#43 - The importance of exercise in space with Dr Scott Trappe

Dr Glenn McConell chats with Professor Scott Trappe, Director of the Human performance laboratory at Ball State University, Indiana, USA. We spoke about the influence that Scott’s supervisor, the great David “Doc” Costill, has had on exercise physiology (long time Ball State HPL Director before Scott). We then discussed the negative effects of space on the human body and whether exercise can minimize these negative effects. In space slow muscle fibers atrophy more than fast fibers and there is a large shift to fast fiber types. Exercise attenuates this. A very interesting, relaxed, fun chat. @HPLBallState 0:00. Introduction etc
3:22. Ball State, David Costill and Scott’s background
10:30. Space research: Bob Fitts, David Costill and Scott.
14:50. Retesting champion runners 25 plus years later
19:16. Space flight experiments, biopsies in Russia etc
20:43. Effects of space on physiology, fluid shifts etc
27:08. Slow muscle fibers atrophy more than fast fibers
29:50. Integrated physiology
31:40. Lower body negative pressure/exercise in space
37:22. 6 months and longer in space: Moon, Mars
40:10. Biopsies within 6-8 hrs after get back from space!
44:22. Appetite in space
46:09. Exercise around 90 min/day in space
47:23. Exercise provides partial protection and less fibre type shifts
50:34. Bed rest studies
52:10. Bone loss / not much pharmacology in space
53:02. Less interfering effects on exercise responses in space
55:08. Fiber type shifting with inactivity/space/exercise
1:00:30. Hybrid muscle fiber cells. Myosin heavy chains
1:04:16. Time course of bone loss/recovery
1:06:14. Is exercise before space flights protective?
1:07:19. Space travel, exercise and insulin sensitivity
1:08:06. VO2 max and the heart after space travel
1:10:43. Space flight increases the velocity of muscle contraction
1:16:45. Medications in space
1:18:00. Eccentric loads in space
1:19:04. Huge multi lab NIH exercise research project: MoTrPAC
1:28:59. Takeaway messages
1:30:43. David Costill: 87 and still training like an athlete!
1:34:30. Scott’s exercise training and racing
1:37:37. Banter about dos and don’t in the lab
1:38:52. Glenn’s Copenhagen sabattical plans/trip to Indiana?
1:41:30. Outro (9 secs) 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).
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Not medical advice