A man is standing a room with a bunch of work out items and then is in the push up position on the floor doing leg thrusts.
A beat is playing and a man is showing how to do a exercise,
A very fit man is preparing to demonstrate some cardio exercises.
Graphics play before a man is talking and doing some exercises.
A young man, standing on an exercise mat leans down and demonstrates a cardio exercise, while music is playing.
A measurement tape appears and then a man does some gymnastic exercise
A man stands on a mat in the gym then bends and starts demonstrating a cardio exercise
A man is in his living room, there is a bunch of exercise equipment and he is exercising on  a mat.
A man is demonstrating the mountain climbing exercise on a fitness show.
An athletic trainer is showing his audience a new cardiac exercise.