Which of the following is NOT considered a correct bodily position during exercise?

The correct answer identifies "knees locked out" as an incorrect bodily position during exercise. Locking out the knees can lead to increased stress on the joints and may compromise proper alignment, which is crucial for maintaining stability and preventing injury. During exercises, it is generally recommended to maintain a slight bend in the knees to ensure they are engaged and to provide support throughout the movement. This slight bend allows for better shock absorption and reduces the risk of hyperextension or undue strain on the ligaments and tendons surrounding the knee joint.

In contrast, maintaining a straight back, keeping feet shoulder-width apart, and engaging the core are all fundamental principles of proper exercise form. A straight back promotes a neutral spine, which is critical for overall posture and preventing strain on the lower back. Feet positioned shoulder-width apart help establish a stable base for balance and movement. Engaging the core activates essential stabilizing muscles, providing support to the spine and improving overall performance during physical activity. These positions and techniques contribute to effective, safe exercise practices, especially for seniors who may have specific considerations regarding joint health and stability.