Osteoporosis. In a 2010 review of studies, exercise was widely recommended for reducing osteoporosis, falls, and related fractures. Long-term (greater than six months) supervised exercise enhanced bone strength in children but not adults. However, measurable increases in bone strength may take longer to achieve in adults as they are beyond the age of rapid bone growth. Another systematic review on optimizing bone strength throughout life revealed that the exercise groups showed significant improvements in physical function, pain and vitality compared to controls.