Cardiorespiratory Fitness in Children and Youth: A Call for Surveillance, But Now How Do We Do It?

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Excerpt

The release of the first Physical Activity (PA) Guidelines for Americans in 2008 (1) and subsequent release of national statistics on objectively measured PA (2), heightened awareness of the need to increase PA levels across all demographic groups. Unfortunately, much of the American population is still woefully uninformed about how physically inactive our children and youth are. Demonstrating how critical PA and fitness are to the health of our population will remain an unmet challenge unless routine surveillance measures are adopted and implemented. In this issue of Exercise and Sport Sciences Reviews, Lang et al. (3) detail the utility of the 20-m shuttle run test (and more recently, the Progressive Aerobic Cardiovascular Endurance Run (PACER) test), which has been used to monitor cardiorespiratory fitness (CRF) since the 1980s. This is a valid, reliable, and feasible measure of CRF and untapped opportunity for national surveillance of pediatric population health. Importantly, CRF is associated with PA engagement, yet has independent and often stronger associations with health outcomes.
Schools represent a logical and promising setting for conducting CRF measures but buy-in is needed, where competing academic demands diminish efforts in promoting PA, especially among resource-strapped schools. Routine assessment in schools is not mandated nationally, although some states are conducting annual assessments as mounting evidence surrounding PA and academic achievement has begun to capture their attention. As a community of PA and public health researchers and practitioners, we must continue to underscore the value of PA and CRF to teachers, administrators, and policy makers.
To promote the success of CRF assessment in schools, local efforts are needed to train and empower schools to implement CRF assessment, while at the same time disentangling the facilitators of and barriers to this process. In fact, supportive PA environments in schools often are reflected in the commitment to providing time and resources to conduct fitness testing (4). In our own research, we implemented PACER testing in more than 1000 children from low-income schools and were successful in training physical education (PE) teachers to integrate PACER into their curriculum (5). Emphasizing to schools that assessments can be feasibly implemented in a group setting where children can be encouraged to strive for their personal best is a critical step. Still, training PE teachers to routinely conduct fitness tests, record data, and ensure that students understand the test while still making it fun, will take great care.
The capacity for local progress to inform national efforts cannot be underestimated. To propel a national movement toward the systematic measurement of CRF, garnering support from multiple stakeholders including those involved with key national issues is essential. For example, if hot-button issues such as military preparedness and national security highlight the dire need for increased fitness of recruits, then the impetus for a national policy to start promoting CRF testing during the earlier school years might be set in motion. Getting there, however, still requires a greater national conversation with an eye toward developing a feasible action plan for mobilizing CRF assessments that harness insight from those who have been successful with implementation. If a national policy were mandated for routine CRF assessment among children and youth, local resources and time need to be thoughtfully allocated. Generating momentum for the routine assessment of CRF will be no easy feat — data are needed to fuel policy, but policy also is needed to promote CRF surveillance.
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