AT 250 Exam 1

• Examination of anatomical structures that contribute to producing the diverse movements we
• are capable of executing

• Interaction of these various components of the human system which produce efficient and
• economic movement

study of the skeletal system

Provides a rigid framework

Protects internal organ

Protects the framework for muscular torques which produce movement (assists mycology)

• Functions as a machine coordinating these muscular torques in producing efficient and
• economic movement

Produces red blood cells and provides Ca2+ (calcium) and phosphates

Study of the nervous system

Means of communication

System providing info back and forth through nerve receptors found in the skin to bone and back

Provides both sensory and motor facilitation

Study of muscles

Movement based on the lever system and dynamics of physics in producing movement

Mechanical Kinesiology

Study of human motion from the standpoint of physics

Examine how forces act on the body

Appropriate description of movement with respect to time and space

Disregards the forces that are either produced or result from the movement

Focuses on the forces that are produced with an action

When the body moves in a way that all parts travel the same distance, in the sametime, and in the same path

When the body undergoes a circular motion in which all parts travel through the sameangle, in the same direction, and in the same time frame.

The study of interrelationships among cells, tissue, organs, and systems of thehuman body under the Stress of Exercise

Interaction between exercise, nutrition, and health (physical and mental)·

• 3 main goals:
• Study longevity and quality of life for people through exercise, fitness, and mental stimulation
• Detect disease early and reduce risk factors of disease
• Prescribe safe and effective programs with both short-term and long-term benefits

Provides info about changes in human movement behavior across the lifespan and the influencesof these changes on motor performance

• Role of nature vs. nurture
• - How much is genetics and how much is taught
• Identification of sensitive or critical periods for motor development processes
• - Susceptible to the influence of particular lesson or event
• Discontinuity vs. Continuity of development

Studies the determining factors that result in learning that is adaptable to changing conditions, resistant to forgetting and efficient in terms of ML/MC Processes

• Sensation/Perception
• - Processing of sensory info in such a way as to interpret the sensations
• Response Selection
• - Deciding on a course of action based upon the perception
• Response Execution
• - The coordinated control of movement that executes the response or demand.

Tries to understand the effect of psychological factors on behavior in sports

Involves research on preparing individuals to teach motor skills by studying thestudent, the teacher, and the interaction b/w the student and teacher while thestudent is being prepared to become a teacher

Above

Below

Toward the front of the body

Toward the back of the body

Toward the midline of the body

Away from the midline of the body

Closer to the trunk

Away from the trunk

Toward the surface of the body

Inside the body away from the surface

Goes away from the body

Goes toward the body

Bisects the body from front and back, dividing it into left and right halves

Bisects the body laterally from side to side, dividing it into front and back halves

Divides the body into superior and inferior halves

Runs from front to back and at right angle to frontal plane

Runs from side to side and at a right angle to sagittal plane

Runs straight down through the top of the head and is at a right angle to thehorizontal plane (bring upper arm forward)

Educated guess

Going form general to specific

• Much more effective
• -We try to see if an overriding theory works in a certain situation
• -If not, then we apply it to another situation

Measures what it’s supposed to

Will it measure over, and over, and over....

A subset of a population

Measured Variable

Dependent on what you manipulate

Manipulated Variable

Nothing is being changed

Who receive the conditions

Concerned with the development of hypothesis, laws, and theories pertaining to theprocess

Research aimed at testing potential solutions to problems that present themselves inreal-world settings

How can we manage to make ourselves apply it to real world settings

Defined as a rigid bar that turns about an axis of rotation or a fulcrum

• Force (F)
• -Which is usually the muscle insertion

Axis of Rotation (A)

Resistance (R)

• 1st class: FAR
• - Designed basically to produce balanced movements when the axis is midway between the
• force and the resistance (See-Saw)
• 2nd class: ARF
• - Designed to produce force movements
• 3rd class: AFR
• - Designed to produce speed and ROM movements

Resistance Arm: Distance between the axis and the point of resistance

Force Arm: Distance between the axis and the point of force

The less force required to move the lever

• If the resistance arm = 12 inches, Resistance is 20 pounds, and the Force Arm is 24 inches. How much force do you need to apply to move the resistance?
• - 24
• What if the RA = 6 in. and FA = 30 in.?
• - 4