VSR End Of Year Report 2004
Notes From The Director
Executive Summary
Major Research Contributions
VSR 2004 Accomplishments
Kinematic Human Modeling Posture Prediction Human Performance Measures Motion Prediction Real Time Simulation Environments Gesture-Based Man-Machine Interface Obstacle Avoidance Virtual Reality For Santos™ Motion Dynamics Motion Capture Research Mathematical Modeling Of Clothing Modeling Physiology Muscle Stress And Strain Optimization Based Formulations Workspace Analysis Optimization Software Benchmark Modeling Muscle Fatigue The Physiology of Muscles The Muscle Motor Unit Recruitment during a Contraction Triggering Muscle Contractions Muscle Contraction and Force Generation Mechanical muscle models Hill’s Model Zajac’s Modifications to the Hill Model Comments on the Zajac Model Muscle force prediction model A Predictive Mathematical Model for Skeletal Muscle Forces Determination of Parameter Values Predicting Muscle Forces: Calculation Results Applicability of the Model to Different Types of Muscle Fibers Limitations of Wexler’s Force Prediction Model Preparing the Equations for Fatigue The Fatigue Equations Comparison of the Non-Fatigue and Fatigue Models Comparison of the Fatigue Model with Various Stimulation Frequency Trains Comparison of Model Predictions with Wexler’s Experimental Data Limitations of the Fatigue Prediction Model Mechanical simulations with muscle fatigue Applying the Muscle Forces to a Mechanical Model Simulation: Non-fatiguing Muscle as a Reference Simulation: Large Force but Rapid Fatigue Simulation: Small Force, but Slow Fatigue Mechanical Leg Model Simulation: Conclusion Others Working with Muscle Fatigue Rodriguez’s experimental set-up Comments on Simulations Running Wexler’s Model to Include Repetitions and Recovery CONCLUSIONS REFERENCES
VSR Jan 2004 Presentation VSR Team VSR Publications