Variability and Similarity of Gait as Evaluated by Joint Angles: Implications for Forensic Gait Analysis

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Variability and Similarity of Gait as Evaluated by Joint Angles : Implications for Forensic Gait Analysis. / Yang, Sylvia X M; Larsen, Peter Kastmand; Alkjær, Tine; Simonsen, Erik B; Lynnerup, Niels.

I: Journal of Forensic Sciences, Bind 59, Nr. 2, 03.2014, s. 494-504.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Yang, SXM, Larsen, PK, Alkjær, T, Simonsen, EB & Lynnerup, N 2014, 'Variability and Similarity of Gait as Evaluated by Joint Angles: Implications for Forensic Gait Analysis', Journal of Forensic Sciences, bind 59, nr. 2, s. 494-504. https://doi.org/10.1111/1556-4029.12322

APA

Yang, S. X. M., Larsen, P. K., Alkjær, T., Simonsen, E. B., & Lynnerup, N. (2014). Variability and Similarity of Gait as Evaluated by Joint Angles: Implications for Forensic Gait Analysis. Journal of Forensic Sciences, 59(2), 494-504. https://doi.org/10.1111/1556-4029.12322

Vancouver

Yang SXM, Larsen PK, Alkjær T, Simonsen EB, Lynnerup N. Variability and Similarity of Gait as Evaluated by Joint Angles: Implications for Forensic Gait Analysis. Journal of Forensic Sciences. 2014 mar.;59(2):494-504. https://doi.org/10.1111/1556-4029.12322

Author

Yang, Sylvia X M ; Larsen, Peter Kastmand ; Alkjær, Tine ; Simonsen, Erik B ; Lynnerup, Niels. / Variability and Similarity of Gait as Evaluated by Joint Angles : Implications for Forensic Gait Analysis. I: Journal of Forensic Sciences. 2014 ; Bind 59, Nr. 2. s. 494-504.

Bibtex

@article{1908a7109ea14a81b98ff23ad85f6c55,
title = "Variability and Similarity of Gait as Evaluated by Joint Angles: Implications for Forensic Gait Analysis",
abstract = "Closed-circuit television (CCTV) footage is used in criminal investigations to compare perpetrators with suspects. Usually, incomplete gait cycles are collected, making evidential gait analysis challenging. This study aimed to analyze the discriminatory power of joint angles throughout a gait cycle. Six sets from 12 men were collected. For each man, a variability range VR (mean ± 1SD) of a specific joint angle at a specific time point (a gait cycle was 100 time points) was calculated. In turn, each individual was compared with the 11 others, and whenever 1 of these 11 had a value within this individual{\textquoteright}s VR, it counted as positive. By adding the positives throughout the gait cycle, we created simple bar graphs; tall bars indicated a small discriminatory power, short bars indicated a larger one. The highest discriminatory power was at time points 60–80 in the gait cycle. We show how our data can assess gait data from an actual case.",
author = "Yang, {Sylvia X M} and Larsen, {Peter Kastmand} and Tine Alkj{\ae}r and Simonsen, {Erik B} and Niels Lynnerup",
year = "2014",
month = mar,
doi = "10.1111/1556-4029.12322",
language = "English",
volume = "59",
pages = "494--504",
journal = "Journal of Forensic Sciences",
issn = "0022-1198",
publisher = "Wiley-Blackwell",
number = "2",

}

RIS

TY - JOUR

T1 - Variability and Similarity of Gait as Evaluated by Joint Angles

T2 - Implications for Forensic Gait Analysis

AU - Yang, Sylvia X M

AU - Larsen, Peter Kastmand

AU - Alkjær, Tine

AU - Simonsen, Erik B

AU - Lynnerup, Niels

PY - 2014/3

Y1 - 2014/3

N2 - Closed-circuit television (CCTV) footage is used in criminal investigations to compare perpetrators with suspects. Usually, incomplete gait cycles are collected, making evidential gait analysis challenging. This study aimed to analyze the discriminatory power of joint angles throughout a gait cycle. Six sets from 12 men were collected. For each man, a variability range VR (mean ± 1SD) of a specific joint angle at a specific time point (a gait cycle was 100 time points) was calculated. In turn, each individual was compared with the 11 others, and whenever 1 of these 11 had a value within this individual’s VR, it counted as positive. By adding the positives throughout the gait cycle, we created simple bar graphs; tall bars indicated a small discriminatory power, short bars indicated a larger one. The highest discriminatory power was at time points 60–80 in the gait cycle. We show how our data can assess gait data from an actual case.

AB - Closed-circuit television (CCTV) footage is used in criminal investigations to compare perpetrators with suspects. Usually, incomplete gait cycles are collected, making evidential gait analysis challenging. This study aimed to analyze the discriminatory power of joint angles throughout a gait cycle. Six sets from 12 men were collected. For each man, a variability range VR (mean ± 1SD) of a specific joint angle at a specific time point (a gait cycle was 100 time points) was calculated. In turn, each individual was compared with the 11 others, and whenever 1 of these 11 had a value within this individual’s VR, it counted as positive. By adding the positives throughout the gait cycle, we created simple bar graphs; tall bars indicated a small discriminatory power, short bars indicated a larger one. The highest discriminatory power was at time points 60–80 in the gait cycle. We show how our data can assess gait data from an actual case.

U2 - 10.1111/1556-4029.12322

DO - 10.1111/1556-4029.12322

M3 - Journal article

C2 - 24745080

VL - 59

SP - 494

EP - 504

JO - Journal of Forensic Sciences

JF - Journal of Forensic Sciences

SN - 0022-1198

IS - 2

ER -

ID: 117486878