Elements of the football that today are tested are the deformation of the football when it is kicked or when the ball hits a surface. Two styles of footballs have been tested by the Sports Technology Research Group of Wolfson School of Mechanical and Manufacturing Engineering in Loughborough University; these two models are called the Basic FE model and the Developed FE model of the football. The basic model considered the ball as being a spherical shell with isotropic material properties. The developed model also utilised isotropic material properties but included an additional stiffer stitching seam region.
We found that the feeling of this ball was a bit harder than other soccer balls at this price point. This doesn’t affect the performance of the ball, as the movements were accurate and authentic when struck. The weight does tend to affect the foot and ankle over time, causing a bit of soreness after continuous play. It also features a machine-stitched construction that is accompanied by an internal nylon-wound carcass so the ball has an improved level of durability compared to other soccer balls at this price point.
1. The 2018 FIFA World Cup in Russia stole the attention of soccer fans around the globe this summer and the tournaments official ball, the adidas Telstar 18 World Cup Official Match Soccer Ball, ran away with the title ‘Best Selling Soccer Ball of 2018.’ (We don’t see any ball catching it over the next months). The ball was inspired by the famous Telstar ball that debuted at the 1970 FIFA World Cup in Mexico and released in November 2017. The design drew some criticism from fans but once on the field it lived up to its namesake in looks and performance.
Why do I always have to pump up even expensive balls? Many balls use bladders made out of latex. Natural Latex Rubber bladders offer the softest feel and response, but do not provide the best air retention. Micro pores slowly let air escape. Balls with natural rubber bladders need to be re-inflated more often than balls with butyl bladders. Even after one or two days, the latex bladder will leak enough air so that you will have to inflate the ball back to recommended pressure. Some balls use carbon-latex bladders in which the carbon powder helps to close the micro pores. Soccer balls with carbon latex bladders usually increase air retention to approximately one week. Of course, check the ball for punctures that may cause the air to leak out.