Autism & Developmental

Brief Report: Obesogenic Behaviors of Children with Developmental Disabilities During Summer.

Brazendale et al. (2021) · Journal of autism and developmental disorders 2021
★ The Verdict

A structured daily schedule at summer camp helps kids with developmental disabilities move more, eat better, and sleep earlier.

✓ Read this if BCBAs who run or consult on summer programs, respite camps, or extended-school-year services.
✗ Skip if Practitioners looking for drug or diet-supplement interventions.

01Research in Context

01

What this study did

Brazendale et al. (2021) watched kids with developmental disabilities across two kinds of summer days.

Some days were packed: set wake-up, group games, scheduled meals, lights-out time. Other days had little structure: free play, open snack table, no bedtime rules.

The team scored activity, food choices, and sleep timing each day.

02

What they found

On structured camp days the kids moved more, picked healthier snacks, and went to bed earlier.

The same children on loose days sat longer, grazed on chips and soda, and stayed up late.

03

How this fits with other research

Whaling et al. (2025) looked at a big national survey and said autistic kids usually miss sleep guidelines. That sounds opposite, but the survey captured normal home life while Keith’s study added a tight camp schedule. Structure, not diagnosis, explains the gap.

Ku et al. (2020) reviewed parent actions and found Mom or Dad joining the game matters more than Mom or Dad simply being active. Keith’s camp staff filled that “active partner” role all day.

Koegel et al. (2019) ran a two-week inclusive camp and hit IEP social goals. Keith shows the same camp setting can also fix health habits at the same time.

04

Why it matters

Summer slide isn’t just reading loss; it’s also weight gain and wonky sleep. You can write a simple visual schedule—morning walk, fruit snack, noon game, lights-out chart—and get the same boost without running a full camp. Try it next extended break or even on weekends.

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→ Action — try this Monday

Post a 30-minute interval schedule with movement, snack, and calm-down blocks and track sleep onset that night.

02At a glance

Intervention
not applicable
Design
pre post no control
Sample size
17
Population
developmental delay
Finding
positive

03Original abstract

The 'Structured Days Hypothesis' suggests that children's obesogenic behaviors (e.g., activity, diet, sleep, and screen time) are less favorable during times when there is less-structure to a child's day (e.g., summer). To compare obesogenic behaviors of children with developmental disabilities (DD) during summer on days with differing amounts of 'structure'. Seventeen children with DD (mean age 9.8 years) attending a day camp wore a Fitbit© activity monitor on the non-dominant wrist during summer, and parents completed a survey packet, to capture obesogenic behaviors. Participants displayed improved physical activity levels, diets, and sleep timing on camp days versus other days. Providing children with DD 'structure' over summer is a potential intervention approach requiring further investigation.

Journal of autism and developmental disorders, 2021 · doi:10.1177/1559827617750576