KNS 200 EXAM 2 STUDY GUIDE
Biomechanics - Answer -applications of mechanical principles to understand effects of
forces on physical functions and structures
Mechanics - Answer -a branch of physics that studies motion (kinematics) and the
causes of motion (kinetics)
Kinematics - Answer -study of motion
Kinetics - Answer -causes of motion
Why study biomechanics? - Answer -improve the outcomes of our movements
increase or maintain the safety and health of our tissue
Displacement - Answer -difference between initial and final positions
unit= meters
d=dfinal-dinitial
Velocity - Answer -rate of change in position
unit= meters/second
v=dfinal-dinitial/ deltaT
Acceleration - Answer -rate of change in velocity
unit= meters/second ^2
a=vfinal-vinitial/ deltaT
Mass - Answer -inertia
quantity of matter in a body
unit=kg
Force - Answer -a push or pull
F=ma
unit= Newton
Force - Answer -friction, gravity, and air resistance
generate and control movement
maintain, protect, and improve the health of the body tissues/ systems
External Force - Answer -applied by another object (ground or another person)
Internal Force - Answer -forces generated inside the body
, 1st Law of Inertia - Answer -an object at rest will stay at rest unless there is a force to
cause it to move
2nd Law of Acceleration - Answer -the change in motion of an object is proportional to
the force applied; the change in motion is in the direction
3rd Law of Action and Reaction - Answer -for every action force there is an equal and
opposite reaction (magnitude and direction)
Motion Capture - Answer -high speed cameras
micro electro mechanical systems (MEMS) sensors
electronic timing device
Force Measurement Devices - Answer -force transducers (measure forces)
force platform (ground reaction forces)
plater pressure system (pressure-force applied over a given area)
electromyography system (skeletal muscle force)
Computer Modeling and Stimulation - Answer -mathematical models of muscoskeletal
systems and structures
computer stimulation techniques
Movement Technique - Answer -precise position, prescribed movement patterns,
proper timing
Factors Influencing Technique - Answer -task
performer goal
performer characteristics
environment
law of physics
Best Technique - Answer -interaction between the goals and the performer dictate best
no one size fits all
Exercise Physiologist concerned with - Answer -enhance sport performance and
training
improve physical fitness
understanding physiological changes from physical activity
promote health and disease
Enhance Sport Performance Training - Answer -aerobic fitness testing
lactate threshold testing
body composition asesment
Harvard fatigue lab
Improve Physical Fitness - Answer -President Eisenhower 1950s
Biomechanics - Answer -applications of mechanical principles to understand effects of
forces on physical functions and structures
Mechanics - Answer -a branch of physics that studies motion (kinematics) and the
causes of motion (kinetics)
Kinematics - Answer -study of motion
Kinetics - Answer -causes of motion
Why study biomechanics? - Answer -improve the outcomes of our movements
increase or maintain the safety and health of our tissue
Displacement - Answer -difference between initial and final positions
unit= meters
d=dfinal-dinitial
Velocity - Answer -rate of change in position
unit= meters/second
v=dfinal-dinitial/ deltaT
Acceleration - Answer -rate of change in velocity
unit= meters/second ^2
a=vfinal-vinitial/ deltaT
Mass - Answer -inertia
quantity of matter in a body
unit=kg
Force - Answer -a push or pull
F=ma
unit= Newton
Force - Answer -friction, gravity, and air resistance
generate and control movement
maintain, protect, and improve the health of the body tissues/ systems
External Force - Answer -applied by another object (ground or another person)
Internal Force - Answer -forces generated inside the body
, 1st Law of Inertia - Answer -an object at rest will stay at rest unless there is a force to
cause it to move
2nd Law of Acceleration - Answer -the change in motion of an object is proportional to
the force applied; the change in motion is in the direction
3rd Law of Action and Reaction - Answer -for every action force there is an equal and
opposite reaction (magnitude and direction)
Motion Capture - Answer -high speed cameras
micro electro mechanical systems (MEMS) sensors
electronic timing device
Force Measurement Devices - Answer -force transducers (measure forces)
force platform (ground reaction forces)
plater pressure system (pressure-force applied over a given area)
electromyography system (skeletal muscle force)
Computer Modeling and Stimulation - Answer -mathematical models of muscoskeletal
systems and structures
computer stimulation techniques
Movement Technique - Answer -precise position, prescribed movement patterns,
proper timing
Factors Influencing Technique - Answer -task
performer goal
performer characteristics
environment
law of physics
Best Technique - Answer -interaction between the goals and the performer dictate best
no one size fits all
Exercise Physiologist concerned with - Answer -enhance sport performance and
training
improve physical fitness
understanding physiological changes from physical activity
promote health and disease
Enhance Sport Performance Training - Answer -aerobic fitness testing
lactate threshold testing
body composition asesment
Harvard fatigue lab
Improve Physical Fitness - Answer -President Eisenhower 1950s
