Final answer:
Forced breathing, also known as hyperpnea, benefits from the use of the "breathing technique." It occurs during exercise or actions like singing and requires muscle contractions for both inspiration and expiration.
Step-by-step explanation:
The projection that benefits from the use of the "breathing technique" is forced breathing, also known as hyperpnea. Forced breathing is a mode of breathing that occurs during exercise or actions that require active manipulation of breathing, such as singing. During forced breathing, both inspiration and expiration occur due to muscle contractions, including the contraction of the diaphragm, intercostal muscles, and other accessory muscles.