Biomechanics Midterm

Study Guide

Definitions

  • Statics
  • Dynamics
  • Kinetics
  • Kinematics
  • Kinesiology
  • Sports Medicine
  • Mechanics
  • Biomechanics
  • Inertia
  • Mass
  • Net force
  • Center of gravity
  • Concentric
  • Eccentric
  • Isometric
  • Agonist
  • Antagonist
  • Stabilizer
  • Neutralizer

Quantitative vs. Qualitative

  • What is the difference between quantitative and qualitative?
  • What are some examples of each?

Metric Conversions

  • 0.21 km = ______m
  • 3.64 cm = ______mm
  • 425,000 mL = ______L
  • 2.7 m = ______km
  • 0.000895 m = ______cm
  • Word problems
  • Ex: A dollar bill is 15.6 cm long. If 200 dollar bills were laid end to end, how many meters long will be the line by?

Directional Terms

  • Three planes of the body?
  • Three axes?
  • Relationship between the planes and axes?
  • Directions
  • Anterior/Posterior
  • Superior/Inferior
  • Medial/Lateral
  • Deep/Superficial
  • Proximal/Distal
  • Movements
  • Flexion
  • Extension
  • Abduction
  • Adduction
  • Ulnar deviation
  • Radial deviation
  • Supination
  • Pronation
  • Inversion
  • Plantarflexsion
  • Dorsiflexion
  • Rotation
  • Internal Rotation
  • External Rotation
  • Horizontal Abduction
  • Horizontal Adduction
  • Elevation
  • Depression
  • Lateral Bending
  • Movement Analysis
  • Examples:
  • Walking
  • Running
  • Throwing
  • Push Up

Mechanical Loading

  • Load – Deformation Curve
  • What are the types of mechanical loading? Draw them on the curve.

Vectors

  • Vectors have a ______and ______.
  • Word problems
  • Scalar
  • Biplanar
  • Tip to tail method
  • Sine, cosine, tangent method

Kinetic Concepts Problems

  • Examples:
  • A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object.
  • Calculate the pressure produced by a force of 800 N acting on an area of 2.0 m2.
  • A force of 20 N is applied perpendicular to the end of a bar of length 0.5 m. Calculate the torque produced by the force.

Bone Basics

  • What are the functions of human bones?
  • What are the differences between cortical and trabecular bone?
  • What are the four types of bones? Their function? Examples of each?
  • Process of bone remodeling and Wolff’s Law.
  • Be able to recognize each of the bone injuries we discussed in class (Greenstick, spiral, compression, stress fractures; osteoporosis; female athlete triad)

Human Skeletal Articulations (Joints)

  • What are the types of joints and what is the function of each?
  • Discuss each type of connective tissue, including cartilage (articular and fibrocartilage)
  • What factors affect joint flexibility?
  • Describe each type of stretching we talked about in class (static, passive, active, dynamic, PNF).

Human Skeletal Muscle

  • What are the properties human skeletal muscle?
  • Identify the structures of human skeletal muscle.
  • Label the components of a muscle fiber.

  • What is a motor unit?
  • What is the difference between fast and slow twitch muscle fibers?
  • How does the training for power and endurance differ?
  • Compare and contrast the characteristics of parallel and pennate muscles.