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Glossary / Training
Aerobic Fitness
The ability to sustain exercise using oxygen-dependent energy systems.
Short Definition
The ability to sustain exercise using oxygen-dependent energy systems.
Plain-English Explanation
Aerobic Fitness means the ability to sustain exercise using oxygen-dependent energy systems. In practice, it helps name training choices and the claims made about them.
No Lies Lifting uses it as a plain-language reference point, not a magic rule by itself. Formal exercise-science term.