Reliability of a markerless motion capture system to measure the trunk, hip and knee angle during walking on a flatland and a treadmill

Markerless motion capture system (MLS) using an infrared sensor such as Microsoft Kinect has been used for gait analysis. Several studies have shown that kinematic measurements of trunk and lower limb joint angles during walking measured by MLS are valid. However, the reproducibility, presence of sy...

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Vydáno v:Journal of biomechanics Ročník 109; s. 109929
Hlavní autoři: Tamura, Hiroyuki, Tanaka, Ryo, Kawanishi, Hiromichi
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Elsevier Ltd 26.08.2020
Elsevier Limited
Témata:
Abnormalities
Ankle
Biomechanical Phenomena
Correlation coefficients
Error analysis
Exercise Test
Fitness equipment
Gait
Hip
Hip joint
Humans
Infrared analysis
Infrared detectors
Joints (anatomy)
Kinematics
Knee
Knee Joint
Microsoft Kinect v2
Motion capture
Random errors
Reliability
Reliability analysis
Reproducibility of Results
Sensors
Software
Systematic errors
Treadmills
Validity
Walking
Japan
Microsoft Kinect v2
Gait
Reliability
Kinematics
ISSN:0021-9290, 1873-2380, 1873-2380
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Popis
Shrnutí:Markerless motion capture system (MLS) using an infrared sensor such as Microsoft Kinect has been used for gait analysis. Several studies have shown that kinematic measurements of trunk and lower limb joint angles during walking measured by MLS are valid. However, the reproducibility, presence of systematic error, or degree of random error of kinematic measurements during walking using MLS with Kinect v2 were not demonstrated. This study was made to confirm the reliability of kinematic measurements using Kinect v2 during gait. Twenty-two young, injury-free individuals volunteered to participate. Walks were made at 2 miles per hour (mph) on both the flatland and the treadmill. Intra-class correlation coefficients (ICCs) were calculated, systematic errors identified, and minimal detectable changes (MDCs) were estimated to assess the reliability of kinematic measurements of trunk, hip, and knee joint angles during walking. For trunk angles measured on the flatland, ICC was higher than 0.6, systematic error was smaller, and MDC was 2.2° smaller than that in gait on the treadmill (6.6°). In hip joint angles measured on the flatland, although systematic error was slight, ICC was not higher than on the treadmill and MDC exceeded 5°. The results for the knee joint were similar to those of the hip joint. Kinect can detect kinematic abnormalities of the trunk during slow walking on the flatland easier than on the treadmill.
Bibliografie:ObjectType-Article-1
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ISSN:0021-9290
1873-2380
1873-2380
DOI:10.1016/j.jbiomech.2020.109929