KIN 321 Biomechanics of Human
Movement Exam 1
Biomechanics - Answer--Study of forces and their effect on living system
-Study of the structure and function of biological systems by means of the methods of mechanics
Sport and Exercise Biomechanics - Answer--Study of force and their effects on humans in exercise and
sport
2 main goals of sport and exercise biomechanics - Answer--PERFORMANCE IMPROVEMENT and INJURY
PREVENTION AND REHABILITATION.
-Performance improvement includes technique, equipment, and training improvement.
-Injury prevention and rehabilitation examples are techniques to reduce injury- "heads-up" tackling in
football to reduce cervical spine injuries and equipment designed to reduce injury- gymnastics vault
shape.
Link biomechanics to the development of Kinesiology as a field - Answer--Kinesiology has been around
since the 1800's, while biomechanics has only been around since the 1960's. Biomechanics brought
more RESEARCH and PEOPLE to the field of kinesiology. We are now able to digitally capture the
movements of the body and make adjustments accordingly. With this, we can refine equipment,
strategies, and overall performance within sports. Being able to apply an equation to the movements
and forces that our bodies are performing can help improve the way athletes participate. Overall
,biomechanics has made it possible for us to film and measure mechanics of the body(ROLE OF
TECHNOLOGY).
Mechanics - Answer--The analysis of forces and the effects of forces acting on objects.
**our course is primarily focused on rigid-body mechanics and fluid mechanics.**
Organization of mechanics - Answer--Rigid-body mechanics
-Deformable-body mechanics
-Fluid mechanics
-Relativistic mechanics
-Quantum mechanics
**our course is primarily focused on rigid-body mechanics and fluid mechanics.**
Mechanics: Rigid Body Mechanics - Answer--Ignore the deformation, so forces just accelerate objects if
force is unopposed
-Deformation is zero or so small that it can be neglected
Units of measure in biomechanics: Mass - Answer--Is the measure of inertia with examples of units
being grams and kilogram
Units of measure in biomechanics: Length - Answer--The space in which action occurs with the
examples of SI units: meters (m), centimeters (cm), and kilometers (km)
-American: feet (ft), inches (inch), and mile
Units of measure in biomechanics: Time - Answer--The measure of the performance with the examples
of seconds, minutes, and hour
, Inertia - Answer--Property of an object to resist changes in its motion
Force - Answer--A push or a pull
-come in pairs of equal and opposite reactions
-Accelerate or deform objects
-May cause objects to start, stop, speed up, slow down or change direction
-Units: Pound (lb) or SI's Newton (N)
-Described as vectors
Vectors - Answer--Mathematical representation of anything defined by its size of magnitude and its
direction (We use arrows)
-Show size of force and point of application
-Directional line of action
-Sense (push or pull on line)
Classifying forces - Answer--Internal
-External
Classifying forces: Internal - Answer--Forces that act within the object or system whose motion is being
investigated
-Can't produce change in motion of body's center of mass- need an external force to do that
-Consist of compressive, tensile, shear, torsion, and 3-point bending
Internal force: Compressive - Answer--Pushing together
Internal force: Tensile - Answer--Pulling apart
Movement Exam 1
Biomechanics - Answer--Study of forces and their effect on living system
-Study of the structure and function of biological systems by means of the methods of mechanics
Sport and Exercise Biomechanics - Answer--Study of force and their effects on humans in exercise and
sport
2 main goals of sport and exercise biomechanics - Answer--PERFORMANCE IMPROVEMENT and INJURY
PREVENTION AND REHABILITATION.
-Performance improvement includes technique, equipment, and training improvement.
-Injury prevention and rehabilitation examples are techniques to reduce injury- "heads-up" tackling in
football to reduce cervical spine injuries and equipment designed to reduce injury- gymnastics vault
shape.
Link biomechanics to the development of Kinesiology as a field - Answer--Kinesiology has been around
since the 1800's, while biomechanics has only been around since the 1960's. Biomechanics brought
more RESEARCH and PEOPLE to the field of kinesiology. We are now able to digitally capture the
movements of the body and make adjustments accordingly. With this, we can refine equipment,
strategies, and overall performance within sports. Being able to apply an equation to the movements
and forces that our bodies are performing can help improve the way athletes participate. Overall
,biomechanics has made it possible for us to film and measure mechanics of the body(ROLE OF
TECHNOLOGY).
Mechanics - Answer--The analysis of forces and the effects of forces acting on objects.
**our course is primarily focused on rigid-body mechanics and fluid mechanics.**
Organization of mechanics - Answer--Rigid-body mechanics
-Deformable-body mechanics
-Fluid mechanics
-Relativistic mechanics
-Quantum mechanics
**our course is primarily focused on rigid-body mechanics and fluid mechanics.**
Mechanics: Rigid Body Mechanics - Answer--Ignore the deformation, so forces just accelerate objects if
force is unopposed
-Deformation is zero or so small that it can be neglected
Units of measure in biomechanics: Mass - Answer--Is the measure of inertia with examples of units
being grams and kilogram
Units of measure in biomechanics: Length - Answer--The space in which action occurs with the
examples of SI units: meters (m), centimeters (cm), and kilometers (km)
-American: feet (ft), inches (inch), and mile
Units of measure in biomechanics: Time - Answer--The measure of the performance with the examples
of seconds, minutes, and hour
, Inertia - Answer--Property of an object to resist changes in its motion
Force - Answer--A push or a pull
-come in pairs of equal and opposite reactions
-Accelerate or deform objects
-May cause objects to start, stop, speed up, slow down or change direction
-Units: Pound (lb) or SI's Newton (N)
-Described as vectors
Vectors - Answer--Mathematical representation of anything defined by its size of magnitude and its
direction (We use arrows)
-Show size of force and point of application
-Directional line of action
-Sense (push or pull on line)
Classifying forces - Answer--Internal
-External
Classifying forces: Internal - Answer--Forces that act within the object or system whose motion is being
investigated
-Can't produce change in motion of body's center of mass- need an external force to do that
-Consist of compressive, tensile, shear, torsion, and 3-point bending
Internal force: Compressive - Answer--Pushing together
Internal force: Tensile - Answer--Pulling apart
