sentence: A chubby man is standing outside in a field and throws a yellow medicine ball demonstrating exercising to strengthen athletes for shot put. sentence: The man is then pictured in a gym doing reps with the bar and then begins throwing a ball up against the tree. sentence: Another boy then begins throwing a bag of sand before the previous man comes back and starts using elliptical machines. sentence: Once finished,he returns back to a field and begins pulling the chain across the field and throwing kettle balls.