Dynamic, energetic, group fitness class, gymnasium setting, high energy workout session, mixed gender participants, sweaty bodies, determination, camaraderie, motivation, weights, machines, exercises, pumping iron, instructor's guidance, yell, cheers. Ultra HD, HDR video, slow motion, sports glass, 8K. Athletes: Simone Bolelli AND Serena Williams by: Lee Madgwick, Antonello da Messina
(Gym:1.6), Group workout session. 