Objective: A growing body of evidence supports the effectiveness of body-oriented interventions (BOI) in educational contexts, showing positive influences on social-emotional competence. Nevertheless, there is a lack of systematization of the evidence regarding preschool years. This is a two-part systematic review. In this first part, we aim to examine the effects of BOI on preschoolers' social-emotional competence outcomes. Data Sources: Searches were conducted in Pubmed, Scopus, PsycInfo, ERIC, Web of Science, Portal Regional da BVS and CINAHL. Eligibility Criteria: English, French and Portuguese language articles published between January 2000 and October 2020, that evaluated the effects of BOI implemented in educational contexts on social-emotional competence of preschool children. Only randomized controlled trials (RCT) or quasi-RCT were included. Data Extraction and Synthesis: Two reviewers independently completed data extraction and risk-of-bias assessment. The level of scientific evidence was measured through the Best Evidence Synthesis. Results: Nineteen studies were included. There was strong evidence that BOI do not improve anger/aggression, delay of gratification and altruism. Nevertheless, there was moderate evidence that BOI effectively improve other social-emotional outcomes, such as empathy, social interaction, social independence, general internalizing behaviors, and general externalizing behaviors. The lack of scientific evidence was compromised by the methodological quality of the studies. Conclusion: BOI effectively improve specific social-emotional competences of preschool children. Systematic Review Registration: PROSPERO, identifier CRD42020172248.

There has been a recent increase in body-oriented interventions implemented in educational contexts. Body-oriented interventions are grounded on the body–mind relationship, involving body and movement awareness and expression. In this systematic review of the literature on body-oriented interventions implemented in preschool contexts, we review the scope and quality of the quantitative evidence of each type of body-oriented intervention regarding social-emotional competence. Seven databases were searched for randomized controlled trials (RCTs) and quasi-RCTs. Seven core body-oriented intervention programs were found (e.g., play, relaxation, and psychomotricity). Play programs were the most studied and appear to be the most effective to improve social-emotional competence. Nevertheless, the level of scientific evidence was compromised by the lack of studies with high methodological quality.