Definition of Biomechanics. Course Outline. Course Website

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Definition of Biomechanics The application of mechanical principles to the structure and function of organisms (like humans). Tony Leyland leyland@sfu.

1 Definition of Biomechanics The application of mechanical principles to the structure and function of organisms (like humans). Tony Leyland Structure: internal (tissue) biomechanics Function: external (gross) biomechanics All course information is on this website 1 2 Course Outline The outline is on the main webpage Course objectives Text information Tutorial attendance Evaluation iclicker Assignments exams Course Website Course outline Office hours Lecture schedule Practice questions Assignments Answer keys Grades 3 4 1

Course Prerequisites Recommended Course Text Intro to Kines (KIN 142) essential, especially functional anatomy Mechanics (PHYS 101, 120, 125, or 140) a big help with most problems Differential

2 Course Prerequisites Recommended Course Text Intro to Kines (KIN 142) essential, especially functional anatomy Mechanics (PHYS 101, 120, 125, or 140) a big help with most problems Differential calculus (MATH 151 or 154) essential for some sections Integral calculus (MATH 152 or 155) less essential; can be taken concurrently 5 Hamill, J. & K.M. Knutzen. Biomechanical Basis of Human Movement, (3 rd edition). Lippincott Williams and Wilkins, Philadelphia, This text is not required lecture slides and lots of practice problems will be posted on the course website. You can t get all the course information from the text. The text will be on library reserve, as well as many other biomechanics texts which cover the same mechanical concepts. 6 Course objectives Qualitative vs. Quantitative By the end of this course, you should be able to: 1. Use mechanical concepts such as force, moments, velocity, acceleration, inertia, momentum, work, energy, elasticity, viscoelasticity, stress, and strain to: determine the effects of forces applied to the body and forces generated by the body predict human movement analyze rehabilitation, ergonomics, exercise, and sports activities 2. Discuss how the structural and functional properties of body tissues affect their mechanical behaviour 3. For common data acquisition techniques such as photo, video, accelerometer, motion capture, force recording, inverse dynamics, and electromyography: identify the type of information provided by each technique discuss appropriate situations to use each technique interpret the data obtained from each technique 7 good slow long heavy flexed 50 revolutions 3 seconds 6 metres 25 kilograms 45 angle 8 2

3 Kelvin (1891) I often say that when you can measure what you are speaking about and express it in numbers, you know something about it: but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind. Oscar Wilde Education is very admirable but let us not forget that anything worth knowing cannot be taught in other words you get out what you put in!! e.g. If you don t buy the text or use a reserve text you have to come to lecture! Common Misconceptions Problem Based Learning If I don't lecture on the material it isn t covered. If I do lecture on the material it is covered! I believe that you don t learn unless you do! How would you learn to perform a jump shot in basketball? The same is true of biomechanical concepts. You have to practice using them to fully learn them. 3

4 Downloads Required Soon : : iclicker I will be recording your best 16 totals out of 23 lectures. You will need to register your iclicker online You can use either the simple iclicker or iclicker2 These are located at the top of the Kin201 webpage. 14 Grading PRACTICE iclicker 10% best 16 class scores Assignments 10% (2 x 5%) you can submit as an individual or in a group (up to four people) Term project 15% must be completed in groups of three to four You can t fully understand and use biomechanical concepts unless you practice using them. There will be lots of practice problems on the course website! Midterms 30% (2 x 15%) Final exam 35%

5 Who needs biomechanics? Ergonomists postural strain, back injuries, repetitive strain injuries, etc Rehabilitators (e.g. physiotherapy, occupational therapy) mechanical function of musculoskeletal system

Musculoskeletal Injury Many different disciplines have a

However, of all the scientific disciplines, physics and

injury highlights biomechanics as the logical discipline

6 Musculoskeletal Injury Many different disciplines have a role to play in a comprehensive understanding of injury. However, of all the scientific disciplines, physics and its sub-discipline mechanics are arguably most central to the study of injury. The fundamental relation between mechanical energy and injury highlights biomechanics as the logical discipline to study the causes and effects of human musculoskeletal injury. Whiting & Zernicke, 1998 Sports (e.g. coaches, physical educators) optimal sports performance, injury prevention 22 Mechanics of Exercise 24 6

these terms are unfamiliar: What profession are you most interested in? A.

superior / inferior sagittal / transverse / vertical axes concentric / eccentric /

7 Research and innovation (e.g. biomedical engineers, scientists) Know Your Anatomical Terms iclicker If these terms are unfamiliar: What profession are you most interested in? A. Ergonomics B. Rehab (e.g. physiotherapist, occupational therapist) C. Sports (e.g. coach, physical educator) D. Medicine E. Other (e.g. biomedical engineering, chiropractor, dentist) distal / proximal medial / lateral superior / inferior sagittal / transverse / vertical axes concentric / eccentric / isometric flexion / extension dorsiflexion / plantar flexion Review them! The course text, BPK 142 (and 143 if you have it), and have relevant information

Prerequisites! iclicker Movement Analysis List joint movement and the main agonists for each action. State whether the muscle is working concentrically or eccentrically.

8 Prerequisites! iclicker Movement Analysis List joint movement and the main agonists for each action. State whether the muscle is working concentrically or eccentrically. In the down phase of the squat the quadriceps (specifically the three vastus muscles) are: A. Inactive B. Contracting concentrically C. Contracting eccentrically D. Contracting isometrically 30 8

The Human Machine: Biomechanics in Daily Life.

The Human Machine: Biomechanics in Daily Life www.fisiokinesiterapia.biz Biomechanics The study or application of mechanics to biological systems. The study of the forces that act on the body and their