Kenji Nakamura, Daigo Takahashi, Tamotsu Yamanaka, Tsuyoshi Takahashi, Y. Usuda, Naoyuki Nishimura, T. Asao
The COVID-19 pandemic has an impact on people's ability to exercise and walk. Decreased ex-ercise habit leads to decreased muscle mass, which may hamper social activities. The decline in exercise habit is a particular challenge among older people, as it may lead to frailty. In this paper, we report that creating arches at the cuboid boneand adductor muscles activates toe movement. We examined whether the arches could be built into shoe insole to correct left-right differences in leg skeletal muscle mass. A prototype insole with arches created at the cuboid boneand transverse head of adductor hallucis musclewas designed, and a prospec-tive cohort study was conducted to examine its effects. Plantar pressure during walking was recorded in 10 sub-jects, and a 3-month intervention study was conducted in 40 subjects. The results showed an increase in toe pressure from before to after wearing the prototype insoles. In addition, leg skeletal muscle mass increased in the group wearing the prototype insole, and a significant difference compared to the control group was detect-ed by Wilcoxon signed-rank test. The results from this study demonstrate that the prototype insole promotes toe movement and increases leg skeletal muscle mass.
{"title":"Basic Investigation of the Effect of Insole Shape on Leg Skeletal Muscle Mass and Pressure Changes during Walking","authors":"Kenji Nakamura, Daigo Takahashi, Tamotsu Yamanaka, Tsuyoshi Takahashi, Y. Usuda, Naoyuki Nishimura, T. Asao","doi":"10.14326/abe.12.124","DOIUrl":"https://doi.org/10.14326/abe.12.124","url":null,"abstract":"The COVID-19 pandemic has an impact on people's ability to exercise and walk. Decreased ex-ercise habit leads to decreased muscle mass, which may hamper social activities. The decline in exercise habit is a particular challenge among older people, as it may lead to frailty. In this paper, we report that creating arches at the cuboid boneand adductor muscles activates toe movement. We examined whether the arches could be built into shoe insole to correct left-right differences in leg skeletal muscle mass. A prototype insole with arches created at the cuboid boneand transverse head of adductor hallucis musclewas designed, and a prospec-tive cohort study was conducted to examine its effects. Plantar pressure during walking was recorded in 10 sub-jects, and a 3-month intervention study was conducted in 40 subjects. The results showed an increase in toe pressure from before to after wearing the prototype insoles. In addition, leg skeletal muscle mass increased in the group wearing the prototype insole, and a significant difference compared to the control group was detect-ed by Wilcoxon signed-rank test. The results from this study demonstrate that the prototype insole promotes toe movement and increases leg skeletal muscle mass.","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66999724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of a Respiration and Cardiac Dynamics Waves Measurement System using Coupled Capacitance Electrode","authors":"M. Iwai, K. Sasaki, N. Honma, Koichiro Kobayashi","doi":"10.14326/abe.12.117","DOIUrl":"https://doi.org/10.14326/abe.12.117","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67000175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuxuan Wang, Honami Hashimoto, T. Nomura, A. Tsukada, Y. Maeda
{"title":"Efficiency of a Visual Search Explained by the Small-World Features of a Gaze Position Network","authors":"Yuxuan Wang, Honami Hashimoto, T. Nomura, A. Tsukada, Y. Maeda","doi":"10.14326/abe.12.37","DOIUrl":"https://doi.org/10.14326/abe.12.37","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67000312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaho Shimada, H. Daisaki, S. Higashiyama, J. Kawabe, R. Nakaoka, A. Shimizu
{"title":"Simulation of Postmarket Fine-tuning of a Computer-aided Detection System for Bone Scintigrams and Its Performance analysis","authors":"Kaho Shimada, H. Daisaki, S. Higashiyama, J. Kawabe, R. Nakaoka, A. Shimizu","doi":"10.14326/abe.12.51","DOIUrl":"https://doi.org/10.14326/abe.12.51","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67000514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ryo Ogawa, Kaito Kageyama, Yasushi Nakatani, Y. Ono, Shingo Murakami
Virtual reality (VR) has been applied to several fields such as entertainment, education, and medicine in recent years. VR is characterized by a high sense of immersion, which can be represented by the attention allocation from the real world to the virtual space. Although a high degree of attention allocation is significant in VR technology, most existing evaluation methods of VR applications are based on subjective questionnaires. Thus, quantitative and objective VR application evaluation methods are needed to realize advanced VR applications. In this study, we adopted a probe stimulus method to evaluate the attention allocation quantitatively and objectively in VR technology. Ten young adult participants underwent an auditory oddball task while they experienced VR content. The amount of attention directed to the VR content could be quantified based on the decrease in the event-related P300 wave response in the case of the oddball task. The participants watched two-dimensional and three-dimensional VR contents on a liquid crystal display and a head-mounted display, respectively, while brain activity was recorded in the form of electroencephalographic signals. A total of 230 probe stimuli at 1800 Hz (standard stimulus), 2000 Hz (target stimulus), and 500 Hz (devi-ant stimulus) were presented randomly via an earphone for 70 ms at 1000-ms intervals at the fractions of 70, 15, and 15%, respectively. Additionally, the reaction time and false reaction rate during the oddball task were measured as behavioral measures, and a questionnaire was used for subjective evaluation after the task. Based on a comparison of the subjective measure, behavioral measure, and amplitudes of P300 measured with the target stimulus from Pz and deviant stimulus from Cz, we found that attention allocation to the VR content can be quantitatively estimated using the amplitude of P300 for the deviant stimulus. These results suggest that the proposed method involving event-related potentials can be used as an indicator for attention allocation while watching VR content. oddball task, probe stimulus method.
{"title":"Event-related Potentials-based Evaluation of Attention Allocation while Watching Virtual Reality","authors":"Ryo Ogawa, Kaito Kageyama, Yasushi Nakatani, Y. Ono, Shingo Murakami","doi":"10.14326/abe.11.1","DOIUrl":"https://doi.org/10.14326/abe.11.1","url":null,"abstract":"Virtual reality (VR) has been applied to several fields such as entertainment, education, and medicine in recent years. VR is characterized by a high sense of immersion, which can be represented by the attention allocation from the real world to the virtual space. Although a high degree of attention allocation is significant in VR technology, most existing evaluation methods of VR applications are based on subjective questionnaires. Thus, quantitative and objective VR application evaluation methods are needed to realize advanced VR applications. In this study, we adopted a probe stimulus method to evaluate the attention allocation quantitatively and objectively in VR technology. Ten young adult participants underwent an auditory oddball task while they experienced VR content. The amount of attention directed to the VR content could be quantified based on the decrease in the event-related P300 wave response in the case of the oddball task. The participants watched two-dimensional and three-dimensional VR contents on a liquid crystal display and a head-mounted display, respectively, while brain activity was recorded in the form of electroencephalographic signals. A total of 230 probe stimuli at 1800 Hz (standard stimulus), 2000 Hz (target stimulus), and 500 Hz (devi-ant stimulus) were presented randomly via an earphone for 70 ms at 1000-ms intervals at the fractions of 70, 15, and 15%, respectively. Additionally, the reaction time and false reaction rate during the oddball task were measured as behavioral measures, and a questionnaire was used for subjective evaluation after the task. Based on a comparison of the subjective measure, behavioral measure, and amplitudes of P300 measured with the target stimulus from Pz and deviant stimulus from Cz, we found that attention allocation to the VR content can be quantitatively estimated using the amplitude of P300 for the deviant stimulus. These results suggest that the proposed method involving event-related potentials can be used as an indicator for attention allocation while watching VR content. oddball task, probe stimulus method.","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66998680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tsutomu Ando, Toshihiro Nozaki, D. Katayama, Masaki Sekino, Kaechang Park
{"title":"Angle Dependency of Intraoral Coil for Magnetic Stimulation Targeting the Base of the Brain","authors":"Tsutomu Ando, Toshihiro Nozaki, D. Katayama, Masaki Sekino, Kaechang Park","doi":"10.14326/abe.11.142","DOIUrl":"https://doi.org/10.14326/abe.11.142","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66998882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tomoko Yamashita, K. Yamashita, Mitsuru Sato, Shingo Ata
{"title":"Differences in Foot Features Between Children and Older Adults Assessed using a Three-Dimensional Foot Scanning System: A Cross-Sectional Observational Study","authors":"Tomoko Yamashita, K. Yamashita, Mitsuru Sato, Shingo Ata","doi":"10.14326/abe.11.172","DOIUrl":"https://doi.org/10.14326/abe.11.172","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66999373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuki Suzuki, S. Kido, Shingo Mabu, M. Yanagawa, N. Tomiyama, Yoshinobu Sato
{"title":"Segmentation of Diffuse Lung Abnormality Patterns on Computed Tomography Images using Partially Supervised Learning","authors":"Yuki Suzuki, S. Kido, Shingo Mabu, M. Yanagawa, N. Tomiyama, Yoshinobu Sato","doi":"10.14326/abe.11.25","DOIUrl":"https://doi.org/10.14326/abe.11.25","url":null,"abstract":"","PeriodicalId":54017,"journal":{"name":"Advanced Biomedical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66999478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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