Starting-blocks 3D model

In the past, sprints started standing up. Australian sprinter Sherrier used to fret about his stagnant sprint performance. He observed that although the kangaroo dragged a big bag and had a big belly, it ran more than 70 kilometers per hour and jumped 12 meters a step. Scherrier found that kangaroos always bend down, lower their bellies to the ground, and then leap to their feet before running and jumping. Scherrier imitated the kangaroo and invented the squatting start, thus he created excellent results in the 1896 Olympics. Many athletes followed suit. For example, another athlete Booker dug a small shallow pit where he squatted on the starting line, put one foot into the shallow pit, and when he started, he rushed out with an arrow, achieving a 100-meter sprint of less than 10 seconds. Later, all runners used the squat start, so the track and field field appeared the run-up product