東北大学研究者紹介 - 野津　将時郎

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野津　将時郎

所属

大学院医工学研究科　医工学専攻　社会医工学講座（医療福祉工学分野）

職名

助教

学位

博士（スポーツ医学）（筑波大学）
修士（体育学）（筑波大学）

researchmap

https://researchmap.jp/s.nozu54

J-GLOBAL ID

202101007950212002

ORCID

https://orcid.org/0000-0002-3178-6099

経歴 1

2021年4月～ 2023年3月

順天堂大学　スポーツ健康医科学研究所　博士研究員

学歴 5

筑波大学　人間総合科学研究科　スポーツ医学専攻

2016年4月～ 2021年3月
University of Iowa　Department of Physical Therapy and Rehabilitation Science

2019年1月～ 2019年9月
University of Otago　School of Physiotherapy

2018年9月～ 2018年12月
筑波大学　人間総合科学研究科　体育学専攻

2014年4月～ 2016年3月
北海道大学　医学部　保健学科・理学療法学専攻

2010年4月～ 2014年3月

研究キーワード 4

動作評価
足関節捻挫
スポーツ医学
理学療法

研究分野 1

ライフサイエンス / リハビリテーション科学 / 理学療法

論文 36

Center of mass displacement and lower limb kinematics during the side hop test in individuals with and without chronic ankle instability

Shojiro Nozu, Tadamitsu Matsuda, Yuji Takazawa

Physical Therapy in Sport　2025年11月

DOI： 10.1016/j.ptsp.2025.09.009 　
日本におけるスポーツ医学教育の現状と課題スポーツ医学と多職種連携

高澤祐治, 深尾宏祐, 塩田有規, 小松孝行, 染谷由希, 井澤秀典, 室伏由佳, 窪田敦之, 野津将時郎, 内野小百合, 塩澤淳, 山口達也, 青柳壮志, 長尾雅史

日本臨床スポーツ医学会誌　33　(2)　240-242　2025年4月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
Postural control strategies in individuals with and without chronic ankle instability during the reach phase of the posteromedial direction of the star excursion balance test

Shojiro Nozu, Kristin A. Johnson, Tadamitsu Matsuda, Yuji Takazawa

Physical Therapy in Sport　2025年3月

DOI： 10.1016/j.ptsp.2024.12.008 　
Kinetic Factors Related to the Side Hop Test Time in Healthy Individuals

Kyoya Ono, Shojiro Nozu, Takuya Yoshida, Masamichi Okudaira, Kazuki Ota, Satoru Tanigawa

Translational Sports Medicine　2025年1月

DOI： 10.1155/tsm2/3241325 　
日本におけるスポーツ医学教育の現状と課題スポーツ医学と多職種連携

高澤祐治, 塩田有規, 小松孝行, 染谷由希, 井澤秀典, 野津将時郎, 室伏由佳, 山口達也, 青柳壮志, 内野小百合, 深尾宏祐, 長尾雅史, 窪田敦之

日本臨床スポーツ医学会誌　32　(4)　S166-S166　2024年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
消防団員の演習訓練中における外傷・障害予防を目的とした運動プログラムの開発

宮森隆行, 長尾雅史, 西尾啓史, 岩木峻平, 野津将時郎, 斎藤正治, 福井隆久, 吉田友哉, 甲能萌, 高澤祐治

順天堂保健医療学雑誌　5　40-45　2024年9月
出版者・発行元：順天堂大学保健医療学部
ISSN：2435-5852

eISSN：2435-5860
膝蓋腱炎に対する日本語版the Victorian Institute of Sports Assessment for Patellar tendinopathy(VISA-P-J)の異文化適応,妥当性,信頼性,反応性についての検討

富樫維親, 長尾雅史, 西尾啓史, 野津将時郎, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　32　(3)　375-383　2024年8月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
Reliability and validity of muscle activity analysis using wearable electromyographs.

Tadamitsu Matsuda, Takayuki Miyamori, Yuji Fujino, Shojiro Nozu, Yuma Kajiwara

Journal of physical therapy science　36　(3)　123-127　2024年3月

DOI： 10.1589/jpts.36.123 　

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[Purpose] The aim of this study was to develop a novel wearable surface electromyograph called NOK, and compare its reliability and validity to an existing electromyograph. [Participants and Methods] The study participants were 23 healthy university students (Seven males and 16 females; age 20.3 ± 1.1 years [mean ± standard deviation]; height 162.0 ± 6.7 cm; weight 58.4 ± 10.1 kg) who all gave informed written consent. The newly developed electromyograph (NOK) features a rubberized skin contact surface that requires no electrodes and allows the acquisition of up to 10 channels of muscle waveforms on a portable personal computer. After measuring maximal isometric elbow extension and flexion, we examined muscle waveforms during isometric contractions of elbow joint flexion and extension at approximately 50% of maximal voluntary contraction using both NOK and Delsys electromyographs and compared the results of the two devices. [Results] We found a significant moderate correlation between the measurements by the two devices for biceps and triceps. The measurements by the two devices also showed strong measure-retest reliability. Systematic errors were observed for elbow flexion and extension in the two measurements, indicating limited agreement between the two measurement methods. [Conclusion] Although the new device also has high repeatability and reliability, it is unsuitable for analyzing detailed muscle activity. However, since it can measure up to 10 channels of muscle activity, it is expected to be used in the rehabilitation and sports field in the future.
膝蓋腱炎に対する日本語版the Victorian Institute of Sports Assessment for Patellar tendinopathy（VISA-P-J）の異文化適応，妥当性，信頼性，反応性についての検討

富樫維親, 長尾雅史, 西尾啓史, 野津将時郎, 塩田有規, 髙澤祐治

日本臨床スポーツ医学会誌　32　(3)　375-383　2024年
出版者・発行元：一般社団法人日本臨床スポーツ医学会
DOI： 10.57474/jjcsm.32.3_375 　

ISSN：1346-4159

eISSN：2758-3767

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本研究では日本語版The Victorian Institute of sports assessment for patellar tendinopathy（VISA-P-J）の翻訳，異文化適応，および尺度特性を評価した．膝蓋骨下極に1ヵ月以上持続する疼痛症状がある18歳以上の43名を対象とし，VISA-P-J，日常生活およびスポーツ活動中における主観的疼痛，症状分類，PGICを初回，1週間後，12週間後の計3回評価した．尺度特性は患者報告式アウトカム尺度の評価法であるCOSMINに準じて，再検査信頼性・測定誤差・内的整合性，内容的妥当性・基準関連妥当性・構成概念妥当性，反応性，解釈可能性を評価した．VISA-P-Jの再検査信頼性を表す級内相関係数は0.87，測定誤差は0.89%であった．内的整合性を示すCronbach’s alphaは0.81であった．基準関連妥当性では，VISA-P-Jと症状分類，日常生活およびスポーツ活動中における主観的疼痛との間に相関がみられた（r=－0.52，r=0.66，r=0.86，p＜0.01）．構成概念妥当性と反応性を評価する仮説検証法では，すべての仮説が立証された．解釈可能性として設定したMCIDは7点であった．以上より，VISA-P-Jは膝蓋腱の慢性的な痛みを持つ人に対する信頼性，妥当性は高く，反応性のある評価法であることが示された．
Relationship between the contact load and time-loss injuries in rugby union. 国際誌

Yusuke Iwasaki, Yuki Someya, Masashi Nagao, Shojiro Nozu, Yuki Shiota, Yuji Takazawa

Frontiers in sports and active living　6　1395138-1395138　2024年

DOI： 10.3389/fspor.2024.1395138 　

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OBJECTIVE: Quantifying and managing the matches and training loads of players is important for injury prevention. As rugby union is a full-contact sport and frequent contact injuries occur, it might also be important to quantify and manage players' contact loads. This study aimed to clarify the relationship between contact load and injury incidence in elite rugby union players. METHODS: Forty-eight elite rugby union players (27.0 ± 3.5 years) in Japan were monitored during one season (8 months). The contact load, an index of training load, was evaluated as collision count and collision load measured using a global positioning system device, and then calculated using the acute:chronic workload ratio (ACWR) based on the exponentially weighted moving average (EWMA). The association between the EWMA-ACWR of contact load and injury incidence was analyzed using generalized estimating equations. RESULTS: Of the 58 injuries during one season, 70.7% were contact injuries. Collision counts and collision load calculated by EWMA-ACWR were associated with the risk of injury (p < 0.01 both), with the odds ratios were 4.20 [95% confidence interval (CI): 1.74-10.11] and 4.44 (95% CI: 1.95-10.13), respectively. CONCLUSION: Contact load calculated using EWMA-ACWR was associated with injury in elite rugby union players.
ポンプ操法訓練中の外傷・障害予防を目的とした運動プログラムの開発

岩木峻平, 宮森隆行, 高澤祐治, 長尾雅史, 西尾啓史, 野津将時郎, 吉田友哉, 甲能萌, 福井隆久, 斎藤正治

日本臨床スポーツ医学会誌　31　(4)　S233-S233　2023年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
Differences in the elastic modulus of the lumbar muscles between female athletes with and without low back pain. 国際誌

Takayuki Miyamori, Taiki Saito, Masashi Aoyagi, Shojiro Nozu, Yuki Masui, Yoshihiko Ishihara, Yu Shimasaki, Masafumi Yoshimura

Clinical biomechanics (Bristol, Avon)　105　105968-105968　2023年5月

DOI： 10.1016/j.clinbiomech.2023.105968 　

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BACKGROUND: Low back pain is the most prevalent musculoskeletal disorder affecting performance and sports participation among athletes and is more prevalent among female athletes. Evaluating the stiffness of the lumbar muscles is important for understanding the pathophysiology of low back pain. Therefore, this study examined the differences in stiffness of the lumbar multifidus and erector spinae muscles between female university athletes with and without low back pain. METHODS: This was a cross-sectional study. The study was conducted at a single centre, the university research laboratory. Twenty female university athletes with low back pain or a history of low back pain and 20 without low back pain participated in this study. The shear elastic moduli of the multifidus and erector spinae muscles were evaluated in the prone (to relax the muscles) and sitting with 35° of trunk flexion (to stretch the muscles) positions using shear wave ultrasound imaging equipment. FINDINGS: The low back pain group showed significantly greater shear elastic modulus in the multifidus in both prone and sitting positions than the non-low back pain group. There were no differences in the erector spinae muscle between the two groups at either position. INTERPRETATION: These results provide new insights into the microscopic characteristics of low back pain pathophysiology in young female athletes. Stiffness assessment using shear wave elastography will help provide a specific treatment strategy for female athletes with low back pain or a history of low back pain.
Cross-cultural adaptation, validity, reliability and responsiveness of the Japanese version of the Victorian Institute of sports assessment for patellar tendinopathy (VISA-P-J). 国際誌査読有り

Ishin Togashi, Masashi Nagao, Hirofumi Nishio, Shojiro Nozu, Yuki Shiota, Yuji Takazawa

BMC sports science, medicine & rehabilitation　15　(1)　5-5　2023年1月11日

DOI： 10.1186/s13102-023-00615-5 　

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BACKGROUND: This study aimed to translate, adapt, and test the psychometric properties of the Japanese version of the Victorian Institute of sports assessment for patellar tendinopathy (VISA-P-J). METHODS: This prospective cohort study registered 43 participants ≥ 18 years old with a history of painful symptoms in the inferior pole of the patella to the proximal patellar tendon lasting ≥ 1 month for patellar tendinopathy. Pain in daily life and during sports activities, symptom classification, and patient global impression of change were assessed at the baseline, 1 week, and 12 weeks. The psychometric properties, test-retest reliability, standard error of measurement, internal consistency criterion validity, construct validity, responsiveness, and interpretability, of the VISA-P-J were calculated according to the COSMIN. RESULTS: The two-way random-effects, absolute agreement intraclass correlation coefficient for test-retest reliability of VISA-P-J was 0.87 (95% confidence interval: 0.78, 0.93), and the standard error of measurement of VISA-P-J was 0.89. The Cronbach's alpha for internal consistency of VISA-P-J was 0.81. A correlation between VISA-P-J and Roel's classification, Visual Analog Scale for pain (VAS)-Active Daily Living, and VAS-Sports (r = - 0.52, r = - 0.66, r = - 0.86, p < 0.01, respectively) was observed for criterion validity. All hypotheses of the hypothesis-testing method to evaluate construct validity and responsiveness of VISA-P-J were substantiated. The minimal clinically important difference of VISA-P-J was 7 points. CONCLUSION: We demonstrated that the VISA-P-J was a reliable, valid, and responsive assessment method for individuals with chronic pain in the patellar tendon.
Effect of Isokinetic Training with Blood Flow Restriction During Rest Interval Versus Exercise on Muscle Strength, Hypertrophy, and Perception: A Pilot Study

TSUKASA TANAKA, ATSUSHI KUBOTA, HAYAO OZAKI, HIROFUMI NISHIO, SHOJIRO NOZU, YUJI TAKAZAWA

Juntendo Medical Journal　69　(6)　477-484　2023年
出版者・発行元： The Jutendo Medical Journal
DOI： 10.14789/jmj.jmj23-0014-oa 　

ISSN：2187-9737

eISSN：2188-2126

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OBJECTIVES: This study aimed to determine the effects of high-intensity isokinetic training with blood flow restriction during rest interval between set (rBFR) versus during exercise (eBFR) on muscle hypertrophy and increasing muscle strength and determine whether BFR-induced exercise pain is suppressed by rBFR. MATERIALS AND METHODS: Fourteen arms (7 participants) were recruited for the study. We conducted the following interventions for each arm: eBFR (n=4), rBFR (n=5), and exercise only (CON, n=5). The participants performed elbow flexion training with a BIODEX device twice weekly for 8 weeks. This study training consisted of total four sets; each was performed until <50% peak torque was achieved twice consecutively. BFR pressure was set at 120 mmHg. Elbow flexor peak torque during concentric contraction (CC), isometric contraction (IM), and muscle cross-sectional area (CSA) were measured before and after the intervention. Numerical rating scale scores used to assess pain during exercise were determined during training. RESULTS: Peak torque at the CC increased in the rBFR (p<0.05) and IM increased in the rBFR and CON (p<0.05), while CSA increased in the rBFR and CON (p<0.001). The pain during exercise was severe in the eBFR and moderate in the rBFR and CON. CONCLUSIONS: This study's showed that high-intensity isokinetic training with rBFR did not have a synergistic effect on increasing muscle strength and muscle size. Additionally, high-intensity isokinetic training with BFR when it may be best not to perform it during exercise, because it was induces severe pain and may inhibit increases in muscle strength.
The Accuracy of Ankle Eccentric Torque Control Explains Dynamic Postural Control During the Y-Balance Test. 国際誌査読有り

Shojiro Nozu, Kristin A Johnson, Tsukasa Tanaka, Mika Inoue, Hirofumi Nishio, Yuji Takazawa

International journal of sports physical therapy　18　(5)　1113-1122　2023年

DOI： 10.26603/001c.87760 　

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BACKGROUND: The Y-Balance Test (YBT), especially the posteromedial (PM) reach direction (PM-YBT), is able to identify dynamic postural control deficits in those who have ankle instability. However, there still exists a need to understand how sensorimotor function at the ankle explains the performance during the PM-YBT. HYPOTHESIS/PURPOSE: The purpose of this study was to determine whether the ability to accurately control eccentric ankle torque explained PM-YBT performance. It was hypothesized that eccentric dorsiflexion/plantarflexion torque control would be positively related to the maximum reach distance (MRD) of PM-YBT. STUDY DESIGN: Cross-sectional study. METHODS: Twelve healthy subjects performed the PM-YBT, maximum voluntary isometric contractions (MVIC) for both dorsiflexion and plantarflexion muscle strength, and then the torque control testing of the ankle. The torque control testing provided a target torque level on a screen in front of the subject and passive rotations of the ankle joint in the sagittal plane at 10 deg/sec between plantarflexion to dorsiflexion. Subjects were then instructed to eccentrically contract the dorsiflexors and plantar flexors to generate torque while the ankle joint rotated. The accuracy of torque control during eccentric dorsiflexion and plantarflexion by calculating absolute errors, the area between the target torque and the produced torque were evaluated. Tibialis anterior and soleus muscle activities were simultaneously recorded during testing. A step-wise linear regression model was used to determine the best model predicted the MRD of the PM-YBT (PM-MRD). RESULTS: A step-wise linear regression developed a model explaining only eccentric dorsiflexion torque control predicted higher PM-MRD score (R2 = 44%, F1,10 = 7.94, β = -0.67, p = 0.02). CONCLUSION: The accuracy of torque control during eccentric dorsiflexion predicts better performance in the PM-YBT. LEVEL OF EVIDENCE: 3b.
トレーニングと血流制限を分けた血流制限トレーニングが筋肥大および筋力向上効果に及ぼす影響

田中吏, 窪田敦之, 尾崎隼朗, 野津将時郎, 西尾啓史, 高澤祐治

日本トレーニング科学会　35回　63-63　2022年12月
出版者・発行元：日本トレーニング科学会
日本語版The Victorian Institute of Sport Assessment Scale for Patellar Tendinopathy(VISA-P)の妥当性・信頼性の検証

富樫維親, 長尾雅史, 西尾啓史, 野津将時郎, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S214-S214　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
ラグビーにおけるコンタクトプレーによる負荷と外傷・障害発生との関係

岩崎裕介, 塩田有規, 長尾雅史, 染谷由希, 野津将時郎, 佐伯悠里香, 河瀬麻希, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S270-S270　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
常圧低酸素環境下における運動中の血中酸素飽和度に対する酸素水摂取の影響

井澤秀典, 長尾雅史, 野津将時郎, 塩田有規, 深尾宏祐, 西尾啓史, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S336-S336　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
日本語版The Victorian Institute of Sport Assessment Scale for Patellar Tendinopathy(VISA-P)の妥当性・信頼性の検証

富樫維親, 長尾雅史, 西尾啓史, 野津将時郎, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S214-S214　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
国内エリートサッカー選手における主観的疲労度および運動負荷量と外傷・障害発生との関係

河瀬麻希, 染谷由希, 岩崎裕介, 佐伯悠里香, 野津将時郎, 秋吉直樹, 小林洋平, 長尾雅史, 齋田良知, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S238-S238　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
ラグビーにおけるコンタクトプレーによる負荷と外傷・障害発生との関係

岩崎裕介, 塩田有規, 長尾雅史, 染谷由希, 野津将時郎, 佐伯悠里香, 河瀬麻希, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S270-S270　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
第24回夏季デフリンピック競技大会(ブラジル)における医学サポート

塩田有規, 染谷咲子, 野津将時郎, 小松孝行, 立石智彦, 薬師寺道代, 鈴木大地, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S285-S285　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
常圧低酸素環境下における運動中の血中酸素飽和度に対する酸素水摂取の影響

井澤秀典, 長尾雅史, 野津将時郎, 塩田有規, 深尾宏祐, 西尾啓史, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S336-S336　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
国内エリートサッカー選手における主観的疲労度および運動負荷量と外傷・障害発生との関係

河瀬麻希, 染谷由希, 岩崎裕介, 佐伯悠里香, 野津将時郎, 秋吉直樹, 小林洋平, 長尾雅史, 齋田良知, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　30　(4)　S238-S238　2022年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159
Effect of low-intensity exercise with blood flow restriction during rest intervals on muscle function and perception. 国際誌

Tsukasa Tanaka, Atsushi Kubota, Shojiro Nozu, Hayao Ozaki, Kohei Kishimoto, Hirofumi Nishio, Yuji Takazawa

Clinical physiology and functional imaging　42　(5)　348-355　2022年9月

DOI： 10.1111/cpf.12775 　

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PURPOSE: We assessed the effects of low-intensity exercise with blood flow restriction (BFR) during rest intervals on recovery of muscle function and pain during exercise and rest intervals. METHODS: Participants were 10 males and study arms of the participants were randomly assigned into three conditions; low-intensity exercise with BFR during rest intervals (rBFR), low-intensity exercise with BFR during exercise (eBFR) and low-intensity exercise only (EO). The exercise task was elbow flexion until repetition failure at 30% of 1 RM and cuff pressure was 120 mmHg. The maximum voluntary isometric contraction (MVIC) and the muscle endurance (ME) were measured pre, post, 1, 24 and 48 h after the exercise. Pain during exercise and rest intervals were evaluated using the Numerical Rating Scale. RESULTS: MVIC and ME significantly decreased after exercise in all conditions. Pain during exercise was lower in rBFR (4.2 ± 2.9) (p = 0.007) and EO (4.4 ± 2.7) (p = 0.014) conditions compared to eBFR condition (6.7 ± 1.7), but the pain during rest intervals was more intense in rBFR condition (5.2 ± 1.6) compared to eBFR (1.5 ± 1.4) and EO (1.7 ± 1.2) conditions (p < 0.001). CONCLUSION: We discovered that recovery of muscle function was the same as BFR during rest intervals and BFR during exercise. Also, our results suggested that BFR itself may cause the perception of pain. Future studies are thus required to investigate the optimal dosage focusing on the pressure volume and intensity used in BFR during intervals.
常圧低酸素条件下で運動中の血液酸素飽和度に対する高濃度酸素水摂取の影響無作為化プラセボ対照単盲検試験(Effects of Drinking Oxygenated Water on Blood Oxygen Saturation During Exercise Under Normobaric Hypoxic Conditions: A Randomized Placebo-controlled Single-blinded Trial)

Izawa Hidenori, Nagao Masashi, Nozu Shojiro, Shiota Yuki, Fukao Kosuke, Nishio Hirofumi, Takazawa Yuji

順天堂醫事雑誌　68　(3)　228-234　2022年6月
出版者・発行元：順天堂医学会
ISSN：2187-9737

eISSN：2188-2126

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健常成人22名(男性16名、女性6名、平均22.4±2.73歳)を無作為にOX群と対照群に分け、常圧低酸素条件下(酸素濃度15.2%)で30分間の歩行運動を行わせた。運動中に血液酸素飽和度(SpO2)、脈拍(PR)および歩行距離を測定した。運動前および運動中にOX群に酸素化ミネラルウォーター(高濃度酸素水)、対照群に通常のミネラルウォーターを摂取させた。両群において運動中にSpO2は低下、PRは上昇した。OX群のSpO2低下は対照群と比べて小さく、PR上昇は大きかった。両群の歩行距離に有意差はなかった。以上の結果から、常圧低酸素条件下で運動前の高濃度酸素水摂取はSpO2の低下を抑制すると考えられた。
Kinetic and Kinematic Analyses of Countermovement Jump in a Small Sample of Individuals with Congenital Vision Loss. 国際誌

Masaki Iguchi, Shojiro Nozu, Toru Sakuma

Perceptual and motor skills　315125211073024-315125211073024　2022年3月3日

DOI： 10.1177/00315125211073024 　

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In the present study, we aimed to explore whether countermovement jumps (CMJs) performed by young adults with and without visual impairment (VI) differ. We compared three participants with congenital VI to 10 participants without congenital VI when both groups performed CMJs with maximum effort. Although the maximum jump height did not differ between groups, all three participants with VI showed such reduced maximum downward velocity of the center of body mass and a relative net negative vertical impulse that, on these measures, they fell beyond two standard deviations from the mean scores of participants without VI. The range of motion for the leg joints and countermovement depth did not differ between groups. Although findings from our small sample should be cross-validated and trainers should take care to protect athletes from falls, it appears from our preliminary data that a path to improved CMJ performance for athletes with VI is to increase their movement velocity in the countermovement phase of the jump.
Trunk Angle Modulates Feedforward and Feedback Control during Single-Limb Squatting. 国際誌査読有り

Kristin A Johnson, Shojiro Nozu, Richard K Shields

Journal of functional morphology and kinesiology　6　(4)　2021年10月7日

DOI： 10.3390/jfmk6040082 　

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Trunk positioning and unexpected perturbations are high-risk conditions at the time of anterior cruciate ligament injury. The influence of trunk positioning on motor control responses to perturbation during dynamic performance is not known. We tested the influence of trunk position on feedforward and feedback control during unexpected perturbations while performing a novel single-limb squatting task. We also assessed the degree that feedforward control was predictive of feedback responses. In the flexed trunk condition, there were increased quadriceps (p < 0.026) and gluteus medius long-latency reflexes (p < 0.001) and greater quadriceps-to-hamstrings co-contraction during feedforward (p = 0.017) and feedback (p = 0.007) time bins. Soleus long-latency reflexes increased more than 100% from feedforward muscle activity regardless of trunk condition. Feedforward muscle activity differentially predicted long-latency reflex responses depending on the muscle (R2: 0.47-0.97). These findings support the concept that trunk positioning influences motor control responses to perturbation and that feedback responses may be invariant to the feedforward control strategy.
大学生における新型コロナウィルス(COVID-19)感染拡大に伴う生活の変化が睡眠に及ぼす影響

西嶋佳太, 西尾啓史, 田中吏, 富樫維親, 野津将時郎, 窪田敦之, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　29　(4)　S155-S155　2021年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
大学生アスリートは片脚で40cmの高さから立ち上がれるのか?

田中吏, 窪田敦之, 藤田真平, 西尾啓史, 長尾雅史, 野津将時郎, 塩田有規, 高澤祐治, 桜庭景植

日本臨床スポーツ医学会誌　29　(4)　S180-S180　2021年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
剣道における"構え"とアキレス腱傷害の関連性について

安井飛鳥, 西尾啓史, 田中吏, 富樫維親, 野津将時郎, 窪田敦之, 塩田有規, 高澤祐治

日本臨床スポーツ医学会誌　29　(4)　S181-S181　2021年10月
出版者・発行元： (一社)日本臨床スポーツ医学会
ISSN：1346-4159

eISSN：2758-3767
Disrupted somatosensory input alters postural control strategies during the Star Excursion Balance Test (SEBT) in healthy people 査読有り

Shojiro Nozu, Kristin A. Johnson, Masahiro Takemura, Richard K. Shields

Gait & Posture　90　141-147　2021年10月
出版者・発行元： Elsevier BV
DOI： 10.1016/j.gaitpost.2021.08.023 　

ISSN：0966-6362
Assessments of Sensorimotor Deficits Used in Randomized Clinical Trials With Individuals With Ankle Sprains and Chronic Ankle Instability: A Scoping Review 査読有り

Shojiro Nozu, Masahiro Takemura, Gisela Sole

PM&R　2020年11月23日
出版者・発行元： Wiley
DOI： 10.1002/pmrj.12487 　

ISSN：1934-1482

eISSN：1934-1563
Star Excursion Balance Testのリーチ距離と体幹傾斜角度および足関節柔軟性の関係査読有り

野津将時郎, 竹村雅裕, 宮川俊平

体力科学　69　(3)　279-284　2020年6月1日
出版者・発行元：
DOI： 10.7600/jspfsm.69.279 　

ISSN：0039-906X

eISSN：1881-4751
車いすバスケットボール選手のメディカルサポートと鍼灸あん摩マッサージ指圧に関するアンケート調査査読有り

櫻庭陽, 近藤宏, 佐久間亨, 中村直子, 松井康, 野津将時郎, 福永克己, 渡邊昌宏, 木下裕光, 石塚和重

日本障害者スポーツ学会誌　27　(27)　30-35　2019年1月
出版者・発行元：日本障害者スポーツ学会
ISSN：1881-8218

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MISC 1

長距離ランナーにおける足部アーチ形態と地面反力の関係性について

入口海, 入口海, 野津将時郎, 野津将時郎, 富樫維親, 富樫維親, 富樫維親, 青柳壮志, 青柳壮志, 内野小百合, 高澤祐治, 高澤祐治, 高澤祐治, 高澤祐治

ランニング学会大会　37th　2025年

講演・口頭発表等 10

Postural Control Strategies between Individuals with/without Chronic Ankle Instability during the Star Excursion Balance Test

Shojiro Nozu, Tadamitsu Matsuda, Yuji Takazawa

10th International Ankle Symposium 2024　2024年10月4日
Effect of limited dorsiflexion range of motion on the outcome of the clinical balance test in individuals with chronic ankle instability

Shojiro Nozu, Tadamitsu Matsuda, Yuji Takazawa

World Congress of Sports Physical Therapy 2024　2024年6月14日
Relationship between dynamic postural control ability and the accuracy of eccentric force control at the ankle

NOZU Shojiro, TANAKA Tsukasa, INOUE Mika, NISHIO Hirofumi, TAKAZAWA Yuji

4th Congress, International Academy of Sportology　2024年6月1日
Comparison of Sensorimotor Control Strategies between Individuals with/without Chronic Ankle Instability during the Star Excursion Balance Test

2023 ASICS SMA Conference
THE ACCURACY OF FORCE CONTROL WHILE ANKLE MUSCLE IS LENGTHENING EXPLAINS DYNAMIC BALANCE ABILITY ASSESSED BY A CLINICAL TEST

The World Physiotherapy Congress 2023
KINETIC CHARACTERISTICS DURING THE SIDE HOP TEST IN ATHLETES WITH CHRONIC ANKLE INSTABILITY

ONO K, NOZU S, YOSHIDA T, TANIGAWA S

The 27th Annual Congress of the European College of Sport Science　2022年8月30日
Effects of 448 kHz capacitive resistive monopolar radiofrequency of the lumbar region on muscle tissue elasticity

Taiki Saito, Takayuki Miyamori, Yu Shimasaki, Shojiro Nozu, Masafumi Yoshimura

The World Congress of Sports Physical Therapy 2022　2022年8月26日
Simulated Unstable Ankle Alters Postural Control Strategy during the Star Excursion Balance Test

Nozu S, Johnson KA, Takazawa Y, Shields RK

APTA Combined Sections Meeting　2022年2月4日
LOWER LIMB KINETIC CHARACTERISTICS OF THE SIDE-HOP TEST IN HEALTHY INDIVIDUALS

Kyoya Ono, Shojiro Nozu, Takuya Yoshida, Hirohiko Maemura, Satoru Tanigawa

International Society of Biomechanics in Sports (ISBS) Conference 2021　2021年9月3日
Lower Extremity Joint Moments During Posteromedial reach of the Star Excursion Balance Test in Healthy People

Shojiro Nozu, Kristin A. Johnson, Richard K. Shields

The International Society of Electrophysiology and Kinesiology (ISEK) Virtual Congress 2020　2020年7月12日

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共同研究・競争的資金等の研究課題 2

足関節捻挫再発防止のエビデンス構築ー姿勢制御障害に対する介入への挑戦ー

野津将時郎

2022年4月1日～ 2027年3月31日
足関節捻挫既往者における姿勢制御不全機構の解明ー根拠ある介入法樹立を目指してー

野津将時郎

2021年8月30日～ 2023年3月31日

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本研究は、足関節捻挫リハビリテーションのため、バイオメカニクス解析による臨床テスト（Star Excursion Balance Test：SEBT）を用いた姿勢制御不全機構の解明を目的としている。本研究により、足関節捻挫後の姿勢制御不全機序を量的（SEBTリーチ距離）および質的（動作特徴）に解釈できることを世界で初めて立証するという成果を得ることができる。両解釈による足関節捻挫後の姿勢制御不全に対する新評価法を樹立し、また新評価法での測定結果に基づいた臨床的介入法の立案が学術的創造性となる。足関節捻挫再発予防プログラム開発への発展が学術的波及性となり、リハビリテーション領域の課題である「足関節捻挫再発予防」と足関節捻挫既往者のQOL向上に役立つことが社会的波及性となる。本研究実施計画と実施状況は以下の通りである。目標１）バイオメカニクス測定法の確立：SEBT実施時のバイオメカニクス変数を統合的に解析するためのプログラム作成、実験手順を構築する。（完了）目標２）足関節捻挫既往者の身体重心制御の特徴を解明する：足関節捻挫群と健常群のキネマティクスデータを比較し、仮説である足関節運動と身体重心位置が異なっていることを検証する。（現在解析中、足関節捻挫群のサンプル数が少ないため実験継続中）目標３）バイオメカニクス変数の統合的解釈：キネマティクスデータ以外のバイオメカニクス変数に関して、探索的な解析を行い、足関節捻挫既往者における姿勢制御の機序を包括的に解明する。（現在解析中）