Physical inactivity commonly occurs throughout one’s life, particularly during adolescence and young adulthood. Multiple factors can negatively influence participation in physical activity, but there has been no review examining the barriers to physical activity among high school and university students. Therefore, the aim of this systematic review was to summarize evidence of barriers to the practice of physical activity among high school and university students. The literature search was conducted without time limits using five databases, including CINAHL, Cochrane Library, Embase, PubMed, and Scopus. In total, 59 studies (37 with high school students [n = 22,908] and 22 with university students [n = 15,411]) were included. The main barriers identified in high school and university students were lack of time, lack of motivation, and lack of accessible places. These findings may be useful in designing and implementing evidence-informed interventions and programs for physical activity promotion in students.

Introduction: Musculoskeletal disorders play an important role in athletes’ health and success in sports; they are the main contributors to disability, and back pain is a common problem in athletes. Back pain and spinal injuries occur in players because of the repetitive and unilateral body overload during sports practice. Reviews focused on musculoskeletal disorders in basketball players are scarce in the literature. We describe a systematic review protocol for assessing the prevalence of musculoskeletal disorders and the associated factors in basketball players. Methods and analysis: The protocol will be based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) items and articles will be searches in the databases EMBASE, PubMed, and Scopus. Studies will be included if they are written in English and without restriction regarding the search period. All research stages will be performed by two independent reviewers and will be conducted using Rayyan. Potential disagreements will be analyzed by a third reviewer. The inter-rater reliability will be determined through the Cohen's kappa coefficient. Evidence quality will be ascertained by using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) system, while the Downs and Black checklist will be used for assessing the risk of bias. A descriptive summary and presentation of the characteristics and findings of all included studies will be provided in a table. Regarding these data, if there are sufficient high-quality studies, we plan to perform a meta-analysis. Discussion: The obtained results might possibly relate back pain to postural changes in this population. In addition, the data will be compared based on gender and different age groups. It is expected that the results can support the implementation of programs and actions for prevention, ultimately aiming at improving health, quality of life, and sports performance. Registration: PROSPERO CRD42020201653 on August, 31, 2020.

Back pain is a public health problem that affects adolescents and adults worldwide. However, studies on back pain present inconsistent findings in part due to the use of different instruments, especially for athletes. Therefore, the objective of this systematic review protocol was to map the existing evidence on such tools. The systematic review will be conducted according to PRISMA guidelines. Five electronic databases, Embase, MEDLINE, SPORTDiscus, CINAHL, and Scopus will be searched. This review includes studies that investigated prevalence, incidence, and other variables. Titles and abstracts will be selected. Two independent reviewers will read the articles carefully and discrepancies, if any, will be dealt with by a third reviewer. All steps will be completed with Rayyan for systematic reviews and the methodological quality will be analyzed with a COSMIN checklist. Discussion: This systematic review will gather evidence on tools that assess back pain in athletes. The findings may indicate the most appropriate tools for assessing back pain. They will contribute to better reliability, safe measurements, and help to standardize a comparison tool between different studies. They will also assist in the development of specific tools for athletes. Registration: This review was submitted and registered under CRD42020201299 in PROSPERO.