Contribution of sex and body constitution to three-dimensional lower extremity alignment for healthy, elderly, non-obese humans in a Japanese population

• Material Type: 博士論文
• Title: Contribution of sex and body constitution to three-dimensional lower extremity alignment for healthy, elderly, non-obese humans in a Japanese population
• Author/Editor: Katsumi, Ryota
• Publication Date: 2020-03-23
• Publication Date (W3CDTF): 2020-03-23
• Alternative Title: 本邦の健常高齢かつ非肥満者において性別と体格が三次元的な下肢アライメントに与える影響について
• Degree grantor/type: 新潟大学
• Date Granted: 2020-03-23
• Date Granted (W3CDTF): 2020-03-23
• Dissertation Number: 甲第4703号
• Degree Type: 博士(医学)
• Conferring No. (Dissertation): 甲第4703号
• Text Language Code: eng
• Subject Heading: Healthy elderly human; Lower extremity alignment; Sex; Body constitution
• Note (General): Background: Humans support their bodies exclusively by vertical balance in bipedal locomotion, and the body, especially the lower extremity, generally changes with age. Sex and body constitution are assumed to be associated with lower extremity alignment, but this association remains to be elucidated. This study sought to clarify this association in healthy, elderly, non-obese humans in a Japanese population. Methods: The present study investigated 55 healthy volunteers (mean age: 70 ± 6 years). A 3D extremity alignment system was applied under weight-bearing conditions on biplane long lower extremities X-rays using a 3D-to-2D image registration technique. The evaluation parameters included 3D hip-knee-ankle angle (3DHKA) alignment in the coronal (coronal alignment) and sagittal planes (sagittal alignment) and rotational alignment between the femur and tibia. The influences of sex and body constitution on all the alignment were analyzed. Results: Multiple linear regression analysis with the dependent variable of each alignment showed that sex was the dominant factor for coronal and rotational alignment (coronal: p < 0.01; rotational: p < 0.01), and body weight was the dominant factor for sagittal alignment (p < 0.01). Conclusions: The association of sex with coronal and rotational alignment and of body constitution with sagittal alignment were proved in healthy, elderly, non-obese humans in a Japanese population. This finding can lead to further understanding of the etiology of many diseases and age-related changes.; Journal of Experimental Orthopaedics. 2018, 5, 32; 新大院博(医)甲第937号
• DOI: info:doi/10.1186/s40634-018-0147-3; https://doi.org/info:doi/10.1186/s40634-018-0147-3
• Persistent ID (NDL): info:ndljp/pid/11538629; https://dl.ndl.go.jp/pid/11538629
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2020-09-07T06:04:08+09:00
• Date Created (W3CDTF): 2020-08-31
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://hdl.handle.net/10191/00051826
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp