I have a debate going with DH about weightlifting. He lifted for a long time and put on a really good amount of muscle, but has since gone "off the wagon" of eating right/exercise and now his body fat % is higher. He feels that the muscle he gained has turned to fat. He would like to be very muscular/bulky again, if it's just a temporary muscle gain, he doesn't want to bother. He thinks that if he works out and gains all his muscle back, even if he continues eating right that the muscle will go away if he doesn't continue to lift.
I think he might be wrong, but I'm not sure why I think that. I have no idea how it works. Does muscle just turn to fat automatically if you're not weightlifting? FWIW, he is naturally a fairly trim person (he's just put on an extra 15 or so lbs recently so he's not pudgy or anything, just getting a litle soft), and he is also a competitive swimmer and swims on a masters team 3x/week. I think if he lifts again and continues to eat right, he will lose the fat, gain back the muscle, and keep it, even though he may not continue to put on more muscle if he stops lifting.
Is he right, or am I?
I should mention that this is all in selfish attempt to get him to bulk up a la Christian Bale in Batman...
Re: Anyone a personal trainer, or know about muscles/weightlifting?
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ditto pp--the muscle doesn't turn to fat. But if he has muscles, and then gains fat on top of the muscles, it's going to look even bigger (fattier) than if it was just fat on top of no muscles, kwim?
and ps, I totally just licked my computer screen. Hellooooo Mr. Bale.
I wish you would have called. The muscle does not turn to fat. It changes muscle fiber type and the muscle fibers get smaller with less exercise. Now given that the diet remains the same, then yes he would put on fat if he was not exercising. Weight loss happens when calories burned > caloric intake.
As for gaining muscle... he would have to continue working out at the same caliber that he was to gain the muscle and monitor his caloric intake. However, after the age of 50 he would deal with age related sarcopenia, which is when the muscles do get smaller, due to natural age progression.
" I think if he lifts again and continues to eat right, he will lose the fat, gain back the muscle, and keep it, even though he may not continue to put on more muscle if he stops lifting." But not because fat turns into muscle, or muscle to fat. Increases in muscle size would happen because he's losing fat surrounding the muscles and changing the fiber type/fiber size/and number of muscle fibers/cross sectional area. With less exercise, the reverse happens. It all goes back to way too much more science than you probably even need, but Id be more than happy to explain more if you need. Make me feel like my Masters Degree was worth something.
I know nothing about muscles but Mr. Bale doesn't quite do it for me the way these two do:
Actually I find that quite interesting!