K.C. Alfred/GettyAustralian sport has a participation problem, especially when it comes to girls and women.In fact, Australian girls and women are dropping out of organised sports at concerning rates. Read more: As Brisbane 2032 gets closer, Australian girls are quitting organised sports. What can be done? There are myriad reasons why this is happening. One barrier that gets little coverage is sports bras.We recently studied how decision-makers in schools and sports organisations understand breast-related barriers to participation and whether they recognised sports bras as part of the solution.Why are sports bras so important?Sports bras are essential for girls and women because breasts move a lot during activities such as running, jumping or quick changes in direction. This movement can cause pain, chafing and embarrassment, which may discourage participation and hurt performance.A high-support, properly fitted sports bra can alleviate or resolve these issues and allow girls and women to exercise comfortably.However, research shows up to 88% of girls wear sports bras that do not fit properly and only about a third wear a sports bra during PE or school sports.Not including sports bras in school uniforms or sports kits, and not teaching about bra fit and breast health, are gaps that need addressing. The good news is these gaps can be addressed through practical, achievable changes to assist the health, comfort and performance of girls and women playing sport.We identified several problemsOur team surveyed 225 people – including coaches, teachers, administrators and program coordinators – who decide on sports kit items in 153 sporting organisations and 72 schools across Australia.We identified several key issues:many girls and women do not understand the benefits of supportive sports brascost makes it difficult for some to access sports bras, especially in schools and community sportssports bras are often seen as underwear instead of performance equipment.One respondent told us: In the same way that a mouth guard protects teeth, breasts are high-contact areas in our sport that require protection and support.Most respondents said breast-related issues negatively affect participation – a majority believed about 40% of girls and women in their organisations faced breast-related problems that limited participation, led to dropping out and impacted performance.However, most understood the benefits of sports bras: about 95% believed sports bras help prevent breast pain during exercise, and more than 90% said they reduced embarrassment from too much breast movement.About 92% of decision-makers thought girls and women would benefit from learning about sports bra design, fit and support. While two-thirds felt their organisation should provide this education, less than 1% actually offered sports bra education. Only 2% formally included sports bras in school or sports kits.We also suggest some solutionsWe developed a guide that presents solutions to assist sports and schools in dealing with this problem. It includes facts, free evidence-based resources on sports bras for use in promotional efforts, and case studies on organisations that are educating and supporting girls and women to access sports bras.Key solutions included schools and sports accepting the responsibility to educate girls and women on the importance of wearing supportive, well-fitted sports bras and recognising sports bras as an essential item in sports kits.Two case studies also identified recent success stories:At Gilgandra High School in New South Wales, teachers noticed few girls were taking part in sports and found a lack of access to supportive sports bras was a problem. The school used NSW government equity funding to give students professionally fitted sports bras for free.This led to a 35% increase in girls taking part in the school’s athletics carnival. It also boosted their confidence, comfort and willingness to talk about breast health.Also, the Queensland Academy of Sport added breast health education and sports bra fittings to their athlete support services. A physiotherapist met with athletes one-on-one to explain how sports bra design and fit can improve performance and comfort and help prevent breast injuries.The academy found its athletes were much more likely to use breast health resources after getting personal advice from trusted health professionals. These sessions also made it easier to talk about breast health and lowered barriers to getting help.Practical tips for sports and schoolsThere are several things sporting clubs and schools can do to help. Recognise sports bras as essential equipment for girls and women because breast support is important for keeping them involved in sport.Add breast health and sports bra education, along with access to evidence-based resources, to physical education programs in high schools and women’s sport training sessions.Offer opportunities for girls and women to learn about sports bra design and proper fit in supportive settings.Assist with funding or identify where funding could be provided to help make sports bras more affordable.If we want to boost participation and reduce dropout rates among girls and women, making sure they have access to proper breast support could be one of the easiest and most effective things we do.Clare Hanlon receives funding from Susan Alberti AC, who partially funded this project.Deirdre McGhee and Dr Elliott Flowers do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.