The objective of this study is to determine the impact of three alternative infills of various particle size on athlete performance and safety in a third generation (3G) synthetic fields. A complete randomized design composed of three different infill materials (thermoplastic elastomer. coconut and cork mixture. and recycled Nike shoes (Nano)) with all infills having the same infill d... https://www.fitnessgravesyardes.shop/product-category/step-up-pulley/