A5015595242- Knee injuries and reconstruction techniques
- Osteoarthritis Treatment and Mechanisms
- Total Knee Arthroplasty Outcomes
- Balance, Gait, and Falls Prevention
- Lower Extremity Biomechanics and Pathologies
- Tendon Structure and Treatment
- Muscle activation and electromyography studies
- Stroke Rehabilitation and Recovery
- Cerebral Palsy and Movement Disorders
- Sports injuries and prevention
- Motor Control and Adaptation
- Nerve injury and regeneration
- Foot and Ankle Surgery
- Musculoskeletal pain and rehabilitation
- Diabetic Foot Ulcer Assessment and Management
- Spinal Cord Injury Research
- Neurogenesis and neuroplasticity mechanisms
- Exercise and Physiological Responses
- Adipose Tissue and Metabolism
- Ergonomics and Musculoskeletal Disorders
- Muscle Physiology and Disorders
- Respiratory Support and Mechanisms
- Botulinum Toxin and Related Neurological Disorders
- Estrogen and related hormone effects
- Connective tissue disorders research
Saitama Prefectural University
2016-2025
Fukushima Medical University
2024
Seisa Dohto University
2024
Hokkaido Chitose College of Rehabilitation
2024
Tokyo Women's Medical University
2022
Juntendo University
2022
Hiroshima University
1999-2006
Several foot models have been developed to estimate the behaviors of plantar aponeurosis (PA) during movements. However, these did not consider actual path PA, and their validity remains insufficiently investigated due absence direct PA measurement Would developing a model that considers improve accuracy estimating behavior movements? The was based on CT scans six feet with 20 markers attached. An average created by calculating mean positions 21 landmarks. warped onto motion-captured marker...
ABSTRACT Rheumatoid arthritis is an autoimmune disease characterized by synovitis, reducing the quality of life affected individuals through joint swelling and inflammation. Recently, efficacy exercise therapy has been proposed for rheumatoid arthritis, but its detailed mechanism still unclear. Herein, we used a mouse model human rheumatoid‐arthritis pathology to investigate effects low‐intensity on active arthritis. Twenty‐four SKG mice were divided into three groups: “sedentary,” “AR”...
[Purpose] This study compared the efficacy of passive and active stretching techniques on hamstring flexibility. [Subjects] Fifty-four healthy young subjects were randomly assigned to one three groups (2 treatment 1 control group). [Methods] Subjects in group had their knees extended by an examiner while lying supine 90° hip flexion. In same position, knees. The performed 3 sets stretch, with each stretch held for 10 seconds at point where tightness muscles was felt. did not perform...
Objective: To clarify whether there are any muscle synergy changes in individuals with knee osteoarthritis, and to determine analysis could be applied other musculoskeletal diseases. Methods: Subjects this study included 11 young controls (YC), 10 elderly (EC), osteoarthritis patients (KOA). Gait was assessed on a split-belt treadmill at 3 km/h. A non-negative matrix factorization (NNMF) the electromyogram data extract synergies. assess similarity of each module, we performed NNMF assuming...
Background: Chronic ankle instability (CAI) is a clinical sequela that causes the recurrence of sprain by inducing sensorimotor dysfunction. Animal models CAI have recently shown ligament injuries mimicking an result in chronic loss function. However, underlying mechanisms determining pathogenesis remain unclear. Hypothesis: Ankle after leads to degeneration mechanoreceptors, resulting dysfunction and development CAI. Study Design: Controlled laboratory study. Methods: Four-week-old male...
Background: The poor healing capacity of a completely ruptured anterior cruciate ligament (ACL) has been attributed to an insufficient vascular supply, cellular metabolism, and deficient premature scaffold formation because the unique intra-articular environment. However, previous studies have focused on factors without considering extra-articular factors, including biomechanical aspects ACL-deficient knees. Hypothesis: Changing joint kinematics ACL-ruptured knee will improve biological...
Innervation zone (IZ) has been identified as the origin of action potential propagation in isometric contraction. However, IZ shifts with changes muscle length during activity. The shift estimated using raw EMG signals. This study aimed to investigate movement location continuous dynamic contraction, a computer program. Subjects flexed their elbow joint repetitive contractions. signals were recorded from biceps brachii an eight-channel surface electrode array. Approximately 100 peaks...
Objective Abnormal joint movement is associated with osteoarthritis (OA). Previous studies using the controlling abnormal (CAJM) model of OA reported delayed cartilage degeneration; however, none them focused on gait performance and localization matrix metalloproteinase 13 (MMP13) tissue inhibitor metalloproteinase-1 (TIMP-1) in chondrocytes. Therefore, we aimed to investigate effect MMP13 TIMP-1, kinematic histological analyses. Design Rats were assigned 2 groups: anterior cruciate ligament...
Objective Osteoarthritis (OA) is induced by accumulated mechanical stress to joints; however, little has been reported regarding the cause among detailed on cartilage degeneration. This study investigated influence of control abnormal joint movement anterior cruciate ligament (ACL) injury in articular cartilage. Design The animals were divided into 3 experimental groups: CAJM group ( n = 22: controlling movement), ACL-T ACL transection or knee instability increased), and INTACT 12: no...
Abstract Mechanical stress is involved in the onset of sports‐related enthesopathy. Although amount exercise undertaken a recognized problem during disease onset, changes muscle contraction type are also increase mechanical exercise. This study aimed to clarify effects increased associated with and on enthesis. Twenty mice underwent treadmill exercise, overall load were adjusted by varying angle speed conditions. Histological analysis was used cross‐sectional area muscle; enthesis...
We investigated the effect of position electrodes relative to innervation zone (IZ) biceps brachii muscle during isometric elbow flexion using eight-channel surface array electrodes. estimated location IZ near centre in 20 male subjects. The pulse peaks from electromyogram (EMG) waveforms were detected for each channel and averaged, triphasic was determined, peak values first third phases compared. results showed significantly greater phase when electrode placement proximal IZ, distal IZ....
ObjectiveWe previously reported how treadmill exercise can suppress cartilage degeneration. Here, we examined the changes in macrophage dynamics knee osteoarthritis (OA) during and effect of depletion.DesignOA mouse model, generated via anterior cruciate ligament transection (ACLT), was subjected to different intensities investigate effects on synovium. In addition, clodronate liposomes, which deplete macrophages, were injected intra-articularly into joint examine role macrophages...
[Purpose] Balance training lowers the risk of falling in elderly, but it is not known which specific muscles should be strengthened. The purpose this study was to determine associations between fatigue individual muscle groups lower limbs and balance. [Subjects Methods] We tested 42 21 healthy young adults with no history fractures or bone joint disorders. Groups flexor extensor were fatigued individually by voluntary isometric contraction, effects on balance function analyzed. [Results]...