Fusion Series (Hollow) Leg Extension / Leg Curl ndi makina ogwira ntchito pawiri. Zopangidwa ndi shin pad yabwino komanso pad ankle, mutha kusintha mosavuta kuchokera pakukhala. Shin pad, yomwe ili pansi pa bondo, idapangidwa kuti izithandizira kupindika kwa mwendo, potero kuthandiza ogwiritsa ntchito kupeza malo oyenera ophunzitsira masewera olimbitsa thupi osiyanasiyana.