Tuck - A movement that involves contracting the abs back causing the hips to rotate forward to elongate the spine. Heavy Tailbone - A position that is held by engaging the core and bringing the spine to neutral, creating a straight line from the head to the tailbone. Hold - A movement held in its deepest, tightest, lowest position to achieve isometric contraction. May be used with downhold, lifthold, squeezehold, circlehold, etc. Bend Stretch - A tiny quiver in the joint followed immediately by an extension and contraction of the muscle being worked. Pulse - A downward movement from the lowest point, to the Pure Barre tempo of the music. Down-an-inch-Up-an-inch - A one inch range of movement in a slow, controlled motion. Slightly larger than a pulse, smaller than a full range of motion. Pressback - Typically refers to a movement of the knees backward while keeping a heavy tailbone position. The two motions create the opposing forces at work to lean and tone the muscles. Low-impact - A low impact exercise is one that keeps at least one of your feet on the ground at all times. LTB - Shortened version lift, tone, burn.