Should you increase the amount of calcium you take to prevent injuries?

Prevent fractures. Calcium, along with vitamin d, will help prevent fractures due to osteoporosis. Calcium, however, does not prevent other types of "injuries." the recommended amount of calcium one should take to prevent osteoporosis is approximately 1800-2000 mgs. Per day. This can be achieved through a combination of supplements and foods high in calcium (milk, cheese, yogurt, etc.).
See below. It may help your bones if you are calcium deficient, but there are many other factors that affect injury recovery other than bone regrowth.