實驗室簡介 final
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National Chiao Tung University, Taiwan
Biomechanics and Biomechanics and Medical Application Medical Application
LaboratoryLaboratory
Bing-Shiang Yang, Ph.D., P.EBing-Shiang Yang, Ph.D., P.EDepartment of Mechanical EngineerinDepartment of Mechanical Engineeringg
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
2
PeoplePeople
10 graduate students (1 doctoral std)10 graduate students (1 doctoral std) 10 undergraduate students10 undergraduate students 1 part-time assistant1 part-time assistant
CollaboratorsCollaborators Brain Research Center, Dept. of EE, CS, NCTUBrain Research Center, Dept. of EE, CS, NCTU Hsinchu General HospitalHsinchu General Hospital Chang Gung Memorial HospitalChang Gung Memorial Hospital National Taipei University of TechnologyNational Taipei University of Technology
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
3
Facility Facility
120 m120 m22 lab space lab space Motion analysis systemMotion analysis system Electromyography measurementElectromyography measurement Surface reaction measurementSurface reaction measurement Transcranial magnetic stimulatorTranscranial magnetic stimulator Musculoskeletal modeling packageMusculoskeletal modeling package Net conference systemNet conference system
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
4
FundingFunding
National Science CouncilNational Science Council Ministry of EducationMinistry of Education
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
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Stroke neuro-rehabilitationStroke neuro-rehabilitation
Integrated smart living technologyIntegrated smart living technology– Biomechanical considerations for living Biomechanical considerations for living
environmentenvironment– Interactive fitness/training equipment dInteractive fitness/training equipment d
evelopmentevelopment
Light weight vehicle for the elderlyLight weight vehicle for the elderly
Current Research Topics Current Research Topics
National Chiao Tung University, Taiwan
The feasibility of using vibratory The feasibility of using vibratory afferent input for stroke hand afferent input for stroke hand rehabilitationrehabilitation
S-J Chen, K-T Huang, P-C Lin, & S-C LiaoS-J Chen, K-T Huang, P-C Lin, & S-C LiaoCollaborators: Collaborators: Hsinchu General Hospital &Hsinchu General Hospital &
Chang-Gung Memorial HospitalChang-Gung Memorial Hospital
Stroke Neuro-rehabilitation
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
7
Introduction Introduction
Stroke is the leading cause of long-term disability Stroke is the leading cause of long-term disability (Turney et al. 1984; American Heart Association 2005)(Turney et al. 1984; American Heart Association 2005)
Hand dysfunction is the most common impairmenHand dysfunction is the most common impairment post-stroke. t post-stroke. (Butefisch et al. 2003; Lang and Schieber 2003)(Butefisch et al. 2003; Lang and Schieber 2003)
Lack of finger independency or muscle selectivity iLack of finger independency or muscle selectivity is a primary contributor s a primary contributor (Li et al. 2003; Lang & Schieber 2003, (Li et al. 2003; Lang & Schieber 2003, 2004)2004)
… … A strategy to reduce abnormal coupling?A strategy to reduce abnormal coupling? Muscle vibration affects the motor-evoked potentiMuscle vibration affects the motor-evoked potenti
al (MEP) of the vibrated muscle in healthy and possal (MEP) of the vibrated muscle in healthy and possibly stroke individuals. ibly stroke individuals. (Siggelkow et al. 1999; Rosenkranz a(Siggelkow et al. 1999; Rosenkranz and Rothwell 2003; Yang et al. 2006).nd Rothwell 2003; Yang et al. 2006).
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
8
Aim 1Aim 1
Identify the patterns of muscle vibration-modulateIdentify the patterns of muscle vibration-modulated hand corticomotor excitability in individuals follod hand corticomotor excitability in individuals following stroke (Yang et al., 2006)wing stroke (Yang et al., 2006)
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
9
Aim 2Aim 2
Effect of MV on stretch Effect of MV on stretch reflexreflex– The contribution of spinal The contribution of spinal
pathways on vibration-pathways on vibration-induced changes in motor induced changes in motor evoked potentials is not evoked potentials is not clear. clear.
Result:Result:– The amplitude of M1 was The amplitude of M1 was
depressed by vibration.depressed by vibration.– The spinal pathway did not The spinal pathway did not
provide the positive effects provide the positive effects on the increase of MEP.on the increase of MEP.
Ia Inhibition
Afferent
Stretch
Vibration
=
Efferent
1. M1↓2. M2 =
Spinalcord
Brain +
SLSR Peak Amplitude (n=10)
0
50
100
150
200
FDI APB ADM%
MV
C no MV
MV
*
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
10
Aim 3Aim 3 Examine whether the Examine whether the
vibration-induced nevibration-induced neurophysiological modurophysiological modulations reflect in the ulations reflect in the voluntary control of fivoluntary control of finger movementsnger movements..
HypothesisHypothesis Muscle vibration to selecMuscle vibration to selec
tive hand muscle affects tive hand muscle affects muscle selectivity and finmuscle selectivity and finger independency in healger independency in healthy/stroke individuals.thy/stroke individuals.
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
11
Aim 4Aim 4
Examine the effect of attended prolonged Examine the effect of attended prolonged muscle vibration on hand corticomotor excimuscle vibration on hand corticomotor excitability and control of finger movements. tability and control of finger movements.
Hypotheses:Hypotheses: prolong muscle vibration and subject’s attention prolong muscle vibration and subject’s attention
to vibration provide long-lasting effect on hand corto vibration provide long-lasting effect on hand corticomotor excitability.ticomotor excitability.
the long-lasting modulations of motor pathway exthe long-lasting modulations of motor pathway excitability also reflect on control of finger movemencitability also reflect on control of finger movements.ts.
National Chiao Tung University, Taiwan
Integrated Smart Living Integrated Smart Living TechnologyTechnology
H-Y Hu, C-C Wang, S-W Chou, T-S Chen, H-Y Hu, C-C Wang, S-W Chou, T-S Chen, S-T Liao & Yi-Ting YangS-T Liao & Yi-Ting YangCollaborators: Brain Research Center, EE Collaborators: Brain Research Center, EE & CS Dept, NTHU, YMU, NCU…& CS Dept, NTHU, YMU, NCU…
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
13
Force PlateForce Plate
Floor Floor Material Material
BB
Floor Floor Material Material
AA
Coefficient of FrictionCoefficient of Friction on Different Floor Surfaces on Different Floor Surfaces
Effects of Floor Transition Effects of Floor Transition on Gait Stabilityon Gait Stability
Adaptation on Adaptation on Different ConditionDifferent Condition
Appropriate Range of COF Appropriate Range of COF and Suitable Floor materialand Suitable Floor material
Effect of Floor Material Change Effect of Floor Material Change on Gait Stabilityon Gait Stability
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
14
Effect of Floor Material Change Effect of Floor Material Change on Gait Stabilityon Gait Stability
Foot angle at heel strike would decrease, and lager peak RCOF was also observed.
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
15
Real-Time Musculoskeletal Real-Time Musculoskeletal ModelingModeling
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
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Movement Classifier Using Movement Classifier Using Inertial Sensors & EMGInertial Sensors & EMG
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
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Movement Classifier Using Movement Classifier Using Inertial Sensors & EMGInertial Sensors & EMG
Fall occurs at Fall occurs at 1.8s1.8s
EMG EMG
Motion capture
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
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BiometricsBiometrics
Kinetics
Neural Network (Self-Organizing map)
Kinematics Plantar Pressure
Person Recognition
Offering biomechanical point of view for computer science and electronics communitiesReducing computing timeFinding other movement features of human gait that co
uld provide good recognition rate
National Chiao Tung University, Taiwan
Light weight vehicle for Light weight vehicle for the elderlythe elderly
S-W Chou, T-S Chen, S-T Liao, & S-T WuS-W Chou, T-S Chen, S-T Liao, & S-T WuCollaborator: Collaborator: National Taipei University of National Taipei University of Technology Technology
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
20
Wheelchair or Scooter Foldable seat
Older user – centered designOlder user – centered design
Dynamic controlUser’s needs
Ergonomics
Suspension system Light weight structure
Solar energy A/C
User safety design
Egress/Ingress safetyDynamic driving safetyUser’s physiological status monitoring
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
21
Experimental platformExperimental platform
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
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Experimental setupExperimental setup
biomechanics biomechanics && medical application lab medical application labNational Chiao Tung University, Taiwan Bing-Shiang YangBing-Shiang Yang, ,
Ph.D., P.E.Ph.D., P.E.
23
Musculoskeletal modelingMusculoskeletal modeling
National Chiao Tung University, Taiwan
Biomechanics and Biomechanics and Medical Application Medical Application
LaboratoryLaboratory
Bing-Shiang Yang, Ph.D., P.EBing-Shiang Yang, Ph.D., P.EDepartment of Mechanical EngineerinDepartment of Mechanical Engineeringg
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