Biomechanics Final Exam
What is biomechanics and what are the foundations of biomechanics that are used to describe human
movement? - Answer-Study of mechanical laws in relation to movement or structure of the human
body. (study of loads, motion, stress, strain of solids and fluids)
How can an understanding of mechanical principles and their application to human movement benefit
coaches or sport scientists? - Answer-Can help to determine appropriate condtioning and help prevent
injuires. Can help to determine if athlete needs to work ROM or needs to strech more to reduce
soreness.
In sport mechanics, quantitative and qualitative measures can be used to describe technique. What is an
example of a quantitative measure? - Answer-(something that can be measured) an athlete can do 20
reps on bench at 225. (quantity or numbers)
In sport mechanics, quantitative and qualitative measures can be used to describe technique. What is an
example of a qualitative measure? - Answer-(something that can be described using senses) an athlete's
second throw was smoother than the first. (quality or feeling)
What does technique mean in sport? - Answer-a way of carrying out a certain skill in a sport.
The musculoskeletal system is a series of levers. Describe how the parts of the human body form the
components of a lever to allow for human movement. - Answer-Bones, ligaments, and muscles are the
structures that form levers in the body to create human movement. In simple terms, a joint (where two
, or more bones join together) forms the axis (or fulcrum), and the muscles crossing the joint apply the
force to move a weight or resistance.
Lever systems are characterized as first-, second-, or third-class levers. Describe how the components of
a lever system are arranged for each class. - Answer-1st class- Fulcrum is in the middle of force and
load.
2nd class- load is in the middle of force and fulcrum.
3rd class- force is in the middle of load and fulcrum.
Kinetics and kinematics are used to describe human movement. What is the definition of each of these
terms? - Answer-Kinetics- study of the relationships between the force system acting on a body and the
changes it produces in body motion
Kinematics- a branch of mechanics that deals with the geometry of the motion of objects, including
displacement, velocity, and acceleration, without taking into account the forces that produce the motion
Why measure or evaluate in sport? - Answer-To help determine progress and help with developing
training programs to help the athlete get better.
What does validity of measurement mean? - Answer-How valid the test is so if it is actually accurately
measuring what you want it to measure.
What does reliability of measurement mean? - Answer-How consistent the measurement is. (Stability)
There are three main types of muscle contraction that may or may not occur when an athlete performs
resistance training. What are these? - Answer-Concentric- muscle shortens under tension
Eccentric- muscle lengthens under tension
Isometric- does not change under tension
An elite sprinter runs 100 m in 10 s. What is his speed? - Answer-10 m/s
What is biomechanics and what are the foundations of biomechanics that are used to describe human
movement? - Answer-Study of mechanical laws in relation to movement or structure of the human
body. (study of loads, motion, stress, strain of solids and fluids)
How can an understanding of mechanical principles and their application to human movement benefit
coaches or sport scientists? - Answer-Can help to determine appropriate condtioning and help prevent
injuires. Can help to determine if athlete needs to work ROM or needs to strech more to reduce
soreness.
In sport mechanics, quantitative and qualitative measures can be used to describe technique. What is an
example of a quantitative measure? - Answer-(something that can be measured) an athlete can do 20
reps on bench at 225. (quantity or numbers)
In sport mechanics, quantitative and qualitative measures can be used to describe technique. What is an
example of a qualitative measure? - Answer-(something that can be described using senses) an athlete's
second throw was smoother than the first. (quality or feeling)
What does technique mean in sport? - Answer-a way of carrying out a certain skill in a sport.
The musculoskeletal system is a series of levers. Describe how the parts of the human body form the
components of a lever to allow for human movement. - Answer-Bones, ligaments, and muscles are the
structures that form levers in the body to create human movement. In simple terms, a joint (where two
, or more bones join together) forms the axis (or fulcrum), and the muscles crossing the joint apply the
force to move a weight or resistance.
Lever systems are characterized as first-, second-, or third-class levers. Describe how the components of
a lever system are arranged for each class. - Answer-1st class- Fulcrum is in the middle of force and
load.
2nd class- load is in the middle of force and fulcrum.
3rd class- force is in the middle of load and fulcrum.
Kinetics and kinematics are used to describe human movement. What is the definition of each of these
terms? - Answer-Kinetics- study of the relationships between the force system acting on a body and the
changes it produces in body motion
Kinematics- a branch of mechanics that deals with the geometry of the motion of objects, including
displacement, velocity, and acceleration, without taking into account the forces that produce the motion
Why measure or evaluate in sport? - Answer-To help determine progress and help with developing
training programs to help the athlete get better.
What does validity of measurement mean? - Answer-How valid the test is so if it is actually accurately
measuring what you want it to measure.
What does reliability of measurement mean? - Answer-How consistent the measurement is. (Stability)
There are three main types of muscle contraction that may or may not occur when an athlete performs
resistance training. What are these? - Answer-Concentric- muscle shortens under tension
Eccentric- muscle lengthens under tension
Isometric- does not change under tension
An elite sprinter runs 100 m in 10 s. What is his speed? - Answer-10 m/s
