Residual standard deviation: Validation of a new measure of dual-task cost in below-knee prosthesis users

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• 作者：Charla L. Howard^a ; ^b ; ^{choward@mmrcrehab.org} ; Chris Wallace^a ; James Abbas^c ; ¹ ; Dobrivoje S. Stokic^b
• 关键词：Dual-task cost ; Gait variability ; Below knee prosthesis ; Coefficient of variation ; Stride length ; Cadence
• 刊名：Gait & Posture
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：51
• 期：Complete
• 页码：91-96
• 全文大小：601 K
• 卷排序：51

文摘

Residual SD (RSD) was developed to measure variability in stride length and cadence. Larger RSD during dual-task gait in prosthesis users confirms construct validity. Moderate correlation between dual-task cost RSD and CV confirms concurrent validity. Dual-task cost RSD discriminates prosthesis users from controls better than CV.