In the video, a woman is seen sitting on a bench in a gym. She is wearing a gray tank top and black leggings, and has blonde hair. The woman is speaking to the camera, and then she demonstrates how to do a proper sit-up. She starts by lying back on the bench and then brings her upper body up to a sitting position. She repeats this motion several times, showing the correct form for doing a sit-up. The gym is well-lit, and there are other exercise equipment visible in the background.