[en] The observation of multi-band structure in nucleus ¹⁸⁵Pt reported recently, once again raises the open question about whether the alignment of proton h_9/2 pair or neutron i_13/2 pair should be responsible to the backbending in five bands. Blocking experiments prefer the proton h_9/2 pair while Total Rothian Surface calculation supports neutron i_13/2 pair. Based on the analysis of assumptions implied in both approaches, a new theoretical calculation which includes the dynamic effect of band crossing is presented. Such a calculation indicates that the alignment of proton h_9/2 pari should be the main cause for the observed backbendings