Biomechanics, Flexibility & Nutrition Flashcards
__________ evaluates the motion of a living organism and the action of the forces on it.
Biomechanics
The job of the personal trainer is to:
A. Get your client from where they are to where they want to go.
B. Bridge the gap.
C. Help them get to their goals they can’t do on their own safely and effectively.
D. All the above
D. All the Above
To Get MAX PERFORMANCE you need _________ and _________ Efficiency.
Mechanical & Psychological Efficiency
The study of movement itself without regard to forces on it (Analysis includes speed, distance, and acceleration).
Kinematics
The study of forces acting on system.
Kinetics
The scientific and artistic study of human body movement.
Kinesiology
A push or a pull that will start something in motion, stop its motion, speed it up or slow it down.
Force
Forces generated by the body tissues and their effect on movement.
Internal Forces
Forces that act against the human body and can be produced by an external object or in reaction to the voluntary exertion of force against an external object.
(Gravity, Bodyweight, Water, Resistance Bands, etc)
External Forces
Measurement of objects in motion.
Momentum
The internal force that resists the applied force is called ______. The deformation of the length caused by the external forces is called a ________.
Stress / Strain
The steps of Biomechanical Analysis
- Description:
Develop a theoretical model of the most effective technique and describe what it would look like. Determine what you want to see when you observe your clients. - Observation:
Observe the performance of your client to determine what that person’s technique actually looks like. - Evaluation:
Compare the individualized ideal technique to the observed performance. Identify and evaluate the errors. - Instruction:
Educate the client by providing feedback and the instruction necessary to correct those errors.
True or False:
Vectors are the quantity that can be fully described by its magnitude (example: mass of dumbbell would be same in gym as it would be on moon even though weight changes).
Scalars are things that have both magnitude and direction (example: dumbbell would weigh more on earth than moon).
False.
Scalars are the quantity that can be fully described by its magnitude and Vectors are things that have both magnitude and direction.
The rotational analogue of force (the load).
Torque
The shortest distance between the force vector and the joint axis.
Moment Arm
Movement that is due to one joint moving about its axis.
Single Joint Movement
Movement produced due to several joints working together.
Compound Joint Movement
The scientific study of the measurements and proportions of the human body.
Anthopometry
What is the law that states an object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force?
Newton’s First Law of Motion
An _______ chain is one in which movement of one joint is independent of the other joints in the chain…
…while a _________ chain is one in which movement of one joint causes the other joints in the chain to move in a predictable manner. (Ex: the foot or hand is in contact with the surface on which you are exercising).
Open / Closed
Bench press, Leg extension, Hamstring curl, Lat pulldown are examples of
A. Open Chain Exercises
B. Closed Chain Exercises
A. Open Chain Exercises
Push-ups, Lunges, Deadlifts. Tricep dips are examples of
A. Open Chain Exercises
B. Closed Chain Exercises
B. Closed Chain Exercises
The rate at which work is done.
Power
True or False:
In biomechanical analysis, we first analyze the kinetics (forces of the movement).
False