Concurrent and Criterion-Referenced Validity of Trunk Muscular Fitness Tests in School-Aged Children
Low back pain (LBP) has been shown to commence during childhood or early adolescence and some evidence suggests that back pain in youth has a high predictive value for back pain in adulthood. And a frequent cause of decreased physical activity levels in youth and adults is the presence of LBP. Indeed, proposed correlates of LBP in youth include poor physical fitness, decreased physical activity, poor hamstring flexibility, increased sedentary behaviors including TV and computer time, and rising overweight and obesity rates. Therefore, proper assessment of low back function in physical education settings is needed to identify children who may be at risk. The purpose of this study was to determine the concurrent and criterion-referenced validity of field tests of low back and core muscular endurance in school-aged children. The sample consisted of 4 th through 10 th grade students (N = 370) who completed low back and core muscular fitness tests on four separate testing days during