ʻO ka Fusion Pro Series Back Extension he lōʻihi a maʻalahi ka hoʻohana e hāʻawi i kahi hopena maikaʻi loa no ka hoʻomaʻamaʻa manuahi manuahi.ʻO nā pale hip hiki ke hoʻololi ʻia e kūpono i nā mea hoʻohana o nā ʻano nui like ʻole.ʻO ka paepae wāwae wāwae ʻole me ka hopu ʻana i ka pipi ʻōwili e hāʻawi i kahi kū ʻoi aku ka ʻoluʻolu, a kōkua ka mokulele kihi i ka mea hoʻohana e hoʻoikaika i nā ʻiʻo hope.