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AquOTic water competency intervention improves outcomes in children with autism

AquOTic water competency intervention improves outcomes in children with autism
Photo by Navy Medicine / Unsplash
Key Takeaway
Consider AquOTic as a promising occupational therapy-based water competency intervention for children with autism, but recognize the evidence is preliminary due to the pre-post design.

This pre-post cohort study, nested within a larger randomized controlled trial, evaluated the AquOTic intervention—a manualized 10-week occupational therapy-based water competency program—in 37 children (28 boys) on the autism spectrum aged 5 to 9 years. The intervention was delivered at a County Board of Developmental Disabilities therapy pool. Outcomes were assessed using the Canadian Occupational Performance Measure (COPM) and Goal Attainment Scaling (GAS).

Compared with baseline, post-intervention GAS T scores and COPM Performance and Satisfaction scores were significantly higher, with large effect sizes (d = 2.1–2.3). No absolute numbers, p-values, or confidence intervals were reported. Safety data, including adverse events and discontinuations, were not reported.

Key limitations include the pre-post design without a concurrent control group, which precludes causal inference. The small sample size and lack of long-term follow-up further limit generalizability. Additionally, the study did not report on blinding or potential confounders.

Despite these limitations, the findings highlight the potential value of occupational therapy-based water competency interventions for improving water safety skills in children with autism. Clinicians should interpret these results cautiously and consider them as preliminary evidence supporting further research with more rigorous designs.

Study Details

Study typeRct
Sample sizen = 37
EvidenceLevel 2
PublishedMay 2026
View Original Abstract ↓
IMPORTANCE: There is a critical need for therapeutic water competency (water safety and swim skills) interventions tailored to meet the needs of children on the autism spectrum, a group that is at high risk for drowning. OBJECTIVE: To examine the effect of AquOTic on caregiver- and therapist-based water competency goals for children on the autism spectrum. DESIGN: Pre-post cohort design based on a larger randomized controlled trial. SETTING: County Board of Developmental Disabilities therapy pool. PARTICIPANTS: Children on the autism spectrum (N = 37; 28 boys) ages 5 to 9 yr were recruited from the local community. INTERVENTION: AquOTic is a manualized 10-wk occupational therapy-based water competency intervention for children on the autism spectrum. AquOTic incorporates evidence-based therapeutic techniques and embeds individualized therapy (interventionist-child dyads) in a group environment. OUTCOMES AND MEASURES: Canadian Occupational Performance Measure (COPM) and Goal Attainment Scaling (GAS) were completed at baseline and post intervention. RESULTS: Children showed significantly higher GAS T scores and COPM Performance and Satisfaction scores post-AquOTic compared with baseline (effect size d = 2.1-2.3). All goals mapped onto the Occupational Therapy Practice Framework (4th ed.), with motor skills emerging as the most common category for both caregiver- and therapist-derived goals, followed by safety awareness in the aquatic environment and sensory functions. CONCLUSIONS AND RELEVANCE: Children on the autism spectrum demonstrated improved caregiver- and therapist-based water competency goals following the AquOTic intervention. Plain-Language Summary: This study examined the effect of AquOTic, an occupational therapy-based intervention, on parent/caregiver- and therapist-based goals related to water safety and swim skills among children on the autism spectrum. Caregivers identified goals for their children, and therapists developed goals that guided the intervention. After completing the 10-wk intervention, children showed improvements in both caregiver perceptions of their performance and satisfaction with goals set as well as therapist-rated goals. Our results highlight the value and effectiveness of an occupational therapy-based water competency intervention to improve water competency among children on the autism spectrum.
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