Constant weight (CWT) is a

freediving Freediving, free-diving, free diving, breath-hold diving, or skin diving is a form of underwater diving that relies on breath-holding until resurfacing rather than the use of breathing apparatus such as scuba gear. Besides the limits of breath- ...

discipline recognised by

AIDA ''Aida'' (or ''Aïda'', ) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Antonio Ghislanzoni. Set in the Old Kingdom of Egypt, it was commissioned by Cairo's Khedivial Opera House and had its première there on 24 Decemb ...

, the International Association for the Development of Apnea, in which the freediver descends and ascends using their monofin and/or with the use of their arms without pulling on the rope or changing his ballast; only a single hold of the rope to stop the descent and start the ascent is allowed. Constant weight is one of the eight disciplines considered for international competition, the others being

constant weight bi-fins Constant weight bi-fins, denoted by the acronym CWTB in competition notation, is a competitive freediving discipline wherein the freediver wears a pair of bi-fins (or stereo, as opposed to a monofin) to descend along the line with or without the ...

(CWTB), constant weight without fins (CNF),

static apnea Static apnea (STA) is a discipline in which a person holds their breath ( apnea) underwater for as long as possible, and need not swim any distance. Static apnea is defined by the International Association for Development of Apnea (AIDA Interna ...

(STA),

dynamic apnea without fins (DNF), Dynamic apnea is a discipline of competitive freediving, also known as competitive apnea. Dynamic apnea covers two of the eight competitive freediving categories recognised by the AIDA International (International Association for Development of Ap ...

dynamic with fins Dynamic apnea is a discipline of competitive freediving, also known as competitive apnea. Dynamic apnea covers two of the eight competitive freediving categories recognised by the AIDA International (International Association for Development of Ap ...

(DYN), free immersion (FIM), and

dynamic apnea bi-fins (DYNB) Dynamics (from Greek δυναμικός ''dynamikos'' "powerful", from δύναμις ''dynamis'' "power") or dynamic may refer to: Physics and engineering * Dynamics (mechanics) ** Aerodynamics, the study of the motion of air ** Analytical dynam ...

Current World Record Holders

* men: Alexey Molchanov (

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

), 131 metres in 4 minutes 33 seconds. (2021-07-17) * women:

Alenka Artnik Alenka is a popular Slovene female given name. It ranks among the top 30 most common female names in Slovenia. Another version of the same name is Lenka. In Slavic languages, both versions are often treated as diminutive names of Alena and Lena, r ...

(

Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...

), 122 metres in 3 minutes 34 seconds. (2021-07-23)

References

{{Underwater diving *