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(Reference retrieved automatically from Google Scholar through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biomechanical and biochemical properties of chicken calcaneal tendon under effect of age and nonforced active exercise

Full text
Author(s):
Nakagaki‚ W.R. ; Biancalana‚ A. ; Benevides‚ G.P. ; Gomes‚ L.
Total Authors: 4
Document type: Journal article
Source: Connective Tissue Research; v. 48, n. 5, p. 219-228, 2007.
Abstract

This study investigated if nonforced active exercise alters the biomechanical and biochemical properties of calcaneal tendon during maturation. Chickens at 1, 5, and 8 months old were divided into two groups: caged and penned. Intact tendons were used for biomechanical analysis, but they were divided into tensile and compressive regions for quantification of hydroxyproline and glycosaminoglycans. The exercise increased tendon strength after the fifth month, energy absorption in the eighth month, and ultimate tensile stress in the first month. Age increased tendon strength and energy storage and reduced stiffness but did not alter stress. There was an increase in collagen content in the fifth month. Glycosaminoglycans showed a progressive decline in the tensile region. Thus, some biomechanical and biochemical changes depend on the maturation process itself and also are influenced by spontaneous exercise, showing that mechanical stimulation of low intensity may help to improve the quality of the tendon. (AU)

FAPESP's process: 04/14358-5 - Morphological, biomechanical and biochemical analysis of tendon of obese Zucker (fa/fa) rats
Grantee:Adriano Biancalana
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 06/00044-4 - Morphology and biomechanics of the gastrocnemius muscle tendon of chicken with different ages
Grantee:Laurecir Gomes
Support Opportunities: Regular Research Grants