Tone muscles and increase energy with the aerobic program presented in STEP, POWER, AND PUMP WITH DONNA READ. This cardio workout contains a series of routines that steadily become more intense and fast paced. The workout ends with stretching and floorwork primarily designed to work and tone the abdominal muscles. These exercises require dumbbells, a body bar, and should only be attempted by those who are already active. Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.