Final answer:
The most effective way to breathe during strength training is to exhale during the contraction of the muscle you are exercising.
Step-by-step explanation:
The most effective way to breathe during strength training is to exhale during the contraction of the muscle you are exercising. This helps to stabilize the core and allows for better force generation. Inhaling when the muscle you are exercising shortens can interfere with this stabilization and impact your performance.
Learn more about Breathing during strength training