動揺幅と1歩行周期時間それぞれの平均値，標準偏差，変動係数を求めた。その結果，身体重心左右動揺幅と1歩行周期時間の標準偏差および変動係数は，安定歩行条件下では歩行速度間で有意な差を認めなかったのに対し，安定歩行条件と不安定歩行条件の間には有意な差を認めた。以上より，身体重心軌跡の左右変動は，歩行の不安定さを直接的に表す指標となる可能性が示唆された。<br>"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410009221505870208","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000006497347"},{"@type":"NRID","@value":"9000257760478"}],"foaf:name":[{"@language":"en","@value":"SHINODA Hayato"},{"@language":"ja","@value":"下田 隼人"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Medical Science, Kitasato University"},{"@language":"ja","@value":"北里大学大学院　医療系研究科"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801207024512","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"30274062"},{"@type":"NRID","@value":"1000030274062"},{"@type":"NRID","@value":"9000405896911"},{"@type":"NRID","@value":"9000000485936"},{"@type":"NRID","@value":"9000001933779"},{"@type":"NRID","@value":"9000283754770"},{"@type":"NRID","@value":"9000283753288"},{"@type":"NRID","@value":"9000398957326"},{"@type":"NRID","@value":"9000000305443"},{"@type":"NRID","@value":"9000000485939"},{"@type":"NRID","@value":"9000257758232"},{"@type":"NRID","@value":"9000257755789"},{"@type":"NRID","@value":"9000283759983"},{"@type":"NRID","@value":"9000283753182"},{"@type":"NRID","@value":"9000014175757"},{"@type":"NRID","@value":"9000409342902"},{"@type":"NRID","@value":"9000404670469"},{"@type":"NRID","@value":"9000257755831"},{"@type":"NRID","@value":"9000017430171"},{"@type":"NRID","@value":"9000411042876"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/haru_sato"}],"foaf:name":[{"@language":"en","@value":"SATO Haruhiko"},{"@language":"ja","@value":"佐藤 春彦"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Allied Health Sciences, Kitasato University"},{"@language":"ja","@value":"北里大学　医療衛生学部"}]},{"@id":"https://cir.nii.ac.jp/crid/1420845751141297408","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"50868370"},{"@type":"NRID","@value":"1000050868370"},{"@type":"NRID","@value":"9000263470469"},{"@type":"NRID","@value":"9000018701323"},{"@type":"NRID","@value":"9000006497345"},{"@type":"NRID","@value":"9000283753289"},{"@type":"NRID","@value":"9000408794076"},{"@type":"NRID","@value":"9000249499670"},{"@type":"NRID","@value":"9000398636497"},{"@type":"NRID","@value":"9000403981379"},{"@type":"NRID","@value":"9000283753181"},{"@type":"NRID","@value":"9000345417704"},{"@type":"NRID","@value":"9000258363838"},{"@type":"NRID","@value":"9000412028022"},{"@type":"NRID","@value":"9000412028246"},{"@type":"NRID","@value":"9000403981518"},{"@type":"NRID","@value":"9000257760480"},{"@type":"NRID","@value":"9000263467677"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/19820809-ys"}],"foaf:name":[{"@language":"en","@value":"SUZUKI Yoshikazu"},{"@language":"ja","@value":"鈴木 良和"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Medical Science, Kitasato University"},{"@language":"ja","@value":"北里大学大学院　医療系研究科"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13411667"},{"@type":"EISSN","@value":"24342807"},{"@type":"NDL_BIB_ID","@value":"000000095407"},{"@type":"ISSN","@value":"13411667"},{"@type":"LISSN","@value":"13411667"},{"@type":"NCID","@value":"AN10472896"}],"prism:publicationName":[{"@language":"ja","@value":"理学療法科学"},{"@language":"en","@value":"Rigakuryoho Kagaku"},{"@language":"en","@value":"Rigakuryoho Kagaku"},{"@language":"ja","@value":"理学療法科学"},{"@language":"en","@value":"Rigakuryoho kagaku"}],"dc:publisher":[{"@language":"en","@value":"The Society of Physical Therapy Science"},{"@language":"ja","@value":"理学療法科学学会"}],"prism:publicationDate":"2008","prism:volume":"23","prism:number":"1","prism:startingPage":"55","prism:endingPage":"60"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://id.ndl.go.jp/bib/9392516"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I9392516"},{"@id":"http://www.jstage.jst.go.jp/article/rika/23/1/23_1_55/_pdf"},{"@id":"https://search.jamas.or.jp/link/ui/2008139648"}],"availableAt":"2008","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=dynamic%20stability","dc:title":"dynamic stability"},{"@id":"https://cir.nii.ac.jp/all?q=treadmill","dc:title":"treadmill"},{"@id":"https://cir.nii.ac.jp/all?q=coefficient%20of%20variation","dc:title":"coefficient of variation"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%8B%95%E7%9A%84%E3%83%90%E3%83%A9%E3%83%B3%E3%82%B9","dc:title":"動的バランス"},{"@id":"https://cir.nii.ac.jp/all?q=%E3%83%88%E3%83%AC%E3%83%83%E3%83%89%E3%83%9F%E3%83%AB%E6%AD%A9%E8%A1%8C","dc:title":"トレッドミル歩行"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%A4%89%E5%8B%95%E4%BF%82%E6%95%B0","dc:title":"変動係数"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360001113992776320","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Reliability of videotaped observational gait analysis in patients with orthopedic impairments"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011144283218816","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Temporal variability of gait in Parkinson disease: effectsof a rehabilitation programme based on rhythmic sound 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Gait"},{"@language":"ja","@value":"歩行中の足圧中心軌跡左右動揺量の定量化の試み"},{"@language":"ja-Kana","@value":"ホコウ チュウ ノ ソクアツ チュウシン キセキ サユウ ドウヨウリョウ ノ テイリョウカ ノ ココロミ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679621034112","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Difference in Optimal Walk and Fastest Walk: Analysis by GAITRite"},{"@language":"ja","@value":"最適歩行と最速歩行の相違―ＧＡＩＴＲｉｔｅによる解析―"},{"@language":"ja-Kana","@value":"サイテキ ホコウ ト サイソクホコウ ノ ソウイ GAITRite ニ ヨル カイセキ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679999137024","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Association of Physical Performance and Falls Among the Community Elderly in Japan in a Five Year Follow-up 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