21.   This approach appears to maintain sufficient bone mass to stave off fractures from osteoporosis.

22.   Two types of exercise build and maintain bone mass and density, the NOF says.

23.   Weight training, even in elderly persons, increases bone mass.

24.   Minority woman had appeared in studies to have a genetically higher peak bone mass, so they were believed to be far less at risk for the condition.

25.   The study also found that those with lowered bone mass were more likely to end up with broken bones.

26.   Decreased bone mass is a characteristic of a condition known as osteoporosis, which makes bones more fragile, and is a factor in hip and other bone fractures.