During {HEAD ~ final displacement} of {TAIL ~ the boot member}, the stirrup is resiliently displaced towards its neutral position and serves to retain the boot member to the ski 
During { HEAD ~ final displacement } of { TAIL ~ the boot member } , the stirrup is resiliently displaced towards its neutral position and serves to retain the boot member to the ski
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH