Exercise is good for your bones, but not all exercise improves bone strength. Certain criteria must be met if your goal is to improve bone mineral density and build stronger bones. The exercise must increase force on your bones and surprise your skeletal system. Elliptical trainers provide non-impact, weight-bearing aerobic activity with lower joint stress than running. They can improve balance, coordination, muscular endurance and aerobic capacity, but after you’ve used an elliptical machine for awhile, it won’t have much effect on bone density.
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