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Proceedings Papers

A Method for Determining the Strain-Time Endurance of Cells in Planar Tissue-Engineered Constructs Subjected to Large Compressive Deformations

Amit Gefen, Bastiaan van Nierop, Dan L. Bader, Cees W. Oomens
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 253-254, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-192322
https://doi.org/10.1115/SBC2008-192322
View Paper titled, A Method for Determining the Strain-Time Endurance of Cells in Planar Tissue-Engineered Constructs Subjected to Large Compressive Deformations
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Topics: Biological tissues, Deformation, Muscle, Diseases, Wounds
Proceedings Papers

Real-Time Continuous Monitoring of Sub-Dermal Tissue Stresses Under the Ischial Tuberosities in Individuals With Spinal Cord Injury

Eran Linder-Ganz, Ziva Yizhar, Itzhak Siev-Ner, Amit Gefen
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 997-998, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-192779
https://doi.org/10.1115/SBC2008-192779
View Paper titled, Real-Time Continuous Monitoring of Sub-Dermal Tissue Stresses Under the Ischial Tuberosities in Individuals With Spinal Cord Injury
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Topics: Biological tissues, Spinal cord, Stress, Wounds, Muscle, Bioengineering, Diffusion (Physics), Finite element analysis, Modeling, Pressure
Proceedings Papers

The Effects of Pressure and Shear on Capillary Closure in the Microstructure of Skeletal Muscles: Computational Studies

Eran Linder-Ganz, Amit Gefen
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 929-930, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-176516
https://doi.org/10.1115/SBC2007-176516
View Paper titled, The Effects of Pressure and Shear on Capillary Closure in the Microstructure of Skeletal Muscles: Computational Studies
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Topics: Muscle, Pressure, Shear (Mechanics), Biological tissues, Stress, Wounds, Collapse, Deformation, Finite element analysis, Physiology
Proceedings Papers

Peak Gluteal Muscle Strain and Stress Values During Sitting Are Greater in Paraplegics Than in Normals

Eran Linder-Ganz, Noga Shabshin, Yacov Itzchak, Itzhak Siev-Ner, Amit Gefen
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 547-548, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-175941
https://doi.org/10.1115/SBC2007-175941
View Paper titled, Peak Gluteal Muscle Strain and Stress Values During Sitting Are Greater in Paraplegics Than in Normals
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Topics: Muscle, Stress, Biological tissues, Magnetic resonance imaging, Wheelchairs, Finite element analysis, Pressure, Shear stress, Soft tissues, Wounds
Proceedings Papers

Biomechanical Analysis of a Serious Pressure Ulcer Case in a Real-World Scenario

Eran Linder-Ganz, Nogah Shabshin, Amit Gefen
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 669-670, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-205038
https://doi.org/10.1115/SBC2009-205038
View Paper titled, Biomechanical Analysis of a Serious Pressure Ulcer Case in a Real-World Scenario
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Topics: Biomechanics, Pressure, Biological tissues, Muscle, Stress, Compression, Damage, Bearings, Diffusion (Physics), Skin
Proceedings Papers

Anatomical and Surgical Risk Factors Affecting the Internal Mechanical Conditions in the Transtibial Residuum

Sigal Portnoy, Ziva Yizhar, Noga Shabshin, Yaakov Itzchak, Anat Kristal, Itzhak Siev-Ner, Amit Gefen
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 931-932, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-204523
https://doi.org/10.1115/SBC2009-204523
View Paper titled, Anatomical and Surgical Risk Factors Affecting the Internal Mechanical Conditions in the Transtibial Residuum
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Topics: Risk, Surgery, Muscle, Skin, Artificial limbs, Biological tissues, Wounds, Pressure, Stress, Bone
Proceedings Papers

Adipocytes Respond to Mechanical Stretch by Producing More Lipids

Naama Shimon, Orna Shaharabani-Yosef, Uri Zaretsky, Amit Gefen
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 343-344, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53057
https://doi.org/10.1115/SBC2011-53057
View Paper titled, Adipocytes Respond to Mechanical Stretch by Producing More Lipids
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Topics: Biological tissues, Calories
Proceedings Papers

A Method for Quantitative Analysis of the Kinematics of Fibroblast Migration in a Monolayer Wound Model

Gil Topman, Orna Sharabani-Yosef, Amit Gefen
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 355-356, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53070
https://doi.org/10.1115/SBC2011-53070
View Paper titled, A Method for Quantitative Analysis of the Kinematics of Fibroblast Migration in a Monolayer Wound Model
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Topics: Assaying, Fibroblasts, Kinematics
Proceedings Papers

Cell-to-Cell Variability in Tensile Strains Occurring in the Plasma Membrane and Nuclear Surface Area of Compressed Myoblasts

Noa Slomka, Amit Gefen
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 1155-1156, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53234
https://doi.org/10.1115/SBC2011-53234
View Paper titled, Cell-to-Cell Variability in Tensile Strains Occurring in the Plasma Membrane and Nuclear Surface Area of Compressed Myoblasts
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Topics: Cell membranes, Deformation, Biological tissues, Cellular mechanics, Compression, Finite element analysis, Microscopy, Modeling, Muscle, Permeability
Journal Articles

Stretching Affects Intracellular Oxygen Levels: Three-Dimensional Multiphysics Studies

Efrat Leopold, Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. June 2012, 134(6): 064501.
https://doi.org/10.1115/1.4006813
Published Online: June 8, 2012
View Article titled, Stretching Affects Intracellular Oxygen Levels: Three-Dimensional Multiphysics Studies
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Topics: Deformation, Diffusion (Physics), Modeling, Oxygen, Temperature, Simulation, Cellular mechanics, Finite element analysis, Geometry
Journal Articles

Cell-to-Cell Variability in Deformations Across Compressed Myoblasts

Noa Slomka, Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2011, 133(8): 081007.
https://doi.org/10.1115/1.4004864
Published Online: September 15, 2011
View Article titled, Cell-to-Cell Variability in Deformations Across Compressed Myoblasts
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Topics: Cell membranes, Compression, Deformation, Finite element analysis, Microscopy, Modeling
Journal Articles

Effects of Intramuscular Fat Infiltration, Scarring, and Spasticity on the Risk for Sitting-Acquired Deep Tissue Injury in Spinal Cord Injury Patients

Ran Sopher, Jane Nixon, Claudia Gorecki, Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. February 2011, 133(2): 021011.
https://doi.org/10.1115/1.4003325
Published Online: January 31, 2011
View Article titled, Effects of Intramuscular Fat Infiltration, Scarring, and Spasticity on the Risk for Sitting-Acquired Deep Tissue Injury in Spinal Cord Injury Patients
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Topics: Biological tissues, Muscle, Stress, Wounds, Risk, Simulation
Journal Articles

The Relationship Between Sperm Velocity and Pressures Applied to the Zona Pellucida During Early Sperm-Oocyte Penetration

Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. December 2010, 132(12): 124501.
https://doi.org/10.1115/1.4002857
Published Online: November 12, 2010
View Article titled, The Relationship Between Sperm Velocity and Pressures Applied to the Zona Pellucida During Early Sperm-Oocyte Penetration
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Topics: Biomechanics, Contact mechanics, Density, Fertilizer application, Modeling, Pressure, Stiffness, Physiology, Velocity measurement
Journal Articles

Effects of Virus Size and Cell Stiffness on Forces, Work, and Pressures Driving Membrane Invagination in a Receptor-Mediated Endocytosis

Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. August 2010, 132(8): 084501.
https://doi.org/10.1115/1.4001888
Published Online: June 28, 2010
View Article titled, Effects of Virus Size and Cell Stiffness on Forces, Work, and Pressures Driving Membrane Invagination in a Receptor-Mediated Endocytosis
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Topics: Biomechanics, Cellular mechanics, Elastic moduli, Membranes, Stiffness, Contact mechanics
Journal Articles

Measurements of the Static Friction Coefficient Between Bone and Muscle Tissues

Sharon Shacham, David Castel, Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. August 2010, 132(8): 084502.
https://doi.org/10.1115/1.4001893
Published Online: June 28, 2010
View Article titled, Measurements of the Static Friction Coefficient Between Bone and Muscle Tissues
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Topics: Biological tissues, Bone, Finite element analysis, Friction, Muscle, Stiction, Stress, Orthopedics, Biomechanics, Machinery
Journal Articles

A New System for Monitoring Gait Training in Infants With Down Syndrome

Sigal Portnoy, Amit Gefen, Ph.D., Assaf Ohana, Ziva Yizhar, Ph.D.
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. June 2009, 3(2): 024501.
https://doi.org/10.1115/1.3116251
Published Online: April 21, 2009
View Article titled, A New System for Monitoring Gait Training in Infants With Down Syndrome
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Topics: Belts, Engines, Gait analysis, Motors, Patient treatment, Sensors, Measurement systems, Patient monitoring
Journal Articles

Stress Analyses Coupled With Damage Laws to Determine Biomechanical Risk Factors for Deep Tissue Injury During Sitting

Eran Linder-Ganz, Amit Gefen, Ph.D.
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. January 2009, 131(1): 011003.
https://doi.org/10.1115/1.3005195
Published Online: November 18, 2008
View Article titled, Stress Analyses Coupled With Damage Laws to Determine Biomechanical Risk Factors for Deep Tissue Injury During Sitting
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Topics: Biological tissues, Damage, Muscle, Simulation, Stress, Wounds, Biomechanics, Risk, Pressure, Stress analysis (Engineering)
Journal Articles

The Diabetic Foot Load Monitor: A Portable Device for Real-Time Subject-Specific Measurements of Deep Plantar Tissue Stresses During Gait

Eran Atlas, Ziva Yizhar, Amit Gefen
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research Papers
J. Med. Devices. March 2008, 2(1): 011005.
https://doi.org/10.1115/1.2891241
Published Online: March 10, 2008
View Article titled, The Diabetic Foot Load Monitor: A Portable Device for Real-Time Subject-Specific Measurements of Deep Plantar Tissue Stresses During Gait
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Topics: Diabetes, Stress, Biological tissues, Structural mechanics
Journal Articles

Viscoelastic Properties of Ovine Adipose Tissue Covering the Gluteus Muscles

Amit Gefen, Einat Haberman
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. December 2007, 129(6): 924–930.
https://doi.org/10.1115/1.2800830
Published Online: April 19, 2007
View Article titled, Viscoelastic Properties of Ovine Adipose Tissue Covering the Gluteus Muscles
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Topics: Biological tissues, Compression, Muscle, Relaxation (Physics), Stress, Elastic moduli, Viscoelasticity, Cycles, Mechanical properties
Journal Articles

Stress Relaxation of Porcine Gluteus Muscle Subjected to Sudden Transverse Deformation as Related to Pressure Sore Modeling

Avital Palevski, Ittai Glaich, Sigal Portnoy, Eran Linder-Ganz, Amit Gefen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. October 2006, 128(5): 782–787.
https://doi.org/10.1115/1.2264395
Published Online: April 9, 2006
View Article titled, Stress Relaxation of Porcine Gluteus Muscle Subjected to Sudden Transverse Deformation as Related to Pressure Sore Modeling
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Topics: Deformation, Muscle, Pressure, Relaxation (Physics), Shear modulus, Stress, Modeling, Mechanical properties