Interaction Among Constraints

importance of interaction among constraints

• all aspects of development are influenced by multiple constraints

• see each individual as unique

• informs design & implementation of developmentally appropriate learning tasks

paralympics

• since 1960

• summer: wheelchair sports, sitting volleyball, swimming, powerlifting

• winter: alpine skiing, para ice hockey, wheelchair curling

physical education settings

• build lessons on model of constraints

• young children change with growth & maturation

• classes can vary greatly in physical attributes

• equipment, environments, and task rules must be changed to be developmentally appropriate

ecological task analysis

• analysis of how task or skill is accomplished focusing on critical components that influence movement

• emphasizes interaction of environmental, task & individual constraints

• allows for creation of developmentally appropriate lesson plans & assessment of movement ability

• evaluates movement based on developmental continuum

interacting constraints: case studies

• by manipulating constraints we can make changes in motor development & behaviour

• small change will allow wide variety of behaviours to emerge

• after identifying which constraint to change, consider how the constraints interact with each other & where the interaction helps achieve the goal or works against it

ecological task analysis: throwing

object size: small, medium, large

throw distance: short, medium, long

object weight: light, moderate, heavy

accuracy required: none, little, moderate, much

target speed: stationary, slow, moderate, fast

accel/decel of target: none, steady speed, decelerating, accelerating

target direction: none, left/right, toward, away from thrower