▁the ▁previous ▁phases . ▁ ▁Four th ▁phase ▁During ▁the ▁fourth ▁phase ▁of ▁the ▁pull , ▁or ▁" final ▁acceleration " ▁the ▁lif ter ▁performs ▁the ▁final ▁acceleration ▁on ▁the ▁bar . ▁ ▁This ▁is ▁executed ▁by ▁explos ively ▁extending ▁the ▁hip , ▁kne e , ▁and ▁an k les ▁( or ▁plant ar - flex ing ). This ▁is ▁followed ▁by ▁an ▁up ward ▁elev ation ▁of ▁the ▁shoulders ▁( the ▁" sh rug "), ▁and ▁simultaneously ▁lif ting ▁the ▁he els ▁or ▁the ▁whole ▁foot ▁of ▁the ▁ground . ▁The ▁lif ters ▁tor so ▁will ▁usually ▁lean ▁slightly ▁backwards ▁during ▁this ▁phase , ▁and ▁the ▁bar ▁is ▁acceler ated ▁up ward ▁with ▁a ▁slightly ▁ar ced ▁traject ory . ▁ ▁Fif th ▁phase ▁The ▁fifth ▁phase ▁of ▁the ▁pull , ▁or ▁" un supported ▁squ at ▁phase ", ▁occurs ▁when ▁the ▁lif ter ▁has ▁fully ▁extended ▁his ▁kne es , ▁h ips , ▁and ▁an k le . ▁The ▁lif ter ▁b ends ▁his ▁arms ▁at ▁the ▁el bow , ▁pulling ▁himself ▁under ▁the ▁bar . ▁Sim ult ane ously ▁he ▁moves ▁his ▁feet ▁slightly ▁apart ▁into ▁the ▁squ at ▁position ▁and ▁begins ▁to ▁move ▁down ward ▁into ▁the ▁squ at ▁position ▁ ▁Six th ▁phase ▁The ▁sixth ▁phase , ▁or ▁supported ▁squ at ▁under , ▁occurs ▁when ▁the ▁lif ters ▁feet ▁have ▁land ed ▁flat fo oted ▁on ▁the ▁platform ▁and ▁the ▁lif ter ▁pull s ▁themselves ▁into ▁a ▁squ at ▁position . ▁ ▁The ▁lif ter ▁then ▁receives ▁the