Although evidence indicates that muscular fitness is foundational for ongoing participation in active play, exercise and sport, current national and international youth physical activity guidelines underplay the critical importance of strength-building activities during this developmental phase of life. In view of troubling trends in muscular fitness in today's youth, specific recommendations to address neuromuscular deficiencies are required. An understanding of the multidimensional development of youth physical inactivity and the importance of muscular fitness are needed to have the most significant impact on youth physical activity at the population level. The mounting evidence of the detrimental effects of physical inactivity on youth warrant a review of existing physical activity recommendations and guidelines. The proposed pediatric activity pyramid recognizes the shared importance of strength, skill, and aerobic activities required for the successful implementation of sustainable youth physical activity interventions.

This review aimed to synthesize the most up-to-date evidence regarding the prevalence of urinary incontinence (UI) among adolescent female athletes. We conducted a systematic review of studies regarding UI in female athletes less than 19 years of age. This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRIMSA). The electronic databases of PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Scopus, and Web of Science (WOS) were searched between October and November 2020. After blinded peer evaluation, a total of 215 studies were identified and nine were included. Risk of bias was assessed using the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist. This review identified a prevalence of UI in adolescent female athletes between 18% to 80% with an average of 48.58%. The most prevalent sports were trampolining followed by rope skipping. The prevalence of UI among adolescent female athletes practicing impact sports was significantly prevalent. There is a need for further research, education, and targeted interventions for adolescent female athletes with UI.

Background: Pelvic floor dysfunction and urinary incontinence are two of the most frequent gynecological problems, and pelvic floor muscle training is recommended as a first‐line treatment, with new approaches such as hypopressive exercises. This study aimed to analyze the efficacy of an 8‐week supervised training program of hypopressive exercises on pelvic floor muscle strength and urinary incontinence symptomatology.Design: Blinded randomized controlled trial.Settings: Women with pelvic floor dysfunction and urinary incontinence symptoms, aged 18–60 years.Participants: A total of 117 participants were randomly allocated to the hypopressive exercises group (n = 62) or a control group that received no intervention (n = 55) and completed the study.Main Outcome Measures: Clinical and sociodemographic data were collected, as well as pelvic floor muscle strength (using the Modified Oxford Scale); the genital prolapse symptoms, colorectal symptoms, and urinary symptoms (with the Pelvic Floor Distress Inventory [PFDI‐20]); the impact of pelvic floor disorders (PFD) on women's lives (with the Pelvic Floor Impact Questionnaire [PFIQ‐7]); and the severity of urinary incontinence symptoms (using the International Consultation on Incontinence Questionnaire [ICIQ]).Results: The results showed an improvement in the hypopressive group in the pelvic floor muscle strength F (1117) = 89.514, p < 0.001, a significantly lower score for the PFIQ7 total score, t (112) = 28.895, p < 0.001 and FPDI20 t (112) = 7.037, p < 0.001 as well as an improvement in ICIQ‐SF values after 8 weeks of intervention in comparison with the control group.Conclusions: After performing an 8‐week of hipopressive exercises intervention, a decrease in pelvic floor disorders associated symptoms can be observed. In addition, pelvic floor muscle contractility is improved and a decrease in severity and symptoms associated with urinary incontinence has been reported.

THE JOURNEY OF PHYSICAL LITERACY CAN BE VIEWED ALONG A CONTINUUM THAT MAY BE INFLUENCED BOTH POSITIVELY AND NEGATIVELY BY LIFE EXPERIENCES AND INTERACTIONS WITH THE PHYSICAL WORLD. THE PROPOSED MODEL HIGHLIGHTS THE INTERRELATED COMPONENTS OF PHYSICAL LITERACY THAT ARE DEPENDENT ON THE QUANTITY AND QUALITY OF INDIVIDUAL MODERATE TO VIGOROUS PHYSICAL ACTIVITY EXPERIENCES.

Temporal trends of youth muscular fitness (i.e., muscular strength, muscular power and local muscular endurance) indicate that contemporary children and adolescents are weaker and slower than previous generations. Consequently, this generation of millennials appear to be just as vulnerable as older adults to the inevitable consequences of muscle disuse and neuromuscular dysfunction. The modern-day construct of pediatric dynapenia describes an identifiable and treatable condition in youth characterized by low levels of muscular strength and power and consequent physical and psychosocial limitations not caused by neurologic or muscular disease. An interaction of modifiable physical and psychosocial factors can influence the development and progression of pediatric dynapenia. Without structured interventions that target strength deficits and build strength reserves in a supporting environment, the divergence in performance between weaker and stronger children may persist into adolescence because weaker youth may be unable to break through a so-called strength barrier. Regular participation in a well-designed youth resistance training program provides an opportunity for youth to enhance their health and fitness while acquiring the physical skills and behaviors that support an active lifestyle. New insights have highlighted the importance of initiating strength-building interventions early in life to optimize performance gains in other important components of physical fitness. Developmentally appropriate resistance training should be integrated into school- and community-based youth fitness programs and strength-building activities should take a more prominent position in public health physical activity recommendations for children and adolescents.