TY - JOUR
T1 - Benchmarking between two wearable inertial systems for gait analysis based on a different sensor placement using several statistical approaches
AU - Donisi, Leandro
AU - Pagano, Gaetano
AU - Cesarelli, Giuseppe
AU - Coccia, Armando
AU - Amitrano, Federica
AU - D'Addio, Giovanni
N1 - Funding Information:
Authors thank Dr. F. Gallo of the Neurology Unit of ICS Maugeri Institute of Care and Scientific Research of Telese Terme (BN, Italy) for her strong support in patients? selection and assistance during the gait analysis sessions.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/3
Y1 - 2021/3
N2 - Despite the growing use of different wearable inertial systems for gait analysis in clinical setting, also based on a different sensor placement, there is still a lack of knowledge about the agreement between them and their repeatability. The purpose of this study is to investigate the agreement between two commercial wearable inertial systems for gait analysis: Opal and G-Walk Systems, and their repeatability. Fifty-three subjects, healthy and pathological, underwent a gait analysis session instrumented by both systems, seven spatiotemporal parameters were recorded. The study of agreement was carried out through Bland-Altman Analysis, Passing-Bablok regression and Paired t-test, the study of repeatability through the intra class correlation coefficient ICC(3,1). Study results showed a not perfect agreement between the two systems although they both showed good repeatability. This work underlines the importance to perform a study of agreement before using devices interchangeably or even as a replacement in order to have reliable measurements.
AB - Despite the growing use of different wearable inertial systems for gait analysis in clinical setting, also based on a different sensor placement, there is still a lack of knowledge about the agreement between them and their repeatability. The purpose of this study is to investigate the agreement between two commercial wearable inertial systems for gait analysis: Opal and G-Walk Systems, and their repeatability. Fifty-three subjects, healthy and pathological, underwent a gait analysis session instrumented by both systems, seven spatiotemporal parameters were recorded. The study of agreement was carried out through Bland-Altman Analysis, Passing-Bablok regression and Paired t-test, the study of repeatability through the intra class correlation coefficient ICC(3,1). Study results showed a not perfect agreement between the two systems although they both showed good repeatability. This work underlines the importance to perform a study of agreement before using devices interchangeably or even as a replacement in order to have reliable measurements.
KW - Agreement
KW - Biomechanics
KW - Gait analysis
KW - IMUs
KW - Repeatability
KW - Wearable devices
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U2 - 10.1016/j.measurement.2020.108642
DO - 10.1016/j.measurement.2020.108642
M3 - Article
AN - SCOPUS:85095877144
VL - 173
SP - 108642
JO - Industrial Metrology
JF - Industrial Metrology
SN - 1536-6367
ER -