Dr. Pak & Milo Wolf join Coach Kassem to discuss the latest research on training at long muscle lengths and its effect on hypertrophy. They also review some of the unsupported claims currently being made and what the research actually suggests. 00:03:00 - What is the latest research on training at longer muscle lengths? 00:10:28 -  How much of a difference does training at longer muscle lengths make? 00:18:00 - Everybody wants to be a science communicator but nobody wants to do any science! 00:19:46 - In the era where the mechanism have not been uncovered, how do we communicate and apply the evidence to individuals.  00:33:13 - Practical observations from the N1 Lab.  Fatigue, injury, ROI of different exercises. 00:46:45 - Kassem’s best practices.  Real world coaching nuances. 00:52:40 - The unique data from the Pedrosa study ( leg extension partials)  00:57:38 - Adjacent factors and correlations with training at longer muscle lengths and how it impacts fatigue, volume and effort.   01:02:34 - Potential pitfalls of training exclusively with lengthened partials. Should we be concerned about regional hypertrophy?  01:09:24 - Addressing unsubstantiated claims regarding fascicle length.    01:17:58 - Do you also need a lengthened biased resistance challenge and not just a longer muscle length? 01:22:03 - Addressing misleading claims around neuromechanical matching.   01:29:59 - Discussing the research on matching resistance and strength profiles/curves 01:37:00 - Using the lats as an example of problems with oversimplified neuromechanical matching models.   01:41:15 - The impact of neuromechanical matching on muscle specific RIR.  Biased vs Omni or less specific exercises 01:54:45 - Responding to criticisms of optimizing exercise selection and technique.