Faculty Profiles - WADA Chikamune

Papers - WADA Chikamune

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Validation of crutch length estimation methods and proposal of the new method Reviewed

NAGASAKI Takayuki, NINOMIYA Shogo, AKAGI Kaito, AKIYAMA Yuri, ICHIMARU Kiyoka, UCHIYAMA Yu, KUDO Takahiko, KONDO Yuri, SUGAWARA Nao, NAKAO Ayaka, HIRAI Rio, MINAKAMI Kenta, YOSHIMURA Daisuke, WADA Chikamune

Rehabilitation Engineering ( Rehabilitation Engineering Society of JAPAN (RESJA) ) 35 ( 1 ) 27 - 33 2020.02

マーカレスなデジタル画像を用いた円背測定手法の提案

肥田光正，和田親宗，岡松将吾，北川広大，大西忠輔，多田康貴，湯川貴史，川島聡史，南征吾，畑中良太

大阪河崎リハビリテーション大学紀要 ( 14 ) 27 - 31 2020.01

Measurement System for the Clothing Pressure of a Spinal Orthosis using Multiple Pressure Sensors Reviewed International journal

Koji Sakamoto, Kodai Kitagawa, Yuji Katae, Naoki Chijiwa, Aki Kuwazono, Hisashi Arizono, Chikamune Wada

Journal of Mechanical and Electrical Intelligent System 3 ( 1 ) 1 - 9 2020.01

松葉杖長推計法の妥当性の検証と新しい推計法の提案 Reviewed

永﨑孝之，二宮省悟，赤木海斗，秋山ゆり，一丸貴代香，内山優，工藤孝彦，近藤佑吏，菅原菜央，中尾文香，平井莉麻，水上健太，吉村大輔，和田親宗

リハビリテーション・エンジニアリング 35 ( 1 ) 27 - 33 2020.01

Relationship between Lateral Bending and Shoulder Abduction during Double-crutch Walking Reviewed

Yoshiki NISHISAKO, NAGASAKI Takayuki, WADA Chikamune

Rigakuryoho Kagaku ( The Society of Physical Therapy Science ) 35 ( 1 ) 41 - 47 2020.01

Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

[Purpose] We used musculoskeletal simulation to estimate abduction of the shoulder and lateral bending of the spinal column during crutch walking, and investigated the relationship between lateral bending of the spinal column and abduction of the shoulder during double-crutch walking. [Participants and Methods] The participants were five healthy young males. Data of movement during crutch walking was measured using a 3D motion analysis system. Based on the obtained data, shoulder joint abduction and lateral bending of the spinal column during double-crutch walking was estimated using a musculoskeletal simulation. [Results] A significant correlation between the lateral bending angle of the spinal column and abduction angle of the shoulder was found during the crutch stance phase. [Conclusion] A relationship between lateral bending of the spinal column and abduction angle of the shoulder was found, and it was considered that the axillary pad slipping out of the axilla during double-crutch walking was a possible factor.

DOI： 10.1589/rika.35.41

CiNii Article

CiNii Research

Other Link： https://ci.nii.ac.jp/naid/130007803151

Reliability of laser-assisted hindfoot alignment evaluation Reviewed

Ohnishi Tadasuke, Hida Mitsumasa, Nagasaki Takayuki, Wada Chikamune

Journal of Physical Therapy Science ( The Society of Physical Therapy Science ) 32 ( 1 ) 38 - 41 2020.01

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

[Purpose] A goniometer is frequently used for static measurement of hindfoot alignment. However, although goniometer measurements require experience, their reliability and validity remain controversial. We developed a hindfoot alignment measurement method by laser as an alternative measure. The purpose of this study was to examine the reliability of laser-assisted hindfoot alignment evaluation. [Participants and Methods] Two non-expert examiners (without medical knowledge), briefly trained in the use of laser-assisted hindfoot alignment evaluation, evaluated hindfoot alignment in 12 healthy participants. [Results] The ICC of the intra-rater reliability was 0.74 for both examiners and the ICC for inter-rater reliability was 0.43. [Conclusion] The good intra-rater and moderate inter-rater reliability of laser-assisted hindfoot alignment evaluation, when used by non-professionals, suggest the laser-assisted hindfoot alignment evaluation may be appropriate for use in clinical practice settings.

DOI： 10.1589/jpts.32.38

CiNii Article

CiNii Research

PubMed

Other Link： https://ci.nii.ac.jp/naid/130007789043

Effects of the Characteristics and Duration of Chronic Pain on Psychosomatic Function in the Community-Dwelling Elderly Population Reviewed International journal

Hida M., Nakamura M., Imaoka M., Nakao H., Tasaki F., Omizu T., Takeda M., Ohnishi T., Wada C.

Pain Research and Management 2020 2020.01

Text Mining Analysis of Occupational Accidents in Healthcare Service Due to Awkward Movement Reviewed

KITAGAWA Kodai, NAGASAKI Takayuki, NAKANO Sota, HIDA Mitsumasa, OKAMATSU Shogo, WADA Chikamune

Journal of Occupational Safety and Health ( National Institute of Occupational Safety and Health ) 13 ( 2 ) 139 - 143 2020.01

Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

The Ministry of Health, Labour, and Welfare recommends prevention of occupational accidents due to awkward movement in the healthcare service field. This study aimed to determine risk factors of occupational accidents from actual case reports. A total of 1,041 case reports of occupational accidents due to awkward movement in the healthcare service were investigated using the text mining analysis. The number of occurrences for each word was counted, and the co-occurrence network for each word was obtained based on Jaccard coefficients. Results showed that "lower back," "bed," "care," "pain," "transfer," "patient," and "wheelchair" co-occurred in many accident reports. Results suggested that occupational accidents with lower back pain frequently occurred while transferring patients from bed to wheelchair. A previous study in 2008 also reported these risk factors. However, these risk factors remain to be solved. Therefore, urgent and more effective countermeasures are necessary to prevent lower back pain because of transfer.

DOI： 10.2486/josh.JOSH-2020-0007-TA

CiNii Article

CiNii Research

Other Link： https://ci.nii.ac.jp/naid/130007887364

Usefulness of a simulated experience method for transfer assistance for hemiplegia or limited range of motion in multiple joints Reviewed

Nakano Sota, Okada Hirotaka, Higo Shigeyoshi, Nakamura Kouichi, Kitagawa Kodai, Wada Chikamune

Journal of Physical Therapy Science ( The Society of Physical Therapy Science ) 32 ( 8 ) 541 - 544 2020.01

Language：English Publishing type：Research paper (scientific journal)

[Purpose] To further the understanding of dysfunctions to which a simulated experience method could be applied, we clarified whether a simulated experience method can promote caregivers to utilize the abilities of care recipients with pseudo-hemiplegia or pseudo-limited range of motion (ROM) in multiple joints. [Participants and Methods] We studied transfer assistance in 60 nursing assistants from nursing home settings: 30 were assigned to the pseudo-hemiplegia (26 females, 4 males) and limited ROM in multiple joints (27 females, 3 males) groups. One healthy person was fitted with orthotic braces to mimic hemiplegia or limited ROM in multiple joints, each making it difficult to stand-up. Participants were randomized to either a simulated experience group (involving interventional help from a physical therapist between the first and second measurements) or a control group. The load difference on the lower limbs of the care recipient between two rounds of transfer assistance was examined. [Results] The difference between the second and first measurements was −5.9 ± 74.5 N for the control group and 107.9 ± 123.6 N for the simulated experience method in the pseudo-hemiplegia study, and −14.7 ± 64.7 N and 149.1 ± 132.4 N, respectively, for the pseudo-limited ROM-in-multiple-joints study. [Conclusion] The simulated experience method promoted transfer assistance of a care recipient with pseudo-hemiplegia or pseudo-limited ROM in multiple joints. These results suggest that hemiplegia and limited ROM in multiple joints are added as dysfunctions that can be applied to a simulated experience method in transfer assistance.

DOI： 10.1589/jpts.32.541

CiNii Article

CiNii Research

PubMed

Other Link： https://ci.nii.ac.jp/naid/130007886026

Optimal foot-position of caregiver based on muscle activity of lower back and lower limb while providing sit-to-stand support Reviewed

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

Journal of Physical Therapy Science ( The Society of Physical Therapy Science ) 32 ( 8 ) 534 - 540 2020.01

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

[Purpose] In caregivers, low load posture is necessary to prevent lower back pain during patient handling activities such as sit-to-stand support. This study focused on the foot-position of caregivers as an adjustable and useful parameter. A wide stance decreases the stress on the lumbar vertebra. However, this foot-position increases loading of the spinae erector muscles. The aim of this study was to investigate the relationship of anterior-posterior and lateral-medial distances between feet and activity of the spinae erector muscles to determine the optimal foot-position for reducing stress on the lumbar vertebra without increasing spinae erector muscle load. [Participants and Methods] Five young male participants were asked to provide sit-to-stand support 10 times using nine normalized foot-positions with different anterior-posterior and lateral-medial distances. Surface electromyograms of the erector spinae and lower limb muscles were measured during sit-to-stand support. [Results] The results showed that the optimal foot-position (anterior-posterior 55%, lateral-medial 20% of body height) increased muscle activity within the lower limb muscles compared with the lower back muscles and did not increase loads on the erector spinae muscle. [Conclusion] Optimizing foot-position can reduce stress on the lumbar vertebra without increasing load on the spinae erector muscles.

DOI： 10.1589/jpts.32.534

CiNii Article

CiNii Research

PubMed

Other Link： https://ci.nii.ac.jp/naid/130007886024

Validation of body-conducted sound sensor (BCS) for evaluating arteriovenous fistula function Reviewed

Joyashiki Takeshi, Wada Chikamune

Iryou kikigaku (The Japanese journal of medical instrumentation) ( Japanese Society of Medical Instrumentation ) 90 ( 5 ) 414 - 422 2020.01

Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

We verified that arteriovenous fistula (AVF) function can be evaluated from shunt sound using a body-conducted sound sensor (BCS) with a wide-band frequency characteristic. In the BCS, we compared two types of sensors: an air-coupled microphone (ACM) and an acceleration sensor (Type 8001). Evaluation for sensors were performed for 36 patients. We also developed a shunt-sound observation system and evaluated it using the spectrogram and power spectrum values obtained using a sound spectrometer. Furthermore, we verified that two indices of ultrasonography information, namely, the resistance index (RI) and flow volume (FV), can be estimated from the shunt sound and classified through machine learning. The BCS detected the shunt sound signal in the spectrogram over a wide frequency band. The sensitivities of the BCS in the non-amplified detection of stenosis sound signals were 0.93/0.92 (below 1 kHz/above 1 kHz, respectively), surpassing those of other sensors(ACM: 0.82/0.77, Type 8001: 0.82/0.25). Furthermore, the highest machine learning accuracy was obtained using BCS in the classification segments of RI > 0.60, 0.65, and 0.70 and FV < 350 ml/min. BCS is particularly suitable for detecting stenosis sounds of over 1 kHz and estimating RI and is considered to be suitable for functional evaluations of AVF.

DOI： 10.4286/jjmi.90.414

CiNii Article

CiNii Research

Other Link： https://ci.nii.ac.jp/naid/130007958314

Spinal postural alignment measurements using markerless digital photography Reviewed International journal

Hida M., Wada C., Imai R., Kitagawa K., Okamatsu S., Ohnishi T., Kawashima S.

Journal of Orthopaedic Surgery 28 ( 3 ) 2020.01

Regression equation between required force and lumbar load of caregiver in supporting standing-up motion via computational musculoskeletal simulation Reviewed International journal

Kitagawa K., Nishisako Y., Nagasaki T., Nakano S., Hida M., Okamatsu S., Wada C.

Pertanika Journal of Science and Technology 28 ( Special issue 2 ) 59 - 70 2020.01

Linear regression technique for improvement of feet position estimation during standing balance using a cane with millimeter wave radar Reviewed International journal

Fernandez I.G., Kitagawa K., Rahman K.A., Soh A.C., Gopalai A.A., Ahmad S.A., Wada C.

Pertanika Journal of Science and Technology 28 ( Special Issue 2 ) 71 - 81 2020.01

地域在住高齢者における慢性痛の保有期間と心身機能の関係 Reviewed

肥田光正，今岡真和，中村美砂，中尾秀俊，田崎史江，生水智子，武田雅俊，山坂宏太，大西忠輔，和田親宗

慢性疼痛 38 ( 1 ) 229 - 233 2019.12

立ち座り動作支援機器の開発と筋電位評価

三上隼人、土谷圭央、田中孝之、泉博之、和田親宗

第20回計測自動制御学会システムインテグレーション部門講演会 2B1-11 2019.12

ホーム転落防止のためのホーム端検出に関する研究

徳田あかり，和田康宏，和田親宗

第45回感覚代行シンポジウム講演論文集 45 - 48 2019.12

Effects of Counter-Movement Technique during Sport Climbing for Lower Limb Amputees through the Electromyogram Analysis Reviewed International journal

Ryoya Nakamura, Gen Okuya, Yoshiki. Nishisako, Kisuke Iwasaki, Kodai Kitagawa, Naoki Chijiwa, Hisashi Arizono, Chikamune Wada

International symposium on ubiquitous healthcare 2019 (uHealthcare 2019) P-05 2019.12

Prototype of measurement system for clothing pressures in spinal orthosis Reviewed International journal

Koji Sakamoto, Kodai Kitagawa, Yuji Katae, Naoki Chijiwa, Aki Kuwazono, Hisashi Arizono, Chikamune Wada

The 17th International Conference on Biomedical Engineering (ICBME2019) No.1279 2019.12

Estimation Method for Step Length of Caregiver by Machine Learning Technique Using Combination of Insole Pressure Sensor and Inertial Measurement Unit Reviewed International journal

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

The 17th International Conference on Biomedical Engineering (ICBME2019) No.1140 2019.12

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Papers - WADA Chikamune