What best describes positional asphyxia?

Positional asphyxia refers to a situation where an individual is unable to breathe properly due to their body position. This condition typically arises when the positioning of the body restricts airflow, making it difficult for an individual to receive adequate oxygen. Common scenarios include situations where a person's chest is compressed, such that they cannot fully expand their lungs, or when their airway becomes obstructed due to poor positioning.

Understanding positional asphyxia is crucial, especially for individuals involved in restraint or physical control situations, as certain positions can significantly increase the risk of breathing difficulties. Recognizing the signs and ensuring proper positioning can prevent this dangerous condition, which underscores the importance of training in safety practices for handling individuals appropriately.

The other options do not accurately capture the essence of positional asphyxia. Techniques to improve airflow, methods for safe restraint, and emergency first aid measures serve different purposes and do not explain the problem of impaired breathing associated with body positioning.