BIOMECHANICS FINAL EXAM 2025
QUESTIONS AND ANSWERS
What is biomechanics and what are the foundations of biomechanics that are used to describe
human movement? - ANS 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? - ANS 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? - ANS (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? - ANS (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? - ANS 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. - ANS 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.
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, Lever systems are characterized as first-, second-, or third-class levers. Describe how the
components of a lever system are arranged for each class. - ANS 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? - ANS 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? - ANS To help determine progress and help with
developing training programs to help the athlete get better.
What does validity of measurement mean? - ANS How valid the test is so if it is actually
accurately measuring what you want it to measure.
What does reliability of measurement mean? - ANS 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? - ANS 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? - ANS 10 m/s
Michael Johnson broke the 400 m world record in 1999 with a time of 43.18 s. His splits for
each 50 m were 6.1 s (50 m), 5.3 s (100 m), 5.0 s (150 m), 5.2 s (200 m), 5.3 s (250 m), 5.3 s (300
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QUESTIONS AND ANSWERS
What is biomechanics and what are the foundations of biomechanics that are used to describe
human movement? - ANS 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? - ANS 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? - ANS (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? - ANS (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? - ANS 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. - ANS 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.
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
, Lever systems are characterized as first-, second-, or third-class levers. Describe how the
components of a lever system are arranged for each class. - ANS 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? - ANS 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? - ANS To help determine progress and help with
developing training programs to help the athlete get better.
What does validity of measurement mean? - ANS How valid the test is so if it is actually
accurately measuring what you want it to measure.
What does reliability of measurement mean? - ANS 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? - ANS 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? - ANS 10 m/s
Michael Johnson broke the 400 m world record in 1999 with a time of 43.18 s. His splits for
each 50 m were 6.1 s (50 m), 5.3 s (100 m), 5.0 s (150 m), 5.2 s (200 m), 5.3 s (250 m), 5.3 s (300
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
