Abstract:

BACKGROUND: Bone strength as one of national physical examination items is an important health index.
OBJECTIVE: To investigate the dancer’s bone strength features and the influential factors.
METHODS: A total of 60 dance professional subjects were included and bone mineral density was measured through the use of ultrasound bone mineral density apparatus.
RESULTS AND CONCLUSION: Bone mineral density was significantly greater in the dance professional subjects than in age cohorts. The bone mineral density of male and female dance professional subjects was significantly increased with increasing body mass index. The bone mineral density of female dance professional subjects was positively proportional to fat amount and negatively proportional to the amount of presumption trend of left leg muscle. Results showed that body mass index may be an important factor determining bone mineral density. There may be a threshold for exercise influencing bone strength, and under the threshold, exercise can increase bone mineral density and excessive threshold is of no use for increasing bone mineral density.