Motor skills
Activities or tasks that require voluntary head, body, and or limb movements to achieve a specific purpose or goal.
Motor Learning
The study of the acquisition of motor skills, the performance enhancement of learned or highly experienced motor skills, or the reacquisition of skills that are difficult to perform or cannot be performed because of injury.
Motor development
Study of human development from infancy to old age with specific interest in issues related to either motor learning or motor control.
Skill
An acticity or task that has a specific purpose or goal to achieve; an indicator of quality of performance
Actions
Motor skills; Involves voluntary movement.

Movements
Behavioral characteristics of specific limbs or a combination of limbs that are component parts of an action or motor skill.
Difference of Movement and action
A variety of movements can accomplish the same action goal.
Distinguishing Movement from skills
1. People learn actions especially when they begin to learn or relearn motor skills. 2.

People adapt movement characteristics to achieve a common action goal. 3. People evaluate motor skill performance and movements with different types of measures.

Measurement of Motor skill
Related to its outcome; i.e.

distance a person walked, number of points shoot was worth.

Measurement of movement
Related to specific characteristics of body, head, limb, and muscle activity.
Discrete Motor Skill
A motor skill with clearly defined movement beginning and end points, usually requiring a simple movement.
Continuous Motor skill
A motor skill with arbitrary movement beginning and end points.

These skills usually involve repetitive movements.

Serial Motor skill
A motor skill involving a series of discrete skills.
Environmental context
The supporting surface, objects, and or other people involved in the environment in which a skill is performed.
Closed Motor skill
A motor skill performed in a stationary environment where the performer determines when the action begins.
Open Motor Skill
A motor skill that involves a non stable, unpredictable environment where an object or environmental context is in motion and determines when to being the action.
Taxonomy
A classification system organized according to relationships among the component characteristics of the group of items or objects being classified.

Regulatory conditions
Characteristics of the environmental context (other things in space) that determine (regulate) the movement characteristics needed to perform an action.
Intertrial Variability
An environmental characteristic in Gentile's taxonomy of motor skills. The term refers to whether the regulatory conditions associated with the performance of a skill in one situation or for one trial are present or absent in the next situation or trial.
Why use Taxonomy
1. Useful guide for evaluation of movement capabilities and limitations 2. toll to select appropriate activities to help increase skill performance capabilities.

3. Able to chart individual progress of motor skill.