Preschool age children:
Children aged 1 to 5 would naturally spend most of their day crawling, squatting, climbing, walking, and running while exploring the world around them and any preschool will increase the amount of sitting children do, which means less time moving. Preschool starts "teaching" children that sitting still is "good", and they learn the opposite (exploring and being active) is "bad". Going to preschool almost always means your toddler will be wearing shoes for a significant part of the day and this starts to weaken and deform their perfect feet.
Because of the amount of sitting in elementary school, encouraging your children's school to become an Active School and participate in Brain Breaks, Energizers, and Instant Recess. GoNoodle is a fun resource schools around the country use.
We should do whatever we can to decrease the weight of students backpacks.
Encouraging middle school students to stay active with recreational sports and encouraging them to start to engage in regular exercise that they enjoy can be very beneficial. Kids may not want to play competitive basketball or soccer any more but might enjoy joining a ultimate frisbee or dodgeball team or picking up a sport like rock climbing or obstacle course racing.
Middle school aged kids will also benefit from doing a daily menu to restore/maintain good posture and may have fun doing group workouts like this:
Doing a regular menu of exercises including doing a Supine Groin Stretch or the Tower several times a week can really help undo the bad posture habits that come from reading, computers, cellphones, and studying.