Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements

Assessing objective physical function in patients with cancer is crucial for evaluating their ability to tolerate invasive treatments. Current assessment methods, such as the timed up and go (TUG) test and the short physical performance battery, tend to require additional resources and time, limitin...

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Main Authors: Nobuji Kouno, Satoshi Takahashi, Ken Takasawa, Masaaki Komatsu, Naoaki Ishiguro, Katsuji Takeda, Ayumu Matsuoka, Maiko Fujimori, Kazuki Yokoyama, Shun Yamamoto, Yoshitaka Honma, Ken Kato, Kazutaka Obama, Ryuji Hamamoto
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Bioengineering
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Online Access:https://www.mdpi.com/2306-5354/11/12/1232
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author Nobuji Kouno
Satoshi Takahashi
Ken Takasawa
Masaaki Komatsu
Naoaki Ishiguro
Katsuji Takeda
Ayumu Matsuoka
Maiko Fujimori
Kazuki Yokoyama
Shun Yamamoto
Yoshitaka Honma
Ken Kato
Kazutaka Obama
Ryuji Hamamoto
author_facet Nobuji Kouno
Satoshi Takahashi
Ken Takasawa
Masaaki Komatsu
Naoaki Ishiguro
Katsuji Takeda
Ayumu Matsuoka
Maiko Fujimori
Kazuki Yokoyama
Shun Yamamoto
Yoshitaka Honma
Ken Kato
Kazutaka Obama
Ryuji Hamamoto
author_sort Nobuji Kouno
collection DOAJ
description Assessing objective physical function in patients with cancer is crucial for evaluating their ability to tolerate invasive treatments. Current assessment methods, such as the timed up and go (TUG) test and the short physical performance battery, tend to require additional resources and time, limiting their practicality in routine clinical practice. To address these challenges, we developed a system to assess physical function based on movements observed during clinical consultations and aimed to explore relevant features from inertial measurement unit data collected during those movements. As for the flow of the research, we first collected inertial measurement unit data from 61 patients with cancer while they replicated a series of movements in a consultation room. We then conducted correlation analyses to identify keypoints of focus and developed machine learning models to predict the TUG test outcomes using the extracted features. Regarding results, pelvic velocity variability (PVV) was identified using Lasso regression. A linear regression model using PVV as the input variable achieved a mean absolute error of 1.322 s and a correlation of 0.713 with the measured TUG results during five-fold cross-validation. Higher PVV correlated with shorter TUG test results. These findings provide a foundation for the development of an artificial intelligence-based physical function assessment system that operates without the need for additional resources.
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spelling doaj-art-8de1d451ef7d4d5faa101ddd6f62909b2024-12-27T14:11:34ZengMDPI AGBioengineering2306-53542024-12-011112123210.3390/bioengineering11121232Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like MovementsNobuji Kouno0Satoshi Takahashi1Ken Takasawa2Masaaki Komatsu3Naoaki Ishiguro4Katsuji Takeda5Ayumu Matsuoka6Maiko Fujimori7Kazuki Yokoyama8Shun Yamamoto9Yoshitaka Honma10Ken Kato11Kazutaka Obama12Ryuji Hamamoto13Division of Medical AI Research and Development, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDivision of Medical AI Research and Development, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDivision of Medical AI Research and Development, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDivision of Medical AI Research and Development, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanCancer Translational Research Team, RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, JapanCancer Translational Research Team, RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, JapanDivision of Survivorship Research, National Cancer Center Institute for Cancer Control, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDivision of Survivorship Research, National Cancer Center Institute for Cancer Control, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDepartment of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDepartment of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDepartment of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDepartment of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanDepartment of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, JapanDivision of Medical AI Research and Development, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanAssessing objective physical function in patients with cancer is crucial for evaluating their ability to tolerate invasive treatments. Current assessment methods, such as the timed up and go (TUG) test and the short physical performance battery, tend to require additional resources and time, limiting their practicality in routine clinical practice. To address these challenges, we developed a system to assess physical function based on movements observed during clinical consultations and aimed to explore relevant features from inertial measurement unit data collected during those movements. As for the flow of the research, we first collected inertial measurement unit data from 61 patients with cancer while they replicated a series of movements in a consultation room. We then conducted correlation analyses to identify keypoints of focus and developed machine learning models to predict the TUG test outcomes using the extracted features. Regarding results, pelvic velocity variability (PVV) was identified using Lasso regression. A linear regression model using PVV as the input variable achieved a mean absolute error of 1.322 s and a correlation of 0.713 with the measured TUG results during five-fold cross-validation. Higher PVV correlated with shorter TUG test results. These findings provide a foundation for the development of an artificial intelligence-based physical function assessment system that operates without the need for additional resources.https://www.mdpi.com/2306-5354/11/12/1232objective physical function assessmenttimed up and go testshort physical performance batteryinertial measurement unitpatients with cancerartificial intelligence
spellingShingle Nobuji Kouno
Satoshi Takahashi
Ken Takasawa
Masaaki Komatsu
Naoaki Ishiguro
Katsuji Takeda
Ayumu Matsuoka
Maiko Fujimori
Kazuki Yokoyama
Shun Yamamoto
Yoshitaka Honma
Ken Kato
Kazutaka Obama
Ryuji Hamamoto
Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
Bioengineering
objective physical function assessment
timed up and go test
short physical performance battery
inertial measurement unit
patients with cancer
artificial intelligence
title Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
title_full Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
title_fullStr Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
title_full_unstemmed Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
title_short Analysis of Inertial Measurement Unit Data for an AI-Based Physical Function Assessment System Using In-Clinic-like Movements
title_sort analysis of inertial measurement unit data for an ai based physical function assessment system using in clinic like movements
topic objective physical function assessment
timed up and go test
short physical performance battery
inertial measurement unit
patients with cancer
artificial intelligence
url https://www.mdpi.com/2306-5354/11/12/1232
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