Physical: acceleration and coordination of movement, agility, balance, lower extremity coordination, reaction time

Cognitive: selective attention, visual processing

Social: joint attention

2 or more

none

1. child follows a parent or coach as the leader
2. the leader accelerates or decelerates, and the shadow (child) does the same action while keeping constant distance

Yes

Change the environment: have the coach provide a verbal and/or visual cue when they are going to run faster or slower to decrease cognitive demand

Change the task: decrease the length of time of the activity to decrease physical demand 

Change the environment: add obstacles around the play area to increase physical demand 

Change the task: increase physical demand by increasing the duration of the activity and/or number of accelerations and decelerations

• I will be able to accurately respond to accelerations and decelerations 8 out of 10 times (i.e., does not bump into coach)
• I can speed up and slow down as the leader does