Episode 52 Unraveling the Science of Muscle Growth with Michael Roberts PhD

Sports Science Dudes

Meet Dr. Michael Roberts, a trailblazer in the world of muscle growth research. This episode promises to be an intriguing journey through the world of scientific research.
Timeline

2:35 – The evolution of how Mike Roberts’ lab did the squat vs. hip thrust study.

5:17 – There is a crazy amount of work involved in a training study.

6:15 – It took about 2 years to pull it off.

8:17 – Animal models – applies to humans? Yes or no?

9:10 – Animal work in nutrition – should we dismiss it?

9:40 – Mike’s take on the value of animal models – specifically skeletal muscle

10:52 – Mike likes the animal models of skeletal muscle hypertrophy

15:05 – CLA works in rodents; doesn’t do shit in humans

16:02 – Do humans undergo skeletal muscle fiber hyperplasia vis a vis weight training?

24:05 – Primary drivers of skeletal muscle hypertrophy in humans

28:45 – Sarcoplasmic hypertrophy – real or fake?

34:34 – The concept of a critical cell size

35:29 – Satellite cell proliferation fuse with existing fibers – so fiber number should go down?

38:00 – Direct fiber counts with splitting – see this paper - https://journals.lww.com/acsm-msse/Abstract/1994/08000/Muscle_fiber_splitting_in_stretch_enlarged_avian.7.aspx

39:52 - Fiber number differs in the same muscle; that is, proximal, middle, and distal.

40:18 – Biopsy data doesn’t reconcile with whole-muscle measures of muscle growth.

44:44 – Do you need to damage muscle fibers or be sore to produce muscle fiber hypertrophy?

48:49 – Responders vs. Non-Responders vis a vis hypertrophy

Dr. Michael Roberts

PhD in Exercise Physiology, 2010, University of Oklahoma

M.S. Ed in Exercise Physiology, 2006, Baylor University

B.S. in Biology, 2003, Baylor University

About the Show

We cover all things related to sports science, nutrition, and performance. The Sports Science Dudes represent the opinions of the hosts and guests and are not the official opinions of the International Society of Sports Nutrition (ISSN), the Society for Sports Neuroscience, or Nova Southeastern University. The advice provided on this show should not be construed as medical advice and is purely an educational forum.

Hosted by Jose Antonio PhD

Dr. Antonio is the co-founder and CEO of the International Society of Sports Nutrition and the co-founder of the Society for Sports Neuroscience, www.issn.net. Dr. Antonio has over 120 peer-reviewed publications and 16 books. He is a Professor at Nova Southeastern University, Davie, Florida in the Department of Health and Human Performance.

Twitter: @JoseAntonioPhD

Instagram: the_issn and supphd

Co-host Anthony Ricci EdD

Dr Ricci is an expert on Fight Sports and is currently an Assistant Professor at Nova Southeastern University in Davie Florida in the Department of Health and Human Performance.

Instagram: sportpsy_sci_doc and fightshape_ricci

章节

1. Episode 52 Unraveling the Science of Muscle Growth with Michael Roberts PhD (00:00:00)

2. Research on Squats and Hip Thrusts (00:00:02)

3. Muscle Hypertrophy and Fiber Hyperplasia (00:11:42)

4. Muscle Hypertrophy Drivers in Training (00:21:45)

5. Cellular Limit and Muscle Growth Patterns (00:34:32)

6. Hypertrophy and Factors Influencing Muscle Growth (00:43:02)