***の踵骨骨量に影響を及ぼす要因

概要

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The number of elderly with osteoporosis is increasing annually in Japan. It has beenreported that the risk of developing osteoporosis in the future is inversely related to thepeak bone mass. In this report we assessed the effect of light physical activities on thebone status of female university students.The body compositions were measured by InBody 720, a body composition analyzer.The bone content of the calcaneus in the right leg was measured as the osteo sonoassessment index (OSI) with an AOS-100 ultrasonic bone density measuring instrument,and adjusted for age and gender (Z score). Exercise included heel raises, leg curls, kneeextension, sit-ups, back, climbing and descending stairs.We found that the mean bone content of the students who entered university in 2005was significantly lower 2 years later, in 2007.As well, in the group of students with increased bone content due to the exercise, softlean mass and fat free mass were significantly elevated and the amount of energy ingestionwas increasing more than the group of students with decreased bone content.Light exercise was important to prevent osteoporosis. Among female universitystudents, reduction of bone content is related to personal relations in ISE (Interpersonalstress event scale).