Explain the effects of exercise on bones and joints?

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Answers:
Exercise has no real effect on the bones and joints except to wear them out. Exercise works better for muscles. Like your heart, and lungs, altho they are not entirely muscle. I was in the Army for over 10 years, and pretty much exercised every day. All I have to show for it is 2 bad ankles, a back back, a bad shoulder, and both wrists bad. However, I did have good strength and stamina, a strong heart and good lungs. Exercise wears out the cartilage between bones, and eventually the ends of the bones. Rather than just exercise, I think a heathly diet is what is key to being healthy. And obtaining the proper diet allowed enough exercise, imagine running after an animal to hunt, or walking for hours to obtain fruits, and finding water. And of course, because of the level of medical care, you actually live long enough to pass between centuries almost. I don't think we were meant to live this long. So by the time your reaching those ages you would be to weak to hunt so you would succumb. I guess I am kinda off topic to answer your question, but, in my opinion, exercise is actually harmful to bones and joints.

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Ant is sadly sadly mistaken.Exercise has fantastic effects on bones and joints when it is not over done. (This is coming from a Physical Therapist) Exercising burns calories, burning calories helps you to lose weight. Maintaining a healthy weight takes a load off of your joints and they don't have as much stress on them as when you carry around extra weight. Therefore preventing your body from having that extra load witll decrease your risk for needing joint replacements etc. Also.When you are over weight, and you don't exercise your ligaments (those are what keeps your bones in good alignment) get lax, and you are more susceptible to injuries such as sprains, breaks, strains, and muscles tears.And one more thing.Exercising gets your joints moving.the more you move the more lubrication your joints produce.therefore reducing the bone on bone friction taking place. This lowers your risk of osteoporosis and arthritis.When your joints lack lubrication.that is when the cartilage begins wear down from friction.So you see, not only does exercise benefit other systems of your body, it greatly benefits your joints.Not to mention all the other things it prevents in your joints.such as stiffness, edema, aches and pains, etc, etc. that happen when you lay on your couch forever and don't move.

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Exercise makes muscles to pull the bones thereby strengthening them. This also leads to the joints to be so flexible. Exercise builds muscle strength while burning fat and maintaining bone density.
Exercise is good for all age groups. Children should be encouraged to exercise more often especially before adolescence, since bone mass increases during puberty and reaches its peak between the ages of 20 and 30.

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u will ache 4 days but you'll benefit in the long run! exercise cant hurt u.

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Bones and joints adapt just as muscles do (and all other body tissues).

Lack of use will cause the various abilities to diminish (atrophy), and overuse will cause injury. Somewhere in between, there is an appropriate level of activity, that will enable the muscle, joint or bone to adapt to the demands being placed on it, and become more capable. This 'middle ground' is where exercise can help.

Synovial fluid is particularly useful to joints. This is a lubricant produced by the 'synovial membrane' that surrounds each joint. It prevents the 'articular cartilages' at the bone ends from rubbing on each other (they slide on a layer of the fluid), so that they don't wear away.

The main purpose of a 'warmup' is to stimulate this membrane, and cause extra fluid to be made; the fluid also carries nutrients into the joint so that any damage can be repaired, and the joint can be strengthened (there is no blood supply inside the joint).

Bones benefit from exercise because their growth is 'targeted' by the stresses they experience.

(Just like having an engineer constantly testing the parts of a building, to see which parts need the most maintenance.)

Cells called 'osteoclasts' (bone breakers) are constantly removing bone material, all over the body. When action is needed, and adrenaline 'powers up' the muscles, Cortisol is also produced, to increase the Osteoclasts' activity. This produces a 'pool' of bone material, which can be used by Osteoblasts ('bone producers') to reinforce the parts of the bones where most of the forces are found.

In this way, the bones adapt precisely to the particular activity.

Unfortunately, in modern life, the common sources of Adrenaline (and Cortisol) are stress-related, so the 'freed' bone material is not targeted to any site, because there is not enough activity. That means bone is constantly lost.

Warmups are not usually included in exercise regimes, or are used for other purposes than 'synovial stimulation'. That means that the exercise starts without enough lubricant to separate the articular cartilages, so damage can easily be caused to them.

Explain the effects of exercise on bones and joints?

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