The video shows a man in a living room, standing on a yoga mat. He is wearing a black shirt and blue shorts. The room has a wooden cabinet, a television, and a clock on the wall. The man is demonstrating how to do a sit-up exercise. He starts by lying on his back, then lifts his upper body off the mat, and finally brings his knees to his chest. The video is shot in a vertical format, and the man is speaking to the camera, providing instructions on how to perform the exercise.