- Musculoskeletal pain and rehabilitation
- Shoulder Injury and Treatment
- Orthopedic Surgery and Rehabilitation
- Sports injuries and prevention
- Magnetic Properties and Applications
- Microstructure and Mechanical Properties of Steels
- Elbow and Forearm Trauma Treatment
- Muscle activation and electromyography studies
- Shoulder and Clavicle Injuries
- Shape Memory Alloy Transformations
- Tendon Structure and Treatment
- Myofascial pain diagnosis and treatment
- Peripheral Nerve Disorders
- Pregnancy-related medical research
- Balance, Gait, and Falls Prevention
- Hip disorders and treatments
- Mechanical Behavior of Composites
- Structural Load-Bearing Analysis
- Effects of Vibration on Health
- Motor Control and Adaptation
- Body Composition Measurement Techniques
- Microstructure and mechanical properties
- Dental materials and restorations
- Medical research and treatments
- Facial Trauma and Fracture Management
Health Sciences University of Hokkaido
2014-2024
Fukuoka Tokushukai Hospital
2022
St. Luke's International Hospital
2004-2012
Osaka University
2005-2009
Kawasaki Medical School
2002
University of Yamanashi
1997
Takeda (Japan)
1997
Washington University in St. Louis
1997
The iliofemoral, pubofemoral, and ischiofemoral ligaments are major structures that stabilize the hip joint. We have sought evidence on which to base more effective stretching positions. purpose of this study was measure strains these observe them. Eight fresh/frozen translumbar cadaver specimens were used. Clinically available positions for adopted. Strain each ligament measured by a displacement sensor during passive torque Hip motion using an electromagnetic tracking device. strained...
Background.Decreases of strength and speed muscle contraction are considered major causes functional impairments in older people. However, the age-related changes grip force–generating capacity not clear. The purpose this study was to measure parameters explosive force test compare differences between young women.
Pseudoelastic behavior and shape memory effect in D03-ordered Fe–24.4at%Ga single crystals deformed at different temperatures were investigated focusing on the microstructure dislocation configuration. High strain recovery ratios more than 80% could be obtained between −100 100°C. In particular, perfect pseudoelasticity appeared room temperature. During unloading, antiphase boundaries (APB) left behind 1/4‹111› superpartial dislocations pulled back superpartials resulting pseudoelasticity....
Pseudoelastic behaviour of Fe-23.8at%Ga single crystals compressed with different loading axes at room temperature was examined focusing on the activated deformation mode. In crystals, {101}<111> slip and {211}<111> twin were mainly depending axis. depended strongly If operative, sole paired 1/4<111> superpartial dislocations moved dragging antiphase boundaries (APB). During unloading, APB pulled back superpartials due to its tension resulting in pseudoelasticity. contrast, twinning...
Objective: The aim of this study was to elucidate the activities hip flexor muscles during straight leg raising (SLR) in healthy subjects. We also investigated these SLR with deep flexion, abduction, and external rotation. Methods: ten dominant right legs male volunteers were analyzed study. Twelve motion tasks performed; comprised combinations flexion at 30°, 45°, 60°; abduction 0° 20°; rotation 30°. psoas major (PM) iliacus (IL) measured using fine-wire electrodes, whereas rectus femoris,...
As for the surgical treatment of rotator cuff tears, subscapularis tendon tears have recently received much attention mini-open or arthroscopic repair. The results repair tear are satisfactory, but range external rotation is reported to be restricted after purpose this study was evaluate glenohumeral joint motion repairs various sizes tears.Using eight fresh frozen human cadaveric shoulders (mean age at death, 81.5 years), three (small, medium, and large) were made then repaired. With...
Hydroxyapatite (HAp)-20 vol% β-tricalcium phosphate (β-TCP) composites were prepared. The effect of β-TCP size on bone-like layer growth and adhesion osteoblast-like cells the was systematically studied in vitro. When soaked a simulated body fluid, formation rates increased with increasing size, even if volume fraction constant. Moreover, selective dissolution phase around frequently observed. Higher Ca2+ concentration due to fast beneath sample surface resulted faster layer, especially...
Shoulder movements that involve unilateral and bilateral flexion, extension, abduction, asymmetrical flexion-extension cause the activity of trunk muscles. There has not been a fixed consensus on onset deep muscle activities including psoas major (PM), quadratus lumborum (QL), transversus abdominis (TrA), lumbar multifidus (MF) during shoulder movements. The purpose this study was to measure electromyographic muscles rapid clarify coordinated pattern 11 movements.Thirteen men participated in...
Objective The purpose of this study is to investigate the physical changes lower leg muscles in compartment by observing shear wave velocity gastrocnemius, soleus and tibialis anterior with time sitting position for 2 hours after elevation leg. Materials methods subjects were 24 healthy adult males (average age 26.6 years). Shear was measured Aplio 500 immobilized immediately start sitting, 60 minutes 120 sitting. After raised 3 minutes, then again. Results In lateral medial there a...
Background Neck and shoulder exercises are recommended to improve Shoulder Pain (NSP). However, it is unclear why for the neck NSP, methods evaluating effects of these have not been clear. Objective The purpose this study was investigate time-dependent changes in stiffness extensor muscles due prolonged sitting effect exercise. Methods Twenty-five healthy adult women sat with their hands on a desk 90 min looking at computer screen then performed Shear wave velocities (SWV) (the upper...
A case report of histamine (Scombrotoxin) poisoning is presented. Five to ninety minutes after eating cooked swordfish, 30 persons reported feverishness, diarrhea, palpitations, headache, nausea, dyspnea, generalized urticaria, angioedema, and shock. Of these, 13 were admitted Saint Luke's International Hospital. The patients given intravenous hydration, IV Hl-blocker, subcutaneous epinephrine as needed. However, 4 required continuous administration intravenously for resolution the...
Abstract Stress distributions and deformation of adhesive butt joints are analyzed by an elastoplastic finite element method when the similar dissimilar shafts subjected to external bending moments. The effects ratio Young's modulus for adherends that thickness on interface stress distribution investigated. Joint strength is predicted using distributions. It found singular at edge interfaces increases with increase modulus. Measurement strains in experiments joint were conducted. numerical...
Stress distributions and deformation of adhesive butt joints are analyzed by the elastoplastic finite-element method when dissimilar shafts subjected to external bending moments. The effects ratio Young's modulus adherends that thickness on interface stress distribution investigated. Joint strength is predicted from using distributions. As a result, it found singular at edges increases with an increase modulus. Measurement strains in experiments joint were conducted. calculated results...