Dr Glenn McConell chats with Professor Luc van Loon from Maastricht University, The Netherlands. He is an expert with a wealth of knowledge on the role of physical activity/exercise and nutrition on muscle adaptation. A lot of his research focuses on protein and protein synthesis. He applies these studies to young healthy individuals, the aged and also has conducted important experiments on people in ICU. He makes it clear that most people, especially athletes, get enough protein in their diet so do not need to take supplements. Are there really non responders to exercise training? Anabolic resistance with aging is due to inactivity. Lots more. A very interesting chat.

0:00. Introduction2:09. How Luc got into exercise research6:30. Moving into protein metabolism8:05. Using tracers to determine exercise metabolism11:40. How much protein do we need?16:35. Protein rich foods after exercise17:00. Generally don’t need supplements.18:20. Food vs supplements19:35. Effects of lower protein intakes23:50. Protein turnover in some organs higher than muscle28:00. Optimal protein intake/additional protein31:00. Athletes eat more so likely don’t need extra protein34:00. Exercise increases protein uptake for up to 48hr38:40. Increased protein synthesis doesn’t necessarily mean increased muscle mass42:37. Protein needs of strength vs endurance athletes44:45. “Protein supplementation” just means above normal diet49:30. Misunderstanding of research findings re translation50:43. Need consistent exercise to adapt56:43. Plant vs animal proteins: not a big issue1:03:40. We are recycling a lot of protein each day1:05:33. Exercise stimulus and individual variations of adaptations1:07:50. Are there really non responders to exercise training?1:11:09. Re-sensitizing muscle by changing the stimulus1:12:42. Anabolic resistance with age (due to inactivity?)1:16:50. Muscle loss with aging largely episodes of bed rest etc1:20:17. Electrical stimulation prevents muscle loss in ICU1:25:06. Normal response to resistance training with aging1:34:22. Protein use during exercise1:36:16. Protein synthesis occurs during exercise1:40:00. Protein requirements when injuries/in bed1:41:40. Does collagen supplementation have benefits?1:45:20. What further studies would Luc like to do?1:46:10. Personalized diet and exercise prescription1:47:09. Sex differences, men and women studies etc1:49:22. Takeaway messages1:50:28. What’s most important, diet or physical activity?1:51:55. Outro

Inside Exercise brings to you the who's who of research in exercise metabolism, exercise physiology and exercise’s effects on health. With scientific rigor, these researchers discuss popular exercise topics while providing practical strategies for all.

The interviewer, Emeritus Professor Glenn McConell, has an international research profile following 30 years of Exercise Metabolism research experience while at The University of Melbourne, Ball State University, Monash University, the University of Copenhagen and Victoria University.

He has published over 120 peer reviewed journal articles and recently edited an Exercise Metabolism eBook written by world experts on 17 different topics (https://link.springer.com/book/10.1007/978-3-030-94305-9).

Connect with Inside Exercise and Glenn McConell at:Twitter: @Inside_exercise and @GlennMcConell1Instagram: insideexerciseFacebook: Glenn McConellLinkedIn: Glenn McConell https://www.linkedin.com/in/glenn-mcconell-83475460ResearchGate: Glenn McConellEmail: [email protected]

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Not medical advice