Does squatting past 90 degrees really wreck your knees? We break down Joel Seedman’s 90-degree rule and chaos training against the peer-reviewed research on range of motion, instability, and joint health. Learn how fitness pseudoscience gets sold to coaches and clients — and the evidence-based principles that actually build strong, resilient athletes.
Discover how the max effort method builds maximum strength through science-backed training at 90% or higher of your one rep max, featuring proven exercise rotation strategies from the conjugate system and Westside Barbell. Learn the complete guide to implementing heavy singles, managing CNS fatigue, and programming max effort work safely for powerlifting, athletic performance, and general strength training. This comprehensive resource covers neurological adaptations, periodization models, and twelve weeks of ready-to-use programming for breaking through strength plateaus.