Curriculum Vitaes
Profile Information
- Affiliation
- Professor Emeritus, School of Medicine, Fujita Health University
- Degree
- DMSc(Keio University)
- J-GLOBAL ID
- 200901019328012929
- researchmap Member ID
- 1000228177
Physiatrist since 1985
President, Fujita Health University Nanakuri Memorial Hospital since 2003
President, Fujita Health University Nanakuri Memorial Hospital since 2003
Research Interests
4Research Areas
1Research History
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Apr, 2024 - Present
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Dec, 2000 - Mar, 2024
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Apr, 2000 - Nov, 2000
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Apr, 1985 - Mar, 2000
Education
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Apr, 1979 - Mar, 1985
Papers
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Japanese Journal of Comprehensive Rehabilitation Science, 15 42-48, Oct 16, 2024
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JMIR formative research, 8 e51546, May 29, 2024BACKGROUND: Motor impairments not only lead to a significant reduction in patient activity levels but also trigger a further deterioration in motor function due to deconditioning, which is an issue that is particularly pronounced during hospitalization. This deconditioning can be countered by sustaining appropriate activity levels. Activities that occur outside of scheduled programs, often overlooked, are critical in this context. Wearable technology, such as smart clothing, provides a means to monitor these activities. OBJECTIVE: This study aimed to observe activity levels in patients who had strokes during the subacute phase, focusing on both scheduled training sessions and other nontraining times in an inpatient rehabilitation environment. A smart clothing system is used to simultaneously measure heart rate and acceleration, offering insights into both the amount and intensity of the physical activity. METHODS: In this preliminary cohort study, 11 individuals undergoing subacute stroke rehabilitation were enrolled. The 48-hour continuous measurement system, deployed at admission and reassessed 4 weeks later, monitored accelerometry data for physical activity (quantified with a moving SD of acceleration [MSDA]) and heart rate for intensity (quantified with percent heart rate reserve). The measurements were performed using a wearable activity monitoring system, the hitoe (NTT Corporation and Toray Industries, Inc) system comprising a measuring garment (wear or strap) with integrated electrodes, a data transmitter, and a smartphone. The Functional Independence Measure was used to assess the patients' daily activity levels. This study explored factors such as differences in activity during training and nontraining periods, correlations with activities of daily living (ADLs) and age, and changes observed after 4 weeks. RESULTS: A significant increase was found in the daily total MSDA after the 4-week program, with the average percent heart rate reserve remaining consistent. Physical activity during training positively correlated with ADL levels both at admission (ρ=0.86, P<.001) and 4 weeks post admission (ρ=0.96, P<.001), whereas the correlation between age and MSDA was not significant during training periods at admission (ρ=-0.41, P=.21) or 4 weeks post admission (ρ=-0.25, P=.45). Conversely, nontraining activity showed a negative correlation with age, with significant negative correlations with age at admission (ρ=-0.82, P=.002) and 4 weeks post admission (ρ=-0.73, P=.01). CONCLUSIONS: Inpatient rehabilitation activity levels were positively correlated with ADL levels. Further analysis revealed a strong positive correlation between scheduled training activities and ADL levels, whereas nontraining activities showed no such correlation. Instead, a negative correlation between nontraining activities and age was observed. These observations suggest the importance of providing activity opportunities for older patients, while it may also suggest the need for adjusting the activity amount to accommodate the potentially limited fitness levels of this demographic. Future studies with larger patient groups are warranted to validate and further elucidate these findings.
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International journal of rehabilitation research. Internationale Zeitschrift fur Rehabilitationsforschung. Revue internationale de recherches de readaptation, Apr 9, 2024Practicing walking in a safety suspension device allows patients to move freely and without excessive reliance on a therapist, which requires correcting errors and may facilitate motor learning. This opens the possibility that patients with subacute stroke may improve their walking ability more rapidly. Therefore, we tested the hypothesis that overground gait training in a safety suspension device will result in achieving faster supervision-level walking than gait training without the suspension device. Twenty-seven patients with stroke admitted to the rehabilitation ward with functional ambulation categories (FAC) score of 2 at admission were randomly allocated to safety suspension-device group (SS group) or conventional assisted-gait training group (control group). In addition to regular physical therapy, each group underwent additional gait training for 60 min a day, 5 days a week for 4 weeks. We counted the days until reaching a FAC score of 3 and assessed the probability using Cox regression models. The median days required to reach a FAC score of 3 were 7 days for the SS group and 17.5 days for the control group, which was significantly different between the groups (P < 0.05). The SS group had a higher probability of reaching a FAC score of 3 after adjusting for age and admission motor impairment (hazard ratio = 3.61, 95% confidence interval = 1.40-9.33, P < 0.01). The gait training with a safety suspension device accelerates reaching the supervision-level walking during inpatient rehabilitation. We speculate that a safety suspension device facilitated learning by allowing errors to be experienced and correct in a safe environment.
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JMIR formative research, 7 e42219, Feb 8, 2023BACKGROUND: There is an extensive library of language tests, each with excellent psychometric properties; however, many of the tests available take considerable administration time, possibly bearing psychological strain on patients. The Short and Tailored Evaluation of Language Ability (STELA) is a simplified, tablet-based language ability assessment system developed to address this issue, with a reduced number of items and automated testing process. OBJECTIVE: The aim of this paper is to assess the administration time, internal consistency, and validity of the STELA. METHODS: The STELA consists of a tablet app, a microphone, and an input keypad for clinician's use. The system is designed to assess language ability with 52 questions grouped into 2 comprehension modalities (auditory comprehension and reading comprehension) and 3 expression modalities (naming and sentence formation, repetition, and reading aloud). Performance in each modality was scored as the correct answer rate (0-100), and overall performance expressed as the sum of modality scores (out of 500 points). RESULTS: The time taken to complete the STELA was significantly less than the time for the WAB (mean 16.2, SD 9.4 vs mean 149.3, SD 64.1 minutes; P<.001). The STELA's total score was strongly correlated with the WAB Aphasia Quotient (r=0.93, P<.001), supporting the former's concurrent validity concerning the WAB, which is a gold-standard aphasia assessment. Strong correlations were also observed at the subscale level; STELA auditory comprehension versus WAB auditory comprehension (r=0.75, P<.001), STELA repetition versus WAB repetition (r=0.96, P<.001), STELA naming and sentence formation versus WAB naming and word finding (r=0.81, P<.001), and the sum of STELA reading comprehension or reading aloud versus WAB reading (r=0.82, P<.001). Cronbach α obtained for each modality was .862 for auditory comprehension, .872 for reading comprehension, .902 for naming and sentence formation, .787 for repetition, and .892 for reading aloud. Global Cronbach α was .961. The average of the values of item-total correlation to each subscale was 0.61 (SD 0.17). CONCLUSIONS: Our study confirmed significant time reduction in the assessment of language ability and provided evidence for good internal consistency and validity of the STELA tablet-based aphasia assessment system.
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Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, 29(1) 95-97, Jan, 2023Healthcare-associated COVID-19 among vulnerable patients leads to disproportionate morbidity and mortality. Early pharmacologic intervention may reduce negative sequelae and improve survival in such settings. This study aimed to describe outcome of patients with healthcare-associated COVID-19 who received early short-course remdesivir therapy. We reviewed the characteristics and outcome of hospitalized patients who developed COVID-19 during an outbreak that involved two wards at a non-acute care hospital in Japan and received short-course remdesivir. Forty-nine patients were diagnosed with COVID-19, 34 on a comprehensive inpatient rehabilitation ward and 15 on a combined palliative care and internal medicine ward. Forty-seven were symptomatic and 46 of them received remdesivir. The median age was 75, and the median Charlson comorbidity index was 6 among those who received it. Forty-one patients had received one or two doses of mRNA vaccines, while none had received a third dose. Most patients received 3 days of remdesivir. Of the patients followed up to 14 and 28 days from onset, 41/44 (95.3%) and 35/41(85.4%) were alive, respectively. Six deaths occurred by 28 days in the palliative care/internal medicine ward and two of them were possibly related to COVID-19. Among those who survived, the performance status was unchanged between the time of onset and at 28 days.
Misc.
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 38(1) 61-61, Jan 18, 2001
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 37(11) 836-836, Nov 18, 2000
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 37(11) 836-836, Nov 18, 2000
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49(8) 1134-1139, Aug 25, 2000
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 36(11) 865-865, Nov 18, 1999
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 36(9) 622-622, Sep 18, 1999
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The Japanese Journal of Rehabilitation Medicine, 36(4) 246-254, Apr 18, 1999Pathophysiology of sound localization in stroke patients is reviewed. The mechanism of sound localization in humans has been eagerly studied and was explained at first as internaural time difference (ITD) or internaural intensity (pressure) difference (IID). Then the concept of a sound transfer function was introduced and a three dimensional system for testing using a headphone became available. Now, three test methods are utilized: speaker method, headphone method with ITD or IID, or headphone method with transfer function. The majority of the studies found disturbance of sound localization in stroke patients. Stroke patients having either a right or left hemispheric lesion less accurately identified the direction of sound than healthy subjects. In some studies, patients showed a systematic (relative) error in discrimination of direction. The term "systematic error" is used when the answered direction consistently deviated to one direction, clockwise or counterclockwise. Clockwise systematic deviation was frequently encountered in patients with a right hemispheric lesion. This phenomenon is closely related to hemispatial visual neglect. Disturbance of sound localization in stroke patients seems to be composed of two elements. The first cause is decreased accuracy of discrimination of direction. This phenomenon can be brought about by damage in either the right or left side of the brain. The second element is a systematic error that may be one expression of symptoms of hemispatial neglect. In clinical situations, a patient may manifest both elements, or possibly only one of the two elements. Higher cortical function concerning sound localization is not fully understood now. Further research may build a comprehensive theory for hemispatial neglect, including sound localization.
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The Japanese Journal of Rehabilitation Medicine, 36(3) 162-165, Mar 18, 1999
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 35(12) 1061-1061, Dec 18, 1998
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The Japanese Journal of Rehabilitation Medicine, 35(11) 744-747, Nov 18, 1998The validity of the motor and sensory items of the Stroke Impairment Assessment Set (SIAS) was examined. Subjects were 175 stroke patients with hemiplegia. To validate Knee-mouth test and Knee-extension test, the times of 10 repetitions of elbow flexion and extension in both affected and unaffected sides were measured in patients with a score of more than 3 on the Knee-mouth test in SIAS. The measurement of the times for 10 repetitions of knee flexion and extension was in the same manner. Then we caluculated unaffected-affected time ratio, respectively. To validate the sensory items of the SIAS, the unaffected knee angle that patients demonstrated for simulation of an affected knee angle passively positioned at 45 and 90 deg. were measured. The absolute value of the angle of difference between affected and unaffected side was calculated. Knee-mouth test was correlated to the unaffected/affected time ratio for 10 repetitions by the elbow (γ=0.836). Knee-extension test was also correlated (γ=0.817). On sensory test, the higher the score of the position test in SIAS, the smaller the error of the knee angle. In conclusion, these results provided increased evidence of the validity of the motor and sensory items of the SIAS.
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The Japanese Journal of Rehabilitation Medicine, 35(9) 641-644, Sep 18, 1998Reliability of the headphone sound localization test using the RSS-10 sound processor was examined in 15 healthy subjects without hearing difficulty. First, white noise and female voice were presented 3 times, respectively, in front of the subjects, and 30, 60, and 90 degrees toward the left or right. All sounds were clearly located extracranially in all subjects. Discrepancies between presented and answered angle of the sound direction were an average of 12 degrees per trial (SD=9, range 5-18 degrees) with white noise and an average of 11 degrees per trial (SD=8, range 1-19 degrees) for the female voice. Secondly, white noise was moved from one side to the other side within a period of 10 sec, drawing an arc in front of the subject. The average angle at which the subject felt that the sound reached midline was actually 11.1 degrees toward left when the movement was initiated from the left and 3.4 degrees toward the right when the movement was initiated from the right. Sound localization test using RSS-10 is sufficiently reliable for clinical use.
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The Japanese Journal of Rehabilitation Medicine, 35(8) 527-529, Aug 18, 1998
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The Japanese Journal of Rehabilitation Medicine, 35(6) 419-426, Jun 18, 1998Long latency responses (LLR) were measured in stroke patients with spastic hemiplegia. Surface electromyograms of bilateral anterior tibial muscles (TA) were recorded after toe-up perturbation from 0 to 8 deg at a speed of 20 deg/sec. Five responses were averaged for perturbation of bilateral, hemiparetic, and non-paretic ankles, respectively. Latencies and amplitudes of LLR were compared to the Stroke Impairment Asssessment Set. Latencies of LLR recorded from paretic TA in response to bilateral perturbation were closely correlated with motor and sensory items (γ=-0.76, γ=-0.91). Unilateral stimulation could not evoke LLR in patients with severe motor and/or sensory disturbance. The latencies of LLR from non-paretic side by paretic ankle perturbation were delayed in parallel with the degree of sensory disturbance (γ=-0.74, γ=-0.60). Since LLR from non-paretic side evoked by non-paretic perturbation were diminished, the bilateral projection and/or information processing responsible for LLR were hyposthesized. LLR may be useful to monitor motor and sensory recovery in stroke patients as an adjunct to routine clinical evaluation.
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作業療法 = The Journal of Japanese Occupational Therapy Association, 17 151-151, May 15, 1998
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The Japanese Journal of Rehabilitation Medicine, 35(4) 241-244, Apr 18, 1998The object of this research was to study how to detect most effectively electromyogram (EMG) of suprahyoid muscles during swallowing. The position of recording electrodes on suprahyoid muscles during deglutition has been investigated in 6 healthy men. The EMG of suprahyoid muscles was detected by 4 methods designated as submental, submaxillary, lateral and hyoidal recording at full bite, tongue elevation in 2 seconds and water 3 ml swallowing. The EMG area recorded by each method was divided by recording time (ms) and by inter-electrode distance (3-10cm). This parameter was called area/cm (μV・s/cm). The area/cm from the submental recording was about twice that from the other 3 methods at tongue elevation and water swallowing. It was concluded that the submental recording could detect the EMG of suprahyoid muscles most effectively and this method might be applicable to a biofeedback training in the rehabilitation for swallowing disorders.
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 34(12) 932-932, Dec 18, 1997
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The Japanese Journal of Rehabilitation Medicine, 34(5) 332-336, May 18, 1997The purpose of this study was to assess bone metabolism in hemiplegic patients. The bone resorption markers-urinary pyridinoline (Pyr) and deoxypyridinoline (D-Pyr), the bone formation markers-plasma osteocalcine (OC) and alkaline phosphatase (ALP), and the bone mineral density of the proximal humerus of the affected side were measured by Dual Energy X-ray Absorptiometry in 76 patients with the first stroke episode. These parameters in 68 out of 76 patients were measured again three months later. These bone resorption markers in all patients denoted at low levels about one year after the stroke. The resorption markers have not elevated at all in the patient whose grip strength of the affected side was greater than or equal to 5 kg. On the contrary, patients with the strength of less than 5 kg have increased levels of these markers, and their peaks appeared within one year after the stroke. However, the plasma OC and ALP level did not change. The urinary Pyr and D-Pyr, and plasma OC were significantly correlated with the rate of bone losses in the affected proximal humerus (γ=0.430, 0.493 and 0.258, respectively). These results indicate that assessment of bone turnover by biochemical markers can predict the rate of bone loss in the affected limb of stroke patients.
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 34(5) 361-361, May 18, 1997
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作業療法 = The Journal of Japanese Occupational Therapy Association, 16 116-116, May 15, 1997
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Journal of Clinical Rehabilitation, 6(5) 508-512, May, 1997 Peer-reviewed
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The Japanese Journal of Rehabilitation Medicine, 34(3) 230-233, Mar 18, 1997Oculopharyngeal muscular dystrophy (OPMD) is a rare progressive disease characterized by swallowing disturbance and extraocular muscle involvement. The most satisfactory approach for the treatment of this type of dysphagia is cricopharyngeal myotomy. We evaluated a man with OPMD who complained of difficulty swallowing. Defective relaxation of the upper esophageal sphincter and aspiration was observed. We recommended cricopharyngeal myotomy, but he refused it. We used a method of intermittent tube feeding in the management of dysphagia. He could not pass a tube into the esophagus transorally on account of a severe gag reflex and preferred to transnasal placement. He started intermittent naso-esophageal tube feeding, but he sometimes complained of nausea during tube feeding. Videofluoroscopy revealed simultaneous contractions of distal esophageal body during naso-esophageal tube feeding. He could inhibit nausea by the adjustment of drip speed and nasogastric tube feeding caused severe diarrhea. Finally, he selected intermittent naso-esophageal tube feeding and could continue the tube feeding at home by himself. I think that intermittent tube feeding is a useful method for neuromuscular disease if we can take care of esophageal dysfunction.
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 33(12) 987-987, Dec 18, 1996
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 33(11) 820-820, Nov 18, 1996
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 33(11) 855-855, Nov 18, 1996
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 33(11) 849-849, Nov 18, 1996
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リハビリテーション医学 : 日本リハビリテーション医学会誌, 33(9) 641-642, Sep 18, 1996
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The Japanese Journal of Rehabilitation Medicine, 33(8) 549-553, Aug, 1996 Peer-reviewedTo record the displacement of the trunk during gait easily, we placed a portable accelerometer on the subject's back. We examined the reproducibility of the testing and compared it with the measurement of the ground reaction forces with the force plates and our simple motion analysis system using three laser pointers and a video camera. Subjects were five healthy adults and one paraplegic patient. The paraplegic patient whose functional level was T10-11 can walk independently with Lofstrand crutches and a hip-knee-ankle-foot orthosis system with a medial single hip joint (Walkabout^[○!R]). The subjects who were equipped with the accelerometer at the back of the trunk were directed to walk twice on the force plates at a comfortable speed. The test-retest cross-correlation coefficients ranged from 0.46 to 0.94. The cross-correlation coefficients between the accelerograms from the accelerometer placed on the back and the ground reaction forces ranged from 0.73 to 0.93. With the paraplegic patient, we measured the displacement of the trunk during walking with our motion analysis system. When we added the functional electrical stimulation (FES) to the Walkabout^[○!R] system, he could walk faster and the displacement of the trunk in the horizontal plane significantly decreased. The peak-to-peak amplitudes of the accelerographs in the horizontal plane did not differ with or without FES. These results suggest that the gait analysis using a portable accelerometer placed on the back and our motion analysis were valid for clinical use.
Books and Other Publications
4Presentations
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3th Korea-Japan NeuroRehabilitation Conference, 2014
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3th Korea-Japan NeuroRehabilitation Conference, 2014
Professional Memberships
6Research Projects
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科学研究費助成事業, 日本学術振興会, Apr, 2024 - Mar, 2028
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2028
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2016 - Mar, 2019
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2013 - Mar, 2017