Jia-Jin Chen

Professor

  • 2347 Citations
  • 28 h-Index
1986 …2020
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Research Output 1986 2019

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Article
1987
25 Citations (Scopus)

Normative childhood EMG gait patterns

Shiavi, R. G., Green, N., McFadyen, B., Frazer, M. & Chen, J., 1987, In : Journal of Orthopaedic Research. 5, 2, p. 283-295 13 p.

Research output: Contribution to journalArticle

Gait
Muscles
Electromyography
Population Characteristics
Locomotion
1990
34 Citations (Scopus)
Distance measurement
Dynamic programming
Feature extraction
1991
20 Citations (Scopus)

Clustering Analysis and Pattern Discrimination of EMG Linear Envelopes

Zhang, L. Q., Shiavi, R., Hunt, M. A. & Chen, J-J., 1991 Jan 1, In : IEEE Transactions on Biomedical Engineering. 38, 8, p. 777-784 8 p.

Research output: Contribution to journalArticle

Discrete Fourier transforms
Ligaments
Feature extraction
1992
18 Citations (Scopus)

A Quantitative and Qualitative Description of Electromyographic Linear Envelopes for Synergy Analysis

Chen, J-J., Shiavi, R. G. & Zhang, L. Q., 1992 Jan 1, In : IEEE Transactions on Biomedical Engineering. 39, 1, p. 9-18 10 p.

Research output: Contribution to journalArticle

Normal distribution
Parameter estimation
Maximum likelihood
1993
20 Citations (Scopus)

Applying Al Clustering to Engineering Tasks

Fisher, D., Xu, L., Chen, J-J., Shiavi, R., Biswas, G. & Weinberg, J., 1993 Jan 1, In : IEEE Expert-Intelligent Systems and their Applications. 8, 6, p. 51-60 10 p.

Research output: Contribution to journalArticle

1994

Assessment of asymmetric gait in hemiplegia using electromyographic phasic activity

Chen, J-J., Huseh, T. C., Liou, J. J., Hwang, I-S. & Lin, S. I., 1994 Jan 1, In : Biomedical Engineering - Applications, Basis and Communications. 6, 2, p. 211-217 7 p.

Research output: Contribution to journalArticle

Electromyography
Hemiplegia
Gait
Neurologic Gait Disorders
Research
2 Citations (Scopus)

Electromyographic analysis of habituation processes of treadmill walking to floor walking.

Hwang, I-S., Chen, J-J., Liou, J. J., Huseh, T. C. & Chou, Y. L., 1994 Jan 1, In : Proceedings of the National Science Council, Republic of China. Part B, Life sciences. 18, 3, p. 118-126 9 p.

Research output: Contribution to journalArticle

Electromyography
Walking
Locomotion
Research
Muscles
1995
Temporal Lobe
Electrodes
Feasibility Studies
Head
Research
1996
52 Citations (Scopus)

Real-time implementation of electromyogram pattern recognition as a control command of man-machine interface

Chang, G. C., Kang, W. J., Jer-Junn, L., Cheng, C. K., Lai, J. S., Chen, J. J. J. & Kuo, T. S., 1996 Oct, In : Medical Engineering and Physics. 18, 7, p. 529-537 9 p.

Research output: Contribution to journalArticle

Electromyography
Pattern recognition
Digital signal processors
Maximum likelihood
Reaction Time
1997
3 Citations (Scopus)

Application of dipole modeling in localization of mesio-temporal epileptogenic focus.

Chen, J-J., Tsai, J. J., Sheu, C. H., Lin, H. Y. & Yeh, J. G., 1997 Jan 1, In : Proceedings of the National Science Council, Republic of China. Part B, Life sciences. 21, 2, p. 61-70 10 p.

Research output: Contribution to journalArticle

Electrodes
Electromagnetic Phenomena
Electroencephalography
Head
Research
92 Citations (Scopus)

Applying fuzzy logic to control cycling movement induced by functional electrical stimulation

Chen, J-J., Yu, N. Y., Huang, D. G., Ann, B. T. & Chang, G. C., 1997 Jun 1, In : IEEE Transactions on Rehabilitation Engineering. 5, 2, p. 158-168 11 p.

Research output: Contribution to journalArticle

Fuzzy Logic
Electric Stimulation
Fuzzy logic
Controllers
Paraplegia
5 Citations (Scopus)

Spatio-temporal representation of multichannel EMG firing patterns and its clinical applications

Chen, J. J. J., Sun, T. Y., Lin, T. H. & Lin, T. S., 1997 Jun 1, In : Medical Engineering and Physics. 19, 5, p. 420-430 11 p.

Research output: Contribution to journalArticle

Motor Neurons
Spatial distribution
Neurons
Motor Activity
Spatio-Temporal Analysis
19 Citations (Scopus)
Muscle Fatigue
Electromyography
Muscle
Fatigue of materials
Fatigue
1998
6 Citations (Scopus)

Initial estimation methods for dipole modeling in localization of epileptogenic focus

Chen, J-J., Yeh, J. G. & Tsai, J. J., 1998 Apr 1, In : Medical Engineering and Physics. 20, 1, p. 11-20 10 p.

Research output: Contribution to journalArticle

Singular value decomposition
Noise
Electroencephalography
1999
22 Citations (Scopus)

Multielectrode surface EMG for noninvasive estimation of motor unit size

Sun, T. Y., Lin, T-S. & Chen, J-J., 1999 Aug 1, In : Muscle and Nerve. 22, 8, p. 1063-1070 8 p.

Research output: Contribution to journalArticle

Action Potentials
Electrodes
Neurophysiological Recruitment
Neuromuscular Diseases
Architectural Accessibility
72 Citations (Scopus)
Foot
Aptitude
Cerebral palsy, spastic, diplegic
Maintenance
Pressure
2000
17 Citations (Scopus)

Analysis of motor unit firing patterns in patients with central or peripheral lesions using singular-value decomposition

Sun, T. Y., Chen, J. J. & Lin, T. S., 2000 Jul 1, In : Muscle and Nerve. 23, 7, p. 1057-1068 12 p.

Research output: Contribution to journalArticle

Muscular Diseases
Computer Simulation
Stroke
Healthy Volunteers
Muscles
3 Citations (Scopus)
Muscle
Equipment and Supplies
Muscles
Stretch Reflex
Torque
34 Citations (Scopus)
Stretch Reflex
Torque
Reflex
Elbow Joint
Muscle Spasticity
2001
17 Citations (Scopus)
Electric Stimulation
Knee
Ankle Joint
Hip Joint
Activities of Daily Living
4 Citations (Scopus)

Development of FES-cycling system with network capability for multi-center clinical studies

Chen, H. Y., Yu, N. Y., Chen, K., Tsai, K. H., Fu, L., Chen, S. C., Huang, M. H. & Chen, J. J. J., 2001 Dec 1, In : Journal of Medical and Biological Engineering. 21, 2, p. 85-92 8 p.

Research output: Contribution to journalArticle

Electric Stimulation
Spinal Cord
Exercise equipment
Muscle Strength
Clinical Protocols
53 Citations (Scopus)

Effects of a single session of prolonged muscle stretch on spastic muscle of stroke patients.

Tsai, K. H., Yeh, C. Y., Chang, H. Y. & Chen, J-J., 2001 Jan 1, In : Proceedings of the National Science Council, Republic of China. Part B, Life sciences. 25, 2, p. 76-81 6 p.

Research output: Contribution to journalArticle

Muscle Spasticity
Stroke
Muscles
Hemiplegia
Motor Neurons
3 Citations (Scopus)

Validation of portable muscle tone measurement device based on a motor-driven system

Chen, J-J., Lee, H. M. & Huang, Y. Z., 2001 Jan 1, In : Annual International Conference of the IEEE Engineering in Medicine and Biology-Proceedings. 2, p. 1213-1215 3 p., 55.

Research output: Contribution to journalArticle

Muscle
Equipment and Supplies
Muscles
Air Bags
Hand
36 Citations (Scopus)
Young Adult
Foot
Ankle
Hip
Pressure
2002
69 Citations (Scopus)

Quantitative analysis of the velocity related pathophysiology of spasticity and rigidity in the elbow flexors

Lee, H. M., Huang, Y. Z., Chen, J. J. J. & Hwang, I. S., 2002 May 13, In : Journal of Neurology Neurosurgery and Psychiatry. 72, 5, p. 621-629 9 p.

Research output: Contribution to journalArticle

Torque
Elbow
Reflex
Muscle Hypertonia
Muscle Rigidity
2003
8 Citations (Scopus)
Microcontrollers
Power transmission
Data communication systems
Animals
Surface mount technology
14 Citations (Scopus)
Locomotion
Walking
Healthy Volunteers
Ankle Joint
Ankle
3 Citations (Scopus)

Packaging Design for Implantable Microstimulator

Hung, C. C., Chung, C. L., Young, G. S., Lin, K. P. & Chen, J. J., 2003 Sep 1, In : Journal of Medical and Biological Engineering. 23, 3, p. 129-136 8 p.

Research output: Contribution to journalArticle

Packaging
Silicones
Dams
Electrodes
Rubber
2004
12 Citations (Scopus)
Microelectrodes
nerves
Self assembled monolayers
spacers
proteins
9 Citations (Scopus)

An improved design of home cycling system via functional electrical stimulation for paraplegics

Chen, K., Chen, S. C., Tsai, K. H., Chen, J. J. J., Yu, N. Y. & Huang, M. H., 2004 Sep 1, In : International Journal of Industrial Ergonomics. 34, 3, p. 223-235 13 p.

Research output: Contribution to journalArticle

Electric Stimulation
Wheelchairs
hardware
paraplegia
Hybrid systems
3 Citations (Scopus)

Design of Microscopy-based Microcontact Printing Stamp and Alignment Device for Patterned Neuronal Growth

Lin, S. P., Chuang, T. L., Chen, J. J. J. & Tzeng, S. F., 2004 Mar 1, In : Journal of Medical and Biological Engineering. 24, 1, p. 45-50 6 p.

Research output: Contribution to journalArticle

Printing
Lysine
Microscopy
Microscopic examination
Equipment and Supplies
20 Citations (Scopus)

High frequency block of selected axons using an implantable microstimulator

Peng, C. W., Chen, J. J. J., Lin, C. C. K., Poon, P. W. F., Liang, C. K. & Lin, K. P., 2004 Mar 15, In : Journal of Neuroscience Methods. 134, 1, p. 81-90 10 p.

Research output: Contribution to journalArticle

Axons
Neural Prostheses
Equipment and Supplies
Tibial Nerve
Torque
6 Citations (Scopus)

Image analysis system for acquiring three-dimensional contour of foot arch during balanced standing

Lin, C. H., Chen, J-J., Wu, C. H., Lee, H. Y. & Liu, Y. H., 2004 Aug 1, In : Computer Methods and Programs in Biomedicine. 75, 2, p. 147-157 11 p.

Research output: Contribution to journalArticle

Digital cameras
Arches
Image analysis
Foot
Gels
23 Citations (Scopus)

Quantitative analysis of ankle hypertonia after prolonged stretch in subjects with stroke

Yeh, C. Y., Chen, J-J. & Tsai, K. H., 2004 Aug 30, In : Journal of Neuroscience Methods. 137, 2, p. 305-314 10 p.

Research output: Contribution to journalArticle

Ankle
Torque
Stroke
Muscles
Ankle Joint

Signal Analysis Techniques for Multi-site Recordings of Somatosensory Evoked Potentials in Free Moving Rats

Chen, H. Y., Chen, J-J., Poon, P. W. F. & Chen, A. C. N., 2004 Mar 1, In : Journal of Medical and Biological Engineering. 24, 1, p. 1-8 8 p.

Research output: Contribution to journalArticle

Somatosensory Evoked Potentials
Bioelectric potentials
Signal analysis
Rats
Brain
7 Citations (Scopus)

Spasticity Evaluation of Hemiparetic Limbs in Stroke Patients before Intervention by Using Portable Stretching Device and EMG

Wu, Y. N., Huang, S. C., Chen, J-J., Wang, Y. L. & Piotrkiewicz, M., 2004 Mar 1, In : Journal of Medical and Biological Engineering. 24, 1, p. 29-35 7 p.

Research output: Contribution to journalArticle

Stretching
Muscle
Torque
5 Citations (Scopus)

The Time-Frequency Analysis of the Pudendo-to-Pudendal Nerve and Pelvic-to-Pudendal Nerve Reflexes in Anesthetized Intact Rats

Chang, H. Y., Peng, C. W., Chen, J-J., Cheng, C. L. & DeGroat, W. C., 2004 Mar 1, In : Journal of Medical and Biological Engineering. 24, 1, p. 17-22 6 p.

Research output: Contribution to journalArticle

Rats
Frequency bands
Brain
Control systems
31 Citations (Scopus)

Validation of portable muscle tone measurement device for quantifying velocity-dependent properties in elbow spasticity

Lee, H. M., Chen, J-J., Ju, M-S., Lin, C-C. & Poon, P. P. W., 2004 Oct 1, In : Journal of Electromyography and Kinesiology. 14, 5, p. 577-589 13 p.

Research output: Contribution to journalArticle

Elbow
Viscosity
Elbow Joint
Equipment and Supplies
Muscles
7 Citations (Scopus)
Power transmission
Data communication systems
Networks (circuits)
Logic circuits
Silicon
2005
39 Citations (Scopus)

An implantable bi-directional wireless transmission system for transcutaneous biological signal recording

Liang, C. K., Chen, J-J., Chung, C. L., Cheng, C. L. & Wang, C. C., 2005 Feb, In : Physiological Measurement. 26, 1, p. 83-97 15 p.

Research output: Contribution to journalArticle

Telemetry
Microcomputers
Product Packaging
Sciatic Nerve
Automatic Data Processing
11 Citations (Scopus)

Development of implantable wireless biomicrosystem for measuring electrode-tissue impedance

Li, Y. T., Chang, C. H., Chen, J-J., Wang, C. C. & Liang, C. K., 2005 Sep 1, In : Journal of Medical and Biological Engineering. 25, 3, p. 99-105 7 p.

Research output: Contribution to journalArticle

Electric Impedance
Microelectrodes
Electrodes
Tissue
Telecommunication links
39 Citations (Scopus)

Effects of prolonged muscle stretching with constant torque or constant angle on hypertonic calf muscles

Yeh, C. Y., Tsai, K. H. & Chen, J-J., 2005 Jan 1, In : Archives of Physical Medicine and Rehabilitation. 86, 2, p. 235-241 7 p.

Research output: Contribution to journalArticle

Torque
Muscles
Ankle
Articular Range of Motion
Biomechanical Phenomena
72 Citations (Scopus)

Increases in bone mineral density after functional electrical stimulation cycling exercises in spinal cord injured patients

Chen, S. C., Lai, C. H., Chan, W. P., Huang, M. H., Tsai, H. W. & Chen, J-J., 2005 Dec 15, In : Disability and Rehabilitation. 27, 22, p. 1337-1341 5 p.

Research output: Contribution to journalArticle

Bone Density
Electric Stimulation
Spinal Cord
Exercise
Spinal Cord Injuries
37 Citations (Scopus)

Kinesiological and kinematical analysis for stroke subjects with asymmetrical cycling movement patterns

Chen, H. Y., Chen, S. C., Chen, J-J., Fu, L. L. & Wang, Y. L., 2005 Dec 1, In : Journal of Electromyography and Kinesiology. 15, 6, p. 587-595 9 p.

Research output: Contribution to journalArticle

Workload
Stroke
Extremities
Electromyography
Quadriceps Muscle
37 Citations (Scopus)

The use of a portable muscle tone measurement device to measure the effects of botulinum toxin type A on elbow flexor spasticity

Chen, J. J. J., Wu, Y. N., Huang, S. C., Lee, H. M. & Wang, Y. L., 2005 Aug 1, In : Archives of Physical Medicine and Rehabilitation. 86, 8, p. 1655-1660 6 p.

Research output: Contribution to journalArticle

Type A Botulinum Toxins
Elbow
Reflex
Equipment and Supplies
Muscles
2006
10 Citations (Scopus)
Microelectrodes
Cell adhesion
impedance measurement
nerves
detachment
19 Citations (Scopus)

Development of a quantitative assessment system for correlation analysis of footprint parameters to postural control in children

Lin, C. H., Lee, H. Y., Chen, J-J., Lee, H. M. & Kuo, M. D., 2006 Feb 1, In : Physiological Measurement. 27, 2, p. 119-130 12 p.

Research output: Contribution to journalArticle

Arches
Foot
Flexible structures
Postural Balance
Foams
79 Citations (Scopus)

External urethral sphincter activity in a rat model of pudendal nerve injury

Peng, C. W., Chen, J-J., Chang, H. Y., De Groat, W. C. & Cheng, C. L., 2006 Aug 8, In : Neurourology and Urodynamics. 25, 4, p. 388-396 9 p.

Research output: Contribution to journalArticle

Pudendal Nerve
Urethra
Wounds and Injuries
Electromyography
Stress Urinary Incontinence
3 Citations (Scopus)
Electromyography
Fatigue
Muscle
Spinal Cord
Fatigue of materials
15 Citations (Scopus)

Reflexes evoked by electrical stimulation of afferent axons in the pudendal nerve under empty and distended bladder conditions in urethane-anesthetized rats

Chang, H. Y., Cheng, C. L., Chen, J-J., Peng, C. W. & De Groat, W. C., 2006 Jan 15, In : Journal of Neuroscience Methods. 150, 1, p. 80-89 10 p.

Research output: Contribution to journalArticle

Pudendal Nerve
Urethane
Electric Stimulation
Axons
Reflex