However, everyone get arthritis when they age. There is no way to avoid it. The degree or severity depends on a number of factors such as overall health, how much wear and tear, and how much damage was incurred over a period of time.
The cells in your body which includes that of the ligaments and cartilages have a limited in how many times they can replicate. When you damage an area of your body, the cells in that area accelerate their rate of replication to replace the damaged tissues which in effect causing them to approach that limit sooner than otherwise. When a cell reach that limit, it can no longer replicate and your body loses the ability to fully replace damaged tissues.
So long as you don't over do it their should be almost no detrimental effect. If anything it should help.
Conditioning your bones in this way causes micro fractures which your body repairs and makes stronger and bigger (paleontologist could tell the way a caveman walked by where the bone had been built up.)
As you get older your body pretty much starts falling apart if there's more of you to begin with it will take longer to fall apart.
Of course their are issues if you over do it and dont give your bones time to repair.
Or if you do it incorrectly so that a bone spreads into a space where it would rub against another bone though this would be hard to do.
Children under 16 should not perform this sort of conditioning as their bones are softer and it could result in long term damage for them.
Dont worry about it drink water.
It really all depends on how it is done. Bagwork without protection, depends largely on what is in the bag and the level of conditioning of the person doing the hitting. If you filled the bag with softer material I think it would be OK. If you filled it with something hard and heavy then maybe it is not OK.
The age of the student matters too. You don't want to do too much bag work with younger children and you want to make sure younger children are supervised when using the bag. Their bones are still soft and they grow, so damage is done easily. The bag for kids is merely supposed to present a target not teach power punches and hitting as hard as possible.
Gloves alone generally do not protect you all the way from the impact and compression to the joints either. So excessive or incorrect bag work even with gloves can take it's toll at old age too. Shins probably not so much.
Does practising martial art lead to old-aged bone pain when u get older like 55?
Traditional training such as punching a bag without gloves, and kicking a bag without shin guards.
Apparently some martial teachers have their students train without any protection equipment.
