Zone 2 vs Threshold Training: Which and When | CFBC from CrossFit BC. Zone 2 vs threshold training explained: what each does, how they feel, how to balance easy aerobic work with lactate threshold sessions, and find your zones.
This is a long-form CrossFit BC reference piece. We cite the research we lean on, show how we apply it with members in the gym, and keep the practical takeaways at the top so you can act on them the same week.