**2. Methods Section**

As part of this narrative review, a search was conducted using seven databases, including PubMed, MEDLINE, SPORTDiscus, CINAHL, Scopus, Web of Science, and EMBASE, without any date restriction for articles pertaining to motor skills interventions in typically developing children and adolescents from all socioeconomic backgrounds.

The main search group terms were: "fundamental motor skills" OR "FMS" OR "motor skill" OR "movement skill" OR "motor development" OR "motor performance" OR "balance" OR "stability" OR "motor ability" AND "children" OR "adolescent" OR "youth", OR "preschooler" AND "intervention" OR "program" OR "study" OR "trial". To exclude studies that specifically examined youth participants with disorders/disabilities, the following terms were used: AND NOT "disability" OR "disorder" OR "autism" OR "impairment" OR "cerebral palsy".

The criteria used to include a study in this narrative were as follows:


Section 3 below provides information as part of this narrative review on the included FITT components of the motor skill intervention studies that have been reviewed.
