Hop tests are frequently used to determine return to sports (RTS) after anterior cruciate ligament reconstruction (ACLR). Given that bilateral deficits are present after ACLR, this may result in a falsely high limb symmetry index (LSI), since LSI is calculated as a ratio between the values of the limbs.HypothesisAthletes …

Introduction In elementary school, children have to learn fundamental motor skills to ensure a lifetime participation in sports. An essential part of this learning process is organized in physical education lessons and other sport activities during or after school time. The quality and quantity of these …