Constant weight (CWT) is afreediving discipline recognised byAIDA, the International Association for the Development of Apnea, in which the freediver descends and ascends using theirmonofin and/or with the use of their arms without pulling on the rope or changing their ballast; only a single hold of the rope to stop the descent and start the ascent is allowed.[1] Constant weight is one of the eight disciplines considered for international competition, the others beingconstant weight bi-fins (CWTB),constant weight without fins (CNF),static apnea (STA),dynamic apnea without fins (DNF),dynamic with fins (DYN),free immersion (FIM), anddynamic apnea bi-fins (DYNB).[2][3][4]