There are 240 joints in the human body, and Crystal Pite makes full use of them all. In her new work for Kidd Pivot, her Vancouver, B.C.based company, she continues to explore her hybrid roots in ballet and modern dance practices, creating long, juicy phrases that threaten to turn her performers inside out. Lost Action (through Saturday) examines the ephemeral: how a dance disappears just after its performed. But the kinetic impact of Pites hypermobile movement vocabulary leaves the viewer resonating long after the dancers have left the stage. The only thing thatll disappear at the end of this work is Pite herself, who will move to Europe at tours end to take an associate position at Nederlands Dans Theaterso this may be your last chance to see her in a long while. SANDRA KURTZ On the Boards, 100 W. Roy St., 217-9888, www.ontheboards.org. $18. 8 p.m. Thurs., Nov. 20-Sat., Nov. 22.