A commonly used variable to describe the external load is Player Load (PL), which is a term that has been proposed by Catapult Sports, a company that provides sports technology. Studies on sports training have used inertial sensors to measure the external load, which is the physical demand that is experienced by players during training or competition ( Castillo et al., 2017) (e.g., distance covered, mean velocity, and accelerations Schelling and Torres-Ronda, 2016 Weaving et al., 2017). We concluded that a deeper discussion of Player Load as a descriptor of external load is warranted in the sports sciences literature. Therefore, coaches and sports scientists should take this information into account when they use Player Load to prescribe and monitor external loads. It seems that Player Load is related to the magnitude of changes in acceleration, but not the magnitude of acceleration itself. Moreover, the use of arbitrary units and different practical meanings in the literature has associated Player Load with many physical quantities, thereby resulting in difficulties in determining what Player Load measures within the context of sports. Accordingly, this paper presents a brief discussion on the meanings that have been assigned to Player Load, its limitations, and the lack of clear and complete information about Player Load calculation methods. We reviewed existing literature in order to understand Player Load better we found many inconsistencies in PL calculation methods and in the meanings attached to it. Our motivation to write this paper came from the difficulties that we encountered in the calculation and interpretation of Player Load using our own data, since we did not use the Catapult Sports equipment, which is a merchandise of the company that proposed this variable. Sums of the ranks from each of the challenges will determine the rank for the Overall Score.We present a critical reflection on the mechanical variable Player Load, which is based on acceleration data and commonly used in sports.
Ranks will go only to 12th place, meaning 12th place and beyond will all be ranked at 12th place. Teams will be ranked based on the number of points they received. *Paint and decorations cannot interfere with the safety of your catapult. You may choose to decorate the catapult in anyway (painting, drawing, adding decorative items, etc.) in order to make it look aesthetically pleasing. This challenge is about decorating your catapult. No box will be counted until the end of 5 minutes. (for example, a box must move 6 inches forward or backward from its original position. Catapults must meet all required specifications to participate in the challenges outlined below.Ĭreativity and Originality of Design (20 points)ġ point: shooting the ball beyond the basketball hoop before hitting the groundĨ points: each shot made through the hoopĢ additional points if the team can “call glass” before you shoot and bank it in the hoop off the backboard (for a total of 10 points).Ĥ points will be DEDUCTED if you “call glass” and make it through the hoop without hitting the glass (for a total of 4 points).Ġ points will be awarded if you “call glass” and miss the backboard and the hoop.ġ point awarded for each Humpty Dumpty knocked off the wall.ġ point is awarded for each box that has moved more than half its thickness.
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