30612 - Laboratory of Biomechanics

Learning outcomes

After completing this course, the student will be able to design and perform experiments in the field of biomechanics as well as to interpret the results through the use of statistical and mathematical models. In particular he is able to: - use biomechanical equipments in the laboratory of Biomedical Engineering - design experiments based on gained knowledge - perform experiments with the assistance of the teacher - prepare data for the identification and validation of mathematical models of physical systems - to characterize the biomechanical behavior of biological tissues - study kinematics of the human body using stereo-photogrammetry - study the dynamics of the human body through the use of force platforms - use inertial devices with low invasiveness for the study of movement kinematics and dynamics.

Course contents

Part 1 - Measurement of kinematics
Methods and tools for the measurement of kinematic quantities: position, velocity, acceleration. 2D video analysis. The stereophotogrammetry: basic principles, errors, calibration, spot-checks. Estimation of position and orientation of a rigid body in 3D space. Estimation of joint orientation.

Part 2 - Measurement of dynamical variables
Methods and tools for the measurement of external forces: the force platform. Experimental determination of center of pressure and ground reaction forces. Methods and tools for the experimental determination of anthropometric parameters. Estimation of net internal joint moment.

Part 3 - Electromyography and Inertial Measurement Systems
Methods of measurement of muscle activity. Experimental determination of kinematics using accelerometer and gyroscope, comparison with measurements from stereophotogrammetry.

Part 4 - Applications
Kinematic and dynamic analysis of motor tasks: gait, sit-to-stand, reaching, vertical jump.

Readings/Bibliography

Lecture notes provided by the teacher

Teaching methods

The course comprehends ex-cathedra lessons for the presentation of theoretical concepts and practical exercises at the Laboratory of Biomedical Engineering. In particular, the practical exercises with laboratory instrumentation are carried out in small groups and exercises on the personal computer individually. Given the relevance of practical exercises for the achievement of the knowledge and skills objectives of this course, attendance at the lectures is strongly recommended.

As concerns the teaching methods of this course unit, all students must attend Module 1, 2 <https://www.unibo.it/en/services-and-opportunities/health-and-assistance/health-and-safety/online-course-on-health-and-safety-in-study-and-internship-areas > on Health and Safety online.

Assessment methods

Final verification is done through: 1) exercise of (biomechanical) data analysis on the computer lab (1h 30 minutes), 2) examination in written form on methods of measurements and/or laboratory activities (open questions).

The final mark takes into account the evaluations reported in the two parts of the test (part 1- 60%; part 2 - 40%).

Teaching tools

Stereophotogrammetric system
Inertial sensors
Force platforms
Multi-channel electromyograph

Office hours

See the website of Maria Cristina Bisi