Types of studies
Observational studies such as analytical cross-sectional studies, case–control studies, and longitudinal studies (e.g., cohort studies) will be included for information on factors associated with PA participation among children. We will also include experimental study designs such as randomized controlled trials (RCTs). In cases where RCTs are not possible due to the nature of the intervention or due to ethical concerns, we will include the non-randomized trials or the experimental studies not following randomization for the allocation of participants. Additionally, we will also include other non-randomized study designs such as controlled before and after studies (CBAs) and quasi-experimental studies.