In this short instructional video, the speaker demonstrates a common mistake made when an animal performs the leg‑extension (cadeira extensora) exercise: the hips lift off the bench, creating momentum that assists the leg movement and reduces the effectiveness of the workout. The speaker explains why the hips should remain completely stationary on the bench, with only the knee joint moving up and down. He provides a step‑by‑step correction—keep the hips flat against the bench, lock them in place, and focus the motion on the knee. Throughout the demonstration he emphasizes safety, advising a calm, slow approach to avoid startling or stressing the animal. The video ends with a visual confirmation of the proper form and a reminder to maintain the animal’s comfort.
