2016 Volume 23 Issue 1 Pages 89-94
For companies, having employees work in good health is essential to raising productivity. However, bone density declines in middle age and the number of people who suffer fractures is said to be increasing. Those who suffer fractures must be hospitalized or make repeated visits as outpatients, and undergo rehabilitation, which is thought to be directly linked to decreased productivity. To minimize fractures, efforts to obtain higher bone density starting in childhood are important. Detailed information on the body composition and bone mineral density of Japanese children is needed to do this in Japan, but almost no studies have dealt with the age-related changes in bone mineral density during childhood. In this study we evaluated bone using a stiffness value, and by configuring collective data based on a cohort method we attempted to establish a standardized system of evaluating bone density and to construct a bone density evaluation chart based on the changes with age. The validity was then investigated. We then sought ways to manage the physical qualities of these corporate warriors to raise productivity.