sentence: There's a fitness expert dressed in a black shirt and a red hat demonstrating and talking about fitness training tips in a gym. sentence:  He is standing with several exercise balls behind him as he demonstrates how to use the jump rope. sentence:  He begins doing the jump rope  by jumping several times as he shows the correct technique of doing it. sentence:  Then he goes on to show some more jump ropes techniques while doing the jump rope himself. sentence:  After he stops, he continues talking and explaining the workout method.