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My friend was a hard practitioner of Karate, now he is not practicing it for the last one year. His muscles are quickly becoming tighter when doing regular works like carrying little weighted bags, boxes etc.

Is this things have any relation with stopping his Martial Arts practice?

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    This is a little hard to answer definitively, even if we treat hard as synonymous with serious or very frequent. There can be a whole range of reasons why someone's muscles are tightening up - the way the question is worded most answers will be speculation, which is not a type of question that is encouraged.
    – slugster
    Jun 4, 2013 at 8:43
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    I like the question, but I agree that it could be worded in a less-speculative way.
    – BenCole
    Jun 4, 2013 at 19:19
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    I don't speak for anyone else, but I get grumpy and ted to insomnia when I'm not getting my exercise. Jun 5, 2013 at 19:13

2 Answers 2

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I get severe problems with my back and joints. For example, I was training rigorously five to six times a week for about five months while preparing for a grading test. Immediately after, I went on a relaxing holiday, where I spent most of the time in stationary position. A week into my holiday, I got serious problems with my back – as in, I couldn't walk or even sit up straight. This has happened before, and now I try to keeping active during my holidays. I get similar problems with my knees and elbows (although this may be related to my hyperflexibility).

I've heard other similar stories. If they practice hard for a number of years, and then suddenly stop, their old injuries will come back to haunt them, because the muscles are not there to support any more.

Apart from the physical problems, I also experience mental issues. I get very grumpy, tired, demotivated and agitated – it also affects my sleep, like dmckee mentioned. This makes sense, because exercise releases endorphines, which makes you happy and "high". This is why people who suffer from depressions or stress are often told to exercise more. When you stop exercising, you experience withdrawals, just like with cigarettes or drugs (although in a milder form, of course).

I know this is not the "correct" scientifically proven answer, but it is my personal subjective experience.

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  • Well, there is enough scientific prove to most of the facts you have stated, to make this a good answer. Jun 11, 2013 at 14:52
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One generally becomes less flexible and of lesser endurance, and loses strength, when stopping a rigorous workout regimen. Reaction times increase as well. If an athlete stops doing the work that makes them an athlete, they will lose the attributes that mark them as an athlete.

It is likely that your friend, by not working out or by working out less than he once did, is experiencing a downward slide of his physical capabilities.

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