研究者詳細 - 和田　親宗

論文 - 和田　親宗

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感覚取り入れ型課題遂行時におけるフロー状態と自律神経系活動査読有り

倉岡宏幸,和田親宗,三宅晋司

産業保健人間工学 23 ( 1 ) 15 - 24 2023年02月

Improvement of Physical Activity Estimation Using the Inertial Measurement Unit based Cane Measurement Device 査読有り国際誌

Takanori Yoshida, Chikamune Wada

Journal of Mechanical and Electrical Intelligent System 6 ( 1 ) 31 - 44 2023年01月

Improving Fall Detection Devices for Older Adults Using Quality Function Deployment (QFD) Approach 査読有り国際誌

Kawthar Abdul Rahman, Siti Anom Ahmad(UPM), Azura Che Soh, Asmidawati Ashari, Chikamune Wada, Alpha Agape Gopalai

Gerontology and Geriatric Medicine 9 1 - 10 2023年01月

Effects of Foot Placements on Lumbar Loads in Patient Transfer Motion: Comparison between Anteroposterior and Mediolateral Placements 査読有り

Kitagawa K., Nodagashira H., Kurosawa T., Maeyama H., Wada C.

GCCE 2023 - 2023 IEEE 12th Global Conference on Consumer Electronics 255 - 256 2023年01月

担当区分：最終著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Many caregivers experienced lower back injuries by patient transfer motion. Patient transfer motion causes lumbar load since this task requires lifting and twisting. For this problem, previous studies explored the suitable posture such as trunk angle to reduce lumbar load in patient transfer motion. However, it is difficult to adjust these postures for caregivers because these postures should be dynamically adjusted in patient transfer motion. Thus, we focus on initial foot placement to reduce lumbar load, because initial foot placement is adjustable before starting transfer. Therefore, the objective of this study is to find suitable initial foot placement for patient transfer motion. In the experiment, 10 healthy males performed simulated patient transfer motion with anteroposterior (AP) and mediolateral (ML) foot placement. Erector spinae muscle activity was measured during patient transfer by the surface electromyography (sEMG). Furthermore, compressive force of L4-L5 was calculated by the computational musculoskeletal simulator. The results showed that AP foot placement provided smaller compressive force of L4-L5 than ML. On the other hand, there was no significant difference for erector spinae muscle activity between AP and ML foot placement. These findings will contribute to determining suitable initial posture to prevent lower back injuries in patient transfer motion.

DOI： 10.1109/GCCE59613.2023.10315426

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85179762746&origin=inward

Night-time Validity Evaluation of Neural Network Model for Assisting Visually Impaired 査読有り国際誌

Shinji Eto, Yasuhiro Wada, Chikamune Wada

10th International Symposium on Applied Engineering and Sciences paper ID: C20 2022年12月

Performance Analysis of YOLOv5 Versions for Bus Detection System to Assist Visually Impaired People in Waiting for The Bus 査読有り国際誌

Rio Arifando, Chikamune Wada

10th International Symposium on Applied Engineering and Sciences paper ID: B14 2022年12月

Combination of Gradient Boosting and Gaussian Process for Foot Placement Prediction using Wearable Sensors 査読有り国際誌

Kodai Kitagawa, Takayuki Nagasaki, Sota Nakano, Mitsumasa Hida, Shogo Okamatsu, Chikamune Wada

10th International Symposium on Applied Engineering and Sciences paper ID: C000020 2022年12月

Study of wobble induction using VR glasses 査読有り国際誌

Tomomasa Ohara, Chikamune Wada

10th International Symposium on Applied Engineering and Sciences paper ID: C000164 2022年12月

IMU-based activity recognition of a spinal orthosis user 査読有り国際誌

Takanori Yoshida, Mizuho Ogata, Sonoda Ren, Yuji Katae, Chikamune Wada

10th International Symposium on Applied Engineering and Sciences paper ID: C000112 2022年12月

Artificial Neural Network for Prediction of Vertebral Force during Manual Lifting using 2D Digital Image 査読有り国際誌

Kodai Kitagawa, Chikamune Wada, Mitsumasa Hida, Hiroaki Yamamoto

10th International Symposium on Applied Engineering and Sciences paper ID: C000007 2022年12月

Foot Placement and Arm Movement Combination while Turning Patients to Prevent Lower Back Pain 査読有り国際誌

Kodai Kitagawa, Koji Matsumoto, Hayato Nodagashira, Takayuki Nagasaki, Sota Nakano, Mitsumasa Hida, Shogo Okamatsu, Chikamune Wada

International Journal of Human Movement and Sports Sciences 10 ( 5 ) 1060 - 1066 2022年10月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）

Nurses and caregivers experienced lower back pain (LBP) as a result of patient handling motions to assist in wheelchair or bed transfer and repositioning. Therefore, previous studies provided assistive tools and devices to reduce lumbar loads while these patients handling motions. However, these devices and tools could not be used in several facilities because these facilities require comfortability, time efficiency, and low cost. Therefore, from these backgrounds, LBP prevention is required for any facility and situation without assistive devices and tools. Low load posture and movement of patient handling motions should be provided for LBP prevention without devices and tools. In our previous study, we explored suitable foot placement to reduce the lumbar load during turning a patient on a bed because patient repositioning on a bed is a serious cause of LBP. However, our previous study indicates that lumbar loads while turning patients cannot be improved only by foot placement adjustment. Postural asymmetry is related to lumbar load and cannot be avoided with only suitable foot placement. On the other hand, adjustment of both arm movement and foot placement has a possibility that reduces lumbar loads due to asymmetry posture. This study aims to explore a suitable combination of foot placement and arm movement order while turning patients for LBP prevention. A total of nine lumbar load combinations consisting of three foot placements (parallel stance, left forward, and right forward) and three arm movement orders (parallel, right first, and left first) were investigated via surface electromyography (sEMG) measurement during patient turning. The results of sEMG showed that a combination using anteroposterior foot placement (right forward) and parallel arm movement (both left and right arm operated at the same time) performed turning patient with the smallest activity for both left and right erector spinae muscles. These results indicate that a combination of anteroposterior foot placement and parallel arm movement could provide a suitable posture to reduce lumbar loads during patient turning.

DOI： 10.13189/saj.2022.100524

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85141204251&origin=inward

Fall and Balance Detection System for Older Persons using Blynk Application 査読有り国際誌

Shalini Murugasen, Siti Anom Ahmad, Kawthar Abdul Rahman, Azura Che Soh, Asmidawati Ashari, Chikamune Wada, Alpha Agape Gopalai

The National Conference on Ageing 2022 27 - 28 2022年10月

A survey of physical and occupational therapists’ views on lumbar loading movements 査読有り国際誌

Zenmyou Yuta, Kawakami Kei, Goto Masaki, Watanabe Kazuya, Okamoto Nobuhiro, Yoshida Mariko, Yamamoto Hiroaki, Wada Chikamune

Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ ( 理学療法科学学会 ) 34 ( 10 ) 683 - 688 2022年10月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）

[Purpose] To identify the lumbar loading movements necessary in clinical practice. [Participants and Methods] A questionnaire survey was conducted among physical and occupational therapists in Japan. There were no exclusion criteria regarding the number of years of experience, age, or field of employment. The participants were randomly selected and administered the questionnaire. They were asked to list and rank the lumbar loadings they considered necessary. [Results] A total of 739 respondents participated in the survey. The results of this nationwide survey indicated that the lifting movement of heavy objects in the trunk flexion position was the most common movement (for 354 participants). [Conclusion] The main loading movements of the lumbar spine were reported to be heavy lifting movements (in the trunk flexion position) and trunk rotation movements. As perspectives, we aim to conduct an analytical study of some of lumbar spine loading movements outlined in this study, using a musculoskeletal simulator and electromyography.

DOI： 10.1589/jpts.34.683

CiNii Research

PubMed

その他リンク： https://www.jstage.jst.go.jp/article/jpts/34/10/34_2022-048/_pdf

残存機能を活用した立ち座り動作支援機器における適正アシスト力の選定と評価査読有り

三上隼人, 土谷圭央, 田中孝之, 和田親宗

産業応用工学会論文誌 ( 一般社団法人産業応用工学会 ) 10 ( 2 ) 82 - 89 2022年09月

担当区分：最終著者記述言語：日本語掲載種別：研究論文（学術雑誌）

Supporting the elderly by utilizing their remaining functions will lead to the extension of their healthy life span. In this study, we developed a portable cane-type standing and sitting positional mobility support device. In this study, we developed a cane-type mobility support device, and selected a suitable support direction for elderly people by dynamic analysis simulation. In addition, the necessary assisting force for the elderly was examined and the assisting force was set. The effectiveness of the device was evaluated by measuring the surface electromyogram of healthy subjects. As a result, it was found that the specifications of this device were effective when the assist direction was 30 degrees and the assist force was 110 N. From the measurement of the surface electromyogram, it was found that the device was effective for both standing and sitting motions. It also helps to ensure the safety of the sitting motion of elderly people.

DOI： 10.12792/jjiiae.10.2.82

CiNii Research

Effect of Knee Orthosis on Lateral Thrust in Patients with Knee Osteoarthritis 査読有り国際誌

Yamamoto H., Endo M., Baba T., Wada C.

Advances in Science, Technology and Engineering Systems Journal 7 ( 5 ) 41 - 45 2022年09月

変形性膝関節症患者の関節位置覚に対する膝装具の効果　―装具の装着圧力に着目した解析― 査読有り

山本裕晃, 岡松将吾, 北川広大, 和田親宗

リハビリテーション・エンジニアリング ( 一般社団法人日本リハビリテーション工学協会 ) 37 ( 2 ) 91 - 96 2022年05月

担当区分：最終著者記述言語：日本語掲載種別：研究論文（学術雑誌）

変形性膝関節症患者は、膝装具装着により関節位置覚が改善することが報告されているが、面ファスナーの締め具合を示す装着圧力には着目されていないことが多い。装着により局所圧迫の神経生理学的な効果が得られているため、装着圧力を高めることにより、さらに関節位置覚が改善する可能性がある。そこで、本研究は変形性膝関節症患者を対象に膝装具の装着圧力に着目し、関節位置覚に与える影響を検証した。結果より、膝関節屈曲60°においては、High PressureがControlと比較して有意に低い値を示した（p ＜ 0.05）。軟性膝装具の装着圧力を高くすることにより、関節位置覚が向上する可能性が示唆された。

DOI： 10.24691/resja.37.2_91

CiNii Research

その他リンク： https://search.jamas.or.jp/link/ui/2022258612

Identification of the cause of fall during the pre-impact fall period 査読有り国際誌

Sasaki Sho, Yamamoto Hiroaki, Kitagawa Kodai, Wada Chikamune

Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ ( 理学療法科学学会 ) 34 ( 4 ) 320 - 326 2022年04月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）

[Purpose] This study aimed to develop and validate a method for identifying factors that may cause a fall during the pre-impact fall period using wearable sensors. [Participants and Methods] The participants were 23 young people from the public data set (mean age, 23.4 years). Acceleration and angular velocity information obtained from sensors attached to the participant’s waist was used to generate the pre-impact fall. The cause of the fall (slip, trip, fainting, get up, sit down) was then classified with and without the addition of activity of daily living data using three different support vector machine. In addition, we investigated the influence of lead time (0–2.0s) on accuracy. [Results] The quadratic and cubic support vector machine identified the activity of daily living and fall patterns more accurately than the linear support vector machine, and the cubic support vector machine was better for classification, although the difference was slight. The greatest accuracy for predicting the cause of the fall (87.9%) was obtained when the cubic support vector machine was used, activity of daily living was factored into the analysis, and the lead time was 0.25 sec. [Conclusion] Support vector machine can identify the cause of the fall during the pre-impact fall period. Appropriate individualized interventions may be designed based on the most likely cause of fall as identified by this analysis method.

DOI： 10.1589/jpts.34.320

CiNii Research

PubMed

その他リンク： https://search.jamas.or.jp/link/ui/2022326094

Examination of knee orthosis for knee osteoarthritis using gait analysis 査読有り国際誌

Hiroaki Yamamoto, Masahide Endo, Tomohiro Baba, Chikamune Wada

2022 IEEE 4th Global Conference on Life Sciences and Technologies (IEEE LifeTech2022) 617 - 619 2022年03月

Automatic Gait Classification using Arm Acceleration based on Stature and Gait Speed 査読有り国際誌

Kitagawa K., Wada C., Toya N.

LifeTech 2022 - 2022 IEEE 4th Global Conference on Life Sciences and Technologies 636 - 637 2022年03月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Unsuitable foot clearance and step length lead falling accidents; thus, these gait parameters should be monitored for fall prevention. According to previous study, users prefer wrist as a position to wear wearable device for daily gait monitoring. Therefore, we have been developing gait monitoring method using wearable device on a wrist. Our previous method classifies gaits with different foot clearance or step length by machine learning technique using 3-axis acceleration data obtained from wearable device on a wrist. The results of our previous study showed that this method could classify gaits for each step. However, accuracy of our previous method was insufficient because individual difference of arm acceleration due to stature or gait speed were not considered. The objective of this study is to propose the gait classification method based on individual difference. The proposed method classifies three gaits with different foot clearance and step length by machine learning technique using combination of arm acceleration, stature, and gait speed. The proposed method was tested for 1800 steps performed from ten participants. The proposed method could classify three gaits with accuracy greater than 0.9. These results indicate possibility that the proposed method can be used for gait monitoring using wearable device.

DOI： 10.1109/LifeTech53646.2022.9754855

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85129225443&origin=inward

聴覚障害者や難聴者の方々の胃部Ｘ線検査受診における胃部Ｘ線検査支援システムの有用性について査読有り

宮田充, 和田親宗, 小林俊哉

日本診療放射線技師会誌 69 ( 832 ) 22 - 29 2022年02月

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