Constriction. Either partner can use/employ Constriction with their arms (often with the forearms), either intentionally or unintentionally, as a way to stabilize, or to control, usually to control, their partner’s movements. Typically Constriction is employed to a.) Keep the partnership together. The more you squeeze your partner, the more they stay with you. And 2.) To minimize unintentional movements. Usually this is done with Force, and Tension, by a Lead. However, a Follower can also engage in Constriction as well. The concerted Tango Topics opinion on this idea is that it is not desirable to dance this way.