when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
"gym.gravity" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
My opinion is that nervous system changes - improved coordination/skill at performing the new exercise - are what will happen first, and they may be the only things that happen depending on a lot of things.
"gym.gravity" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
My opinion is that nervous system changes - improved coordination/skill at performing the new exercise - are what will happen first, and they may be the only things that happen depending on a lot of things.
It may depend on which muscles you're talking about. This study found a difference between muscles working through a single degree of freedom vs those working through multiple degrees of freedom: http://jn.physiology.org/cgi/content/abstract/94/5/3058
I think I'm about to buy a basic physiology text like "Exercise Physiology" by Brooks in order to understand these things better. Anyone use his text?
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
Pain. ;-) First time I ever tried squatting I was flexible and conscientious and did a nice heels-down flat-back head-up rock-bottom double with the 45# barbell, felt great. Then woke up the next morning and crawled to the bathtub, spent the next several days maxing my aspirin intake, hobbling around and taking the elevator because stairs hurt too much.
Good news is, if you keep at it the pain goes away and doesn't come back.
"gym.gravity" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
First, that muscle hurts. Then, I continue to work it, and it hurts even more. After a week or two, the pain subsides, and as long I wasn't pushing things too hard, it settles into the orchestra of circadian workout/recovery like all the other muscles in my body. I don't particularly care about mass, just performance, so changes in muscle mass are generally unnoticeable.
>when an unused muscle group starts being used? What changes take >place >over the first months of someone starting a new resistance exercise, >like a runner doing a calisthenic routine, light weights, or even >something aerobic like cross country skiing, rowing or swimming? I >would think that one of the first changes (that might appear to be >"mass"😉 would be an increase in glycogen storage by the muscles being >used (water, salt and glycogen). Maybe an increase in "mass" due to >increased # of mitochondria, if the excercise was light and aerobic >enough? Maybe even "increased mass" because of capilarization and the >resulting blood volume increase? > >Opinion as well as fact welcomed.
Pain. ;-) First time I ever tried squatting I was flexible and conscientious and did a nice heels-down flat-back head-up rock-bottom double with the 45# barbell, felt great. Then woke up the next morning and crawled to the bathtub, spent the next several days maxing my aspirin intake, hobbling around and taking the elevator because stairs hurt too much.
Good news is, if you keep at it the pain goes away and doesn't come back.
Yeah, but you're supposed to add more weight over time you know.
"gym.gravity" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
Whenever I do work that my body is unused to, I gain mass, probably, as you suggest, from increased glycogen storage. But at other times it can be from swelling. I believe this is what happens after ultra-type long runs. I've sometimes gained substantial weight in the day or two after such runs, as much as 8-10 pounds. It shows up visibly in the legs, but disappears after 4-5 days.
when an unused muscle group starts being used? What changes take place over the first months of someone starting a new resistance exercise, like a runner doing a calisthenic routine, light weights, or even something aerobic like cross country skiing, rowing or swimming? I would think that one of the first changes (that might appear to be "mass"😉 would be an increase in glycogen storage by the muscles being used (water, salt and glycogen). Maybe an increase in "mass" due to increased # of mitochondria, if the excercise was light and aerobic enough? Maybe even "increased mass" because of capilarization and the resulting blood volume increase?
Opinion as well as fact welcomed.
The first change that starts taking place is motor learning or skill acquisition. After that it depends upon the duration and intensity of the new task. Mitochondria are not an adaptation that is that easy to do, as well as capillarization and an number of other physiological changes. If mass is increased immediately it is could be due to glycogen stores being increased after depletion. If the exercise is unused to and strenuous it could also be fluid deposits due to damage done. Shouldn't last long, if that is the case.
