Data analysis of the speed of sound detection of right calcaneus in 224 adults from Guangdong province / 中国组织工程研究

ABSTRACT

To obtain the sound speed data of the right calcaneus of adults in different ages in Guangdong province,we measured the speed of sound of right calcaneus of 224 adults aged 20 to 70 years by the OSTEOSPACE type ultrasound bone densitometry(MEDILINK Company in France) .The results showed that the maximum of the right calcaneus speed of sound occurred at the age of 31-40 years in female(1 591.61?38.14) m/s and 21-30 years in male(1 600.66?30.09) m/s.After the right calcaneus speed of sound reached the maximum,it began to decrease with the age in both male and female.The right calcaneus speed of sound decreased significantly at the age of 41-50 years in male,and at 51-60 years in female.The speed of sound in female at the age of 21-30 years is markedly lower than that in male.The experiment indicates that the speed of sound of right calcaneus decreases with age after reaches the peak.That the speed of sound decreases significantly in male is earlier than that in female.