O le Discovery-R Series Rear Kick e toe fa'atusa le gaioiga kiki i tua i uta mamafa fa'ainisinia, o se filifiliga sili lea mo le toleniina o glutes, hamstrings, ma quads. O vae lapopoa e mafai ai e tagata faʻaoga ona toleni i le tele o tulaga, ae o pads ergonomic e maua ai le tufatufaina atu o faʻamaʻi talafeagai aʻo faʻamautu le tino.