Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16603
Title: Effects of weight bearing and non-weight bearing exercises on bone properties using calcaneal quantitative ultrasound
Authors: Yung, PS
Lai, YM 
Tung, PY
Tsui, HT
Wong, CK
Hung, VWY
Qin, L
Issue Date: 2005
Source: British journal of sports medicine, 2005, v. 39, no. 8, p. 547-551
Abstract: Objective: This study was designed to investigate bone properties using heel quantitative ultrasound (QUS) in young adults participating in various sports. Methods: A cross sectional study was performed on Chinese male students (n = 55), aged 18-22 years. Subjects with previous fractures or suffering from any diseases known to affect bone metabolism or taking any medication with such an effect, were not included. The subjects were categorised according to their main sporting activities, including soccer (n = 15) (a high impact, weight bearing exercise), dancing (n = 10) (a low impact, weight bearing exercise), and swimming (n = 15) (non-weight bearing exercise). A sedentary group acted as controls (n = 15). A reproducibility study of the velocity of sound (VOS) and the broadband ultrasound attenuation (BUA) measurement was performed and analysed using the intraclass correlation coefficient (ICC). Results: There was good intra-investigator and inter-investigator agreement (ICC≥0.8; p<0.05) in the measurement of BUA and VOS. No significant differences in BUA and VOS (p>0.05) were found between the dominant and non-dominant heel. Soccer players (137 ± 4.3 dB/MHz; 1575 ± 56 m/s; 544.1 ± 48.4) and dancers (134.6 ± 3.7 dB/MHz; 1538 ± 46 m/s; 503.0 ± 37.0) had significantly higher BUA, VOS, and stiffness index (SI) scores (p<0.05), respectively, than swimmers (124.1 ± 5.1 dB/ MHz; 1495 ± 42 m/s; 423.3 ± 46.9) and the sedentary control group (119.9 ± 6.1 dB/MHz; 1452 ± 41 m/s; 369.9 ± 46.4). A trend of a significant linear increase with the weight bearing and high impact exercise was revealed in all QUS parameters (p<0.05). Conclusion: This cross sectional study indicated that regular participation in weight bearing exercise in young people might be beneficial for accruing peak bone mass and optimising bone structure.
Publisher: BMJ Publishing Group
Journal: British journal of sports medicine 
ISSN: 0306-3674
EISSN: 1473-0480
DOI: 10.1136/bjsm.2004.014621
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

62
Last Week
0
Last month
1
Citations as of Sep 2, 2020

WEB OF SCIENCETM
Citations

53
Last Week
0
Last month
0
Citations as of Sep 17, 2020

Page view(s)

151
Last Week
0
Last month
Citations as of Sep 14, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.