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Subjects walked continuously at a constant speed for 50 min on a treadmill with and without the SAS, which is a device to control the walk ratio (step length/cadence) and to add support power to the thigh during walking. A step counter equipped with an infrared device was used to record walking data. The average speeds during treadmill walking were 2.89-3.82 km/h without the SAS and 3.03-4.03 km/h with the SAS. Positron emission tomography (PET) and [18F]fluorodeoxyglucose (FDG) evaluation of glucose metabolism were conducted on each subject twice after walking with and without the SAS.\nResults: Walk ratio, walking speed and step length were significantly improved in all subjects by the SAS, while cadence was significantly decreased by the SAS in all subjects except one. The SAS did not have a significant effect on glucose metabolism of the muscles of the lower extremities. There were no significant correlations between change in walking speed and change in SUV values in each muscle without the SAS and with the SAS. In contrast, significant correlations between walking speed and SUV uptake were shown in gluteus minimus (r = -0.929), hip related muscles (r = -0.862), soleus (r = -0.907), and medial gastrocnemius (r = -0.952) without the SAS. In with the SAS condition, there were significant correlations in gluteus medius (r = -0.899), hip related muscles (r = -0.819), and medial gastrocnemius (r = -0.817) in the elderly subjects.\nConclusions: The SAS increases walking scores in elderly people without increasing energy consumption of lower-extremity muscles. The elderly subjects with low walking speed showed higher glucose metabolism in hip related muscles and triceps surae. Thus, this association suggested that decreased walking speed in elderly adults have higher metabolic cost in these muscle regions.", "subitem_description_type": "Abstract"}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1136/bjsm.2007.039453", "subitem_relation_type_select": "DOI"}}]}, "item_8_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0306-3674", "subitem_source_identifier_type": "ISSN"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "metadata only access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_14cb"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Shimada, Hiroyuki"}], "nameIdentifiers": [{"nameIdentifier": "450152", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ishiwata, Kiichi"}], "nameIdentifiers": [{"nameIdentifier": "450153", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kimura, Yuichi"}], "nameIdentifiers": [{"nameIdentifier": "450154", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "et.al"}], "nameIdentifiers": [{"nameIdentifier": "450155", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "石渡 喜一", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "450156", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "木村 裕一", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "450157", "nameIdentifierScheme": "WEKO"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Effects of an automated stride assistance system on walking parameters and muscular glucose metabolism in elderly adults", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Effects of an automated stride assistance system on walking parameters and muscular glucose metabolism in elderly adults"}]}, "item_type_id": "8", "owner": "1", "path": ["1"], "permalink_uri": "https://repo.qst.go.jp/records/45311", "pubdate": {"attribute_name": "公開日", "attribute_value": "2008-11-06"}, "publish_date": "2008-11-06", "publish_status": "0", "recid": "45311", "relation": {}, "relation_version_is_last": true, "title": ["Effects of an automated stride assistance system on walking parameters and muscular glucose metabolism in elderly adults"], "weko_shared_id": -1}
Effects of an automated stride assistance system on walking parameters and muscular glucose metabolism in elderly adults
https://repo.qst.go.jp/records/45311
https://repo.qst.go.jp/records/453117c7204cc-11ce-49ee-b4e2-13d2c7b5692a
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-11-06 | |||||
タイトル | ||||||
タイトル | Effects of an automated stride assistance system on walking parameters and muscular glucose metabolism in elderly adults | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Shimada, Hiroyuki
× Shimada, Hiroyuki× Ishiwata, Kiichi× Kimura, Yuichi× et.al× 石渡 喜一× 木村 裕一 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objective: To identify the effects of an automated stride assistance system (SAS) on walking scores and muscle activities in the lower extremities of elderly people. Methods: Seven healthy elderly men (73-81 years) participated in this study. Subjects walked continuously at a constant speed for 50 min on a treadmill with and without the SAS, which is a device to control the walk ratio (step length/cadence) and to add support power to the thigh during walking. A step counter equipped with an infrared device was used to record walking data. The average speeds during treadmill walking were 2.89-3.82 km/h without the SAS and 3.03-4.03 km/h with the SAS. Positron emission tomography (PET) and [18F]fluorodeoxyglucose (FDG) evaluation of glucose metabolism were conducted on each subject twice after walking with and without the SAS. Results: Walk ratio, walking speed and step length were significantly improved in all subjects by the SAS, while cadence was significantly decreased by the SAS in all subjects except one. The SAS did not have a significant effect on glucose metabolism of the muscles of the lower extremities. There were no significant correlations between change in walking speed and change in SUV values in each muscle without the SAS and with the SAS. In contrast, significant correlations between walking speed and SUV uptake were shown in gluteus minimus (r = -0.929), hip related muscles (r = -0.862), soleus (r = -0.907), and medial gastrocnemius (r = -0.952) without the SAS. In with the SAS condition, there were significant correlations in gluteus medius (r = -0.899), hip related muscles (r = -0.819), and medial gastrocnemius (r = -0.817) in the elderly subjects. Conclusions: The SAS increases walking scores in elderly people without increasing energy consumption of lower-extremity muscles. The elderly subjects with low walking speed showed higher glucose metabolism in hip related muscles and triceps surae. Thus, this association suggested that decreased walking speed in elderly adults have higher metabolic cost in these muscle regions. |
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書誌情報 |
British Journal of Sports Medicine 巻 42, 号 11, p. 623-629, 発行日 2008-02 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0306-3674 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1136/bjsm.2007.039453 |