Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23141
Title: Comparison of therapeutic ultrasound and exercises for augmenting tendon healing in rats
Authors: Ng, GYF 
Ng, COY
See, EKN
Keywords: Biomechanics
Connective tissue
Dosage
Exercise
Healing
Injury
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Issue Date: 2004
Publisher: Elsevier
Source: Ultrasound in medicine and biology, 2004, v. 30, no. 11, p. 1539-1543 How to cite?
Journal: Ultrasound in medicine and biology 
Abstract: We compared therapeutic ultrasound (US) and exercises on Achilles tendon healing in 49 mature male rats. The medial Achilles tendon of the right leg was transected and the rats were divided into five groups: 1. control (n = 9), 2. 1 W/cm 2 US (n = 9), 3. 2 W/cm® US (n = 10), 4. running (n = 11) and 5. swimming (n = 10). All animals were treated daily, starting from postsurgical day 5, according to their group assignment, except for group 1 control. Achilles functional index (AFI) was recorded pre- and postoperatively. On day 30, the Achilles tendons were biomechanically tested. Results revealed that groups 3 and 4 had higher tensile strength than the controls (p = 0.037 and 0.034), but groups 2 and 5 were not different from the controls. No significant difference in stiffness (p = 0.21) or AFI (p = 0.22) was found. These findings suggest that therapeutic US treatment at 2 W/cm 2 and running exercise improved the strength of repairing Achilles tendon.
URI: http://hdl.handle.net/10397/23141
ISSN: 0301-5629
EISSN: 1879-291X
DOI: 10.1016/j.ultrasmedbio.2004.08.030
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