Fusion Pro Series Back Extension suna da ƙirar tafiya tare da masu daidaitawa na baya, kyale mai motsa jiki ya zaɓi kewayon motsi cikin yardar kaina.A lokaci guda, Fusion Pro Series yana haɓaka madaidaicin madaidaicin hannun motsi don haɗa shi tare da babban kayan aikin, haɓaka kwanciyar hankali da dorewa.