An exercising assisting and support assembly includes a body having a bottom surface, a top surface, a first lateral side, a second lateral side, a first end and a second end. The body is elongated from the first end to the second end and a cross-section of the body has a trapezoidal shape. The body has a length from the first end to the second end is between 24.0 inches and 48.0 inches and a height from the bottom surface to the top surface being at least 12.0 inches and less than 16.0 inches. The bottom surface has a width from the first lateral side to the second lateral side between 16.0 inches and 20.0 inches and the top surface has a width from the first lateral side to the second lateral side at least equal to 4.0 inches and no greater than 10.0 inches.