Joel Jamieson has spent over two decades building the science and language around energy systems, heart rate variability, and recovery, working with elite fighters, teams across the NFL, NBA, MLS, and NCAA, and the tactical community. He wrote Ultimate MMA Conditioning, a book coaches still pull principles from today, and built BioForce HRV and then Morpheus—turning recovery, day-to-day variance, and heart rate zones into something measurable. He founded 8WeeksOut to clear up the misinformation around energy systems, and has become one of the names most responsible for conditioning being taken seriously as its own discipline, rather than an afterthought bolted onto a strength program. His focus sits on a tension every coach lives with: the balance between strength and conditioning.

