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PHYSICS APPLIED TO BIOMECHANICS AND AIDS Course Sheet Academic Year of enrolment:
Disciplinary Sector:
Applied Physics (Cultural Heritage, Environment, Biology and Medicine)
Professor and Collaborators:
Hours of classroom activity:
Prerequisites:
The proposed program will also allow students who have not previously matured
Disciplinary knowledge to achieve the training objectives indicated. There are therefore no prerequisites, but we recommend a knowledge of the notions of mathematics present in all high school programs.
Objectives
Contents Physical quantities and their measurement units;the particle kinematics; th particle dynamics; statics and dynamics of extendend bodies. Work and energy. Basics of electrostatics and electrodynamics.
Extended Syllabus -Physical quantities and their measurement units. The particle kinematics: Reference systems - Rectilinear motion: position, velocity and and uniform rectilinear motion. Acceleration and uniform accelerated motion. free fall motion of a body, examples. Bidimensional kinematics, position and velocit vector, trajectory. Operations with vectors: sum, difference, using the grapical approach. Overview of goniometric functions and Vector components. Vector sum using components. Motion of a projectile and examples. Uniform circular motion: velocity, centripetal acceleration, angular velocity, motion time study, harmonic motion.
-Particle Dynamics: Newton's laws, Examples and applications. Weight force, normal plane reaction, frictional force. Inclined plane without friction, examples. Inclined plane with friction. Tension of a rope, elastic force, centripetal resulting force and examples. Pressure and friction force in the decubitus.
- Rigid body dynamics: existence of the center of mass and equation of translational dynamics. Position of the center of mass. Moment of a force. Balance of a rigid body. Levers: equations, schematic drawings and applications to the human body. Rotational dynamics, rotational analogue of Newton's second law. Application to the support design.
- Biomechanical applications: quantitative analysis of the levers in the human body: the skull; trunk-vertebral balance - Normal weight case and Obesity / Overweight case and analogies with the lifting of a patient; foot during walking; elbow joint. Hip joint and its pathologies: Forces and moments on the normal joint; Antalgic hip and use of the stick and other supports. Applications to patient support and therapist effects. The vertebral column and its pathologies: Forces and moments on the fifth lumbar vertebra; limit of elasticity of the disc, hernia; Slip stress. Effects when lifting a patient.
Work and energy: Work of a force - Power - Kinetic energy - Theorem of kinetic energy - Conservative forces - Potential energy - Conservation of mechanical energy.
Electrostatics and electrodynamics: Electric charge. Coulomb's law. The electric field. Electrical potential and potential difference. The electric current. Electrical resistance and Ohm's law. Application: power supply and movement in bionic supports.
Recommended Bibliography -D. Giancoli - Fisica (con fisica moderna) - Casa Editrice Ambrosiana
-J.S. Walker, “Fondamenti di fisica”, Pearson
-D. Scannicchio, "Fisica Biomedica", EDISES
Slides provided by the professor
Teaching Methods
Evaluation methods Verification of learning:
The evaluation method consists of oral examination and the topics
under examination will reflect those discussed during the lessons and
present in the program. Specifically, both the topics on the basic principles and the application of these topics to the analysis techniques applied during this course of study, will be eaminated. The exam mode and the evaluation method will
be indicated by the teacher at the beginning of the course. The
evaluation will be based on the knowledge of the topics covered by the
exam questions and the students? logical-argumentative skills. For the
purpose of the evaluation, the quality of the oral presentation will
also be taken into consideration with particular reference to the
competence in the use of the specialized lexicon.
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