Kantaroolaha ugu fudud waa furaha ku xidha mootada iyo korontada, sida qalabyada yar yar ee guriga ama qalabka korontada. Furaha waxa lagu shaqayn karaa gacanta ama si toos ah ayaa loo bilaabi karaa ama la joojin karaa iyada oo la isticmaalayo relays ama xidhiidhiyeyaasha ku xidhan dareemayaasha. Dabooluhu wuxuu yeelan karaa boosas kala duwan oo la dooran karo, taasoo u oggolaanaysa matoorku inuu ku xidho qalabka korantada siyaabo kala duwan, sida hoos u dhigista tamarta bilawga ah, dib u noqoshada shaqada, ama xulashada xawaaraha kala duwan. Koontaroolayaasha yaryar ayaa laga yaabaa inay meesha ka saaraan rarka xad dhaafka ah iyo aaladaha ilaalinta xad dhaafka ah, iyaga oo ku tiirsan wareegga ilaalinta xad dhaafka ah ee dibadda si ay uga hortagaan hadda xad dhaafka ah. Qaar ka mid ah matoorada yaryar ayaa - ku dhisay ilaalinta culeyska xad dhaafka ah taasoo si toos ah u fureysa wareegga si looga hortago culeyska xad dhaafka ah. Matoorada waaweyni waxay yeelan doonaan relays-ka-dhaafis ah ama heerkul -dareemida gudbinta, iyo sidoo kale fiyuusyada ama furayaasha wareegyada lagu daro kontaroolaha si ay uga hortagaan socodka xad dhaafka ah. Xakamaynta mootada tooska ah waxa kale oo ay ku jiri karaan furayaasha xaddidan ama aaladaha kale ee lagu ilaaliyo mishiinka.
Koontaroolayaasha mootada kakan ayaa si sax ah u xakameyn kara xawaaraha iyo qulqulka mootada waxayna sidoo kale noqon karaan qayb ka mid ah -nidaamka xakamaynta wareegga ee lagu xakameynayo booska makaanikada.
