Arizona State University

Welcome to
KIN 335 - Biomechanics

INSTRUCTOR: Peter Vint, Ph.D.
PHONE: See in-class notes
LECTURE TIME:M, F, 8:40-9:30 am
LAB TIMES: W, 8:40-10:30 am, 10:40 am-12:30 pm, 1:40-3:30 pm
OFFICE HOURS:M, F 7:30-8:30 am, by appointment
TA OFFICE HOURS:Th 2:00-4:00 pm, by appointment

Overview and Objectives: The purpose of KIN 335 is to introduce students to concepts of mechanics as they apply to human movement, particularly those pertaining to exercise, sport, and physical activity. The student should gain an understanding of the mechanical and anatomical principles that govern human motion and develop the ability to link the structure of the human body with its function from a mechanical perspective. At the completion of this course it is desired that each student be able to: 1) describe motion with precise, well-defined mechanical and anatomical terminology; 2) understand and quantify linear and angular characteristics of motion; 3) understand the quantitative relationships between angular and linear motion characteristics of a rotating body; and 4) understand and quantify the cause and effect relationship between force and linear and angular motion.

Required textbook: McGinnis, P.M. (1999). Biomechanics of Sport and Exercise. Champaign, IL: Human Kinetics

Assigned readings: Additional readings from the biomechanics literature will be assigned for lecture and lab discussions. Readings will be available in the main office of PEBE (107B) and in the Biomechanics Lab (PEBE 177). Reading assignments accompanying the lectures are noted on the calendar below. Laboratory reading assignments are identified in the laboratory handouts.

Other materials: The following items are also required for this course: 1) a scientific calculator (with trigonometric functions), 2) a ruler with mm increments; and 3) the KIN 335 course notes. The course notes will be made available online at least 24 hours prior to the lecture in which they will be introduced. It is the students' responsibility for printing these notes and bringing them to class.

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Exams300 points
Quizzes60 points (best 6)
Lab Assignments40 points (4 assignments)

Your course grade will be based on 400 possible points. The following represents the point breakdown for assigned letter grades using a 90-80-70-60 scale.

Points EarnedLetter Grade
below 240E

I DO NOT CURVE the grades that are earned during exams, quizzes or individual assignments. Depending on the final distributions of scores, however, I may chose to use a plus/minus to reward those students who are especially close to the next higher letter grade (e.g., 78.5% may be either a C+ or B ). I will not use the plus/minus scale to lower your grade (e.g., 70.1% will be a C, not a C or D+).

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Attendance: Attendance is not formally part of the course grading system. However, you are expected to attend all lecture and lab sessions and to arrive in class at or before the designated starting time. You are solely responsible for obtaining any and all course-related materials that might have been missed because of an absence.

Late policy: All assignments will have a specific due date. A 5% deduction will be made for each 24-hour period (beginning at the start of the class period on the due date) that an assignment is turned in late. Note that any late assignment must be turned in directly to the secretary in the main office of PEBE (107B) and time stamped.

Neither missing class nor arriving late for class on the day an assignment is due prevents you from incurring a late penalty. Once an assignment is handed back, no late assignments will be accepted.

Exam and Quiz Format: Exams and quizzes will consist of both objective and subjective material. The objective portion of the test may include but is not limited to: Multiple Choice; True/False; True/False Correction; Matching. The subjective portion may include but is not limited to Mathematical Problems; Short Essay; Applied Analysis; Drawing and Labeling. There will be three exams during the Fall semester (including the final). Since each class builds upon the material covered in the previous class, all exams may be thought of as being comprehensive.

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There will be a minimum of 6 quizzes during the Fall semester. If more than 6 quizzes are given, only your best 6 quiz scores will count toward your final course grade. Quizzes may be given during either lab or lecture periods. Quizzes may be either announced or unannounced. Quizzes will always relate to topics covered in lecture and/or laboratory.

Laboratory Procedures: Laboratory sessions have been scheduled to correspond with the lecture material. These labs are scheduled for Wednesdays. Each section will meet in the Biomechanics laboratory (PEBE 177) unless otherwise noted.

Attendance: Laboratory attendance is mandatory for successful completion of this course. However, if you know you will be unable to attend your normally scheduled lab session you may attend the other session taught by the lab instructor if you receive approval from the instructor at least 1 day prior to the date you will miss. If this is not possible then you must see the lab instructor to make alternate arrangements. You may not switch lab sections without the lab instructor's prior approval.

Laboratory Handouts: All handouts will be made available online at least 48 hours prior to the scheduled lab. This will allow you to read the material and come prepared to lab. If you have questions, these can be answered at the beginning of the lab. The handouts will outline the purpose, procedures, analysis and discussion questions for the lab. Many times, assigned readings will be made available for reading and/or copying in the main office of PEBE (107B) and in the biomechanics lab (PEBE 177). These papers are not optional and it is your responsibility to read them. They will definitely be reflected in exams and quizzes.

Bonus Point Opportunities: Up to 20 bonus points may be awarded for successful completion of various assignments given during the semester. You will be notified of these opportunities as they become available.

Extra Help/Tutoring Opportunities: Any student having difficulty with the material in the course is first encouraged to see me outside of class for help. I am willing to do just about anything to help you understand the material that is presented in this class (I have actually stood on my head before!). The easiest time to reach me is during my office hours but you can schedule another time if it is mutually convenient. In the event that you desire additional help, I will be happy to help you locate a tutor.

Writing Format: All written work-handwritten and typewritten-must be presented to me in the following manner:

  • Unless stated specifically to the contrary, answers to all written questions (short answer/essay) must be written in complete sentences. Answers that are not written in complete sentences (or close to it) will not be graded and will be awarded zero points. This rule is in effect for all lab reports, quizzes, and exams. There are no exceptions to this rule.
  • Each written document must be legible and neat. This means that I must be able to read your handwriting. It also means that I should not see scribble marks in either pen or pencil on documents you wish to be graded. Please take the time to prepare a document of which you can be proud. If you need another copy of any particular lab document, you may download it from the web.
  • Any written assignment that exceeds one page in length must be stapled in the upper left-hand corner (not paper-clipped, not ripped and folded at the corners. Stapled.). Any multi-page assignment that is not stapled will be immediately returned to you and counted as one day late ( 5%). There are no exceptions to this rule.
  • Students are expected to abide by the ASU Academic Integrity Policy on all work related to this course. Unless specifically stated to the contrary, students must complete all written work independently. This includes but is not limited to exams, quizzes, lab reports, and any bonus assignments. The full text of ASU's Academic Integrity Policy is located online at

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Tentative Calendar
Week Lecture topics Lecture materials Readings Lab topic Lab materials Things
8/25 Introduction and math review Lecture: IntroductionIntroduction Chapter 1; pp. 57-67 Math review Lab: AlgebraAlgebra
Lab: TrigonometryTrigonometry
Lab: StoichiometryStoichiometry
Dr. Rick Hinrichs will introduce class on Monday and collect student information
9/1 Linear and angular kinematics Lecture: KinematicsKinematics Chapter 5; Chapter 9; Chapter 2 (for lab) Movement description Lab: Movement TerminologyTerminology
Lab: Movement LabMovement lab
No class Monday, Math quiz
9/8 Linear and angular kinematics Recitation Problems: Problem set 1Problems #1
Problems: Problem set 1Solutions - Problems #1
Movement quiz
9/15 Relationships between displacement, velocity, and acceleration; Relationships between linear and angular kinematics Worksheet: DVADVA Worksheets
Lecture: Linear-Angular Relationships
Linear-Angular Relationships
No Lab (lecture) Curvy stuffCurvy stuff problems
Curvy stuffSolutions - Curvy stuff problems
Problems #2Problems #2
Problems #2Solutions - Problems #2
Lecture Wednesday 9/17
9/22 Uniformly accelerated motion Lecture: Projectile motionUniformly accelerated motion Handout Projectile motion Lab: Projectile motionProjectile motion lab
9/29 Uniformly accelerated motion; exam preview Mandatory recitation Problems #3Problems #3
Problems #3Solutions - Problems #3
Projectile motion quiz, projectile motion lab due
10/6 Exam 1; Exam review Wednesday: NO LAB, NO LECTURE EquationsEquation sheet Exam 1 Monday 10/6
10/13 Linear kinetics; inertia; mass; force; pressure Lecture: Linear kineticsLinear kinetics
Lecture: Basic Kinetic ConceptsBasic Kinetics
Chapter 6 Ground reaction force Lab: Linear kineticsGRF lab
10/20 Newton's laws; Impulse-momentum; coefficient of restitution Lecture: Impulse-MomentumImpulse-Momentum
Bonus #1: Klap SkateBonus #1
Chapter 3 Coefficient of restitution Lab: Coefficient of restitutionCoefficient of restitution lab
Lab: Coefficient of restitutionRabbit ball
GRF quiz, GRF lab due
10/27 Friction Lecture: FrictionFriction
Bonus #2: FrictionBonus #2
11/3 Angular kinetics; Center of mass; Moment of inertia; Torque; Angular momentum; Radial forces Lecture: Angular kineticsAngular kinetics
Lecture: Radial forcesRadial forces
Chapter 8; Chapter 10 Center of mass Lab: Center of massCenter of mass
Problems #4Problems #4
Solutions #4Solutions - Problems #4
11/10 Center of mass; Vertical jumping Lecture: Vertical jumpingVertical jumping Vertical jumping Lab: Vertical jumpingVertical jump
Section 1 dataSection 1 data
Section 2 dataSection 2 data
Section 1 dataSection 3 data
CM quiz, CM lab due
11/17 Exam 2 prep; Exam 2 Exam 2 PrepExam 2 Prep Recitation Exam 2 Friday 11/21
11/24 Exam 2 review (no new content today!) No lab Jumping lab due Monday, 11/24; No class Friday 11/28
12/1 Work, energy, and power Lecture: Work, energy, and powerWork, energy, and power Chapter 7 Recitation
12/8 Fluid mechanics; evaluations Lecture: Fluid mechanicsFluid mechanics Chapter 11 Optional recitation Reading day Wednesday
Final Exam: Tuesday, 12/16, 7:40-9:30 am

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