Stock photography, photos: hyperventilates into a paper bag Stock photos of male track participant hyperventilates into a paper bag Photograph: © Dennis MacDonald Click for a larger image and more information Keywords associated with this stock photo: Sports, Athlete, Team, Teamwork, Solidarity, Competition, Compete, Competing, Player, Determination, Determined, Togetherness, Uniform, Recreation, Exercise, Exercising, Work Out, Healthy, Physical, Fitness, Player, Effort