Table 1.

Inclusion and exclusion criteria.

Item	Inclusion Criteria	Exclusion Criteria
Population	Untrained adults (>18 years old) from any sex, with or without a noncommunicable disease. Adults were not exposed to specific pharmacological or diet-oriented plans	Trained adults, athletes, youth (above 18 years old); participants were not exposed to specific pharmacological or diet-oriented plans
Intervention	SSG-based programs restricted to a minimum of 4 weeks (duration) and no restricted to frequency (number of sessions per week)	Other types of exercises; other types of SSGs; combined interventions (SSG and other types of exercise or intervention); or regular full-sized game (11 vs. 11); interventions with less than 4 weeks
Comparator	Passive or active control groups	Passive control with evidence of participation in structured exercise
Outcome	Pre-post intervention values (mean and standard deviation) of bone mineral density (BMD) measured in any body part	Other outcomes no, including bone mineral density (e.g., bone turnover markers); no information pre-post intervention (e.g., follow-up excluded); pre-post data the same in more than one article
Study Design	Randomized controlled trials	Nonrandomized studies
Additional criteria	Only original and full-text studies written in English	Written in another language than English; other article types than original (e.g., reviews, letters to editors, trial registrations, proposals for protocols, editorials, book chapters and conference abstracts)