In a gym with a red lighting scheme, a person in a black shirt and light-gray pants performs back extension exercises on a black mat, supported by a black roller placed beneath their pelvis. They are positioned on their hands and knees, arched back, pushing up and down. In the background, another individual stands shirtless wearing gray pants and yellow sneakers, watching the exercise, with one hand in their pocket. A weight training machine sits behind them. A third person wearing a white shirt and black pants, walks through the scene, passing between the camera and the exerciser. The gym floor is a textured metal surface.