Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model
Joint Authors
Liu, Sheng-Yao
Lei, Lei
Li, Zhe
Zhou, Yue-Zhu
Zhan, Li-Qiong
Ni, Guo-Xin
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Objective.
To understand the changes of femoral cartilage in response to treadmill running with different intensities in the hope of differentiating “moderate” and “strenuous” running in a rat model.
Method.
A total of 24 male Wistar rats were randomly assigned into groups of sedentary (SED), low-intensity running (LIR), medium-intensity running (MIR), and high-intensity running (HIR).
Rats in LIR, MIR, and HIR groups underwent 8 weeks’ treadmill running programs.
After sacrificed, femoral condyles were collected to take histomorphometric analysis and immunohistochemistry for collagen II.
Results.
Gross and histological observation showed osteoarthritic changes in group HIR.
In comparison to SED group, there was significant increase in cartilage thickness, number of chondrocytes, and GAG content in groups LIR and MIR.
Conversely, decrease in cartilage thickness, chondrocyte number, and GAG content was found in rats of HIR group, without significant difference though.
In addition, in comparison to SED group, HIR group exhibited disorganization of collagen fibril and significantly lower content of collagen type II.
Conclusion.
An intensity-dependent effect was suggested on the articular cartilage.
Our results also demonstrated that running with low-to-medium intensity applied in the present study should be regarded as “moderate” running, whereas high-intensity running as “strenuous” running.
American Psychological Association (APA)
Ni, Guo-Xin& Liu, Sheng-Yao& Lei, Lei& Li, Zhe& Zhou, Yue-Zhu& Zhan, Li-Qiong. 2013. Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model. BioMed Research International،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1030153
Modern Language Association (MLA)
Ni, Guo-Xin…[et al.]. Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model. BioMed Research International No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1030153
American Medical Association (AMA)
Ni, Guo-Xin& Liu, Sheng-Yao& Lei, Lei& Li, Zhe& Zhou, Yue-Zhu& Zhan, Li-Qiong. Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1030153
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1030153