Myotubes at 36 h APF are under mechanical tension Single plane spinning disc confocal movie of two myotubes labelled by Mef2-GAL4, UAS-GFP-Gma at 36 h. The lower one is cut with a UV laser. Note the recoil of the wounded ends and also the movement of the distal myotube ends. Time is indicated in seconds and starts at the cut. Movie plays with 5 frames per second.