Although these components make up a physical activity profile, research has shown that the total amount of physical activity (minutes of moderateâintensity physical activity, for example) is more important for achieving health benefits than is any one component (frequency, intensity, or duration).
1 Transition: A sentence signaling to the audience the end of the introduction and the beginning of the main part of the speech.  Main points: A detailed presentation of the main points and ideas of the speech; a description of your supporting ideas along with examples and visuals to explain and/or clarify your points.
In the speech introduction it is necessary recognize what you're really selling, the job to be done, and then to presell the audience on your subject. You are in effect, pre-selling the body of your speech. So in the speech introduction, make sure you are pre-selling what the audience wants.