Effects of physical exercise on the elasticity and elastic components of the rat aorta
To evaluate the effects of exercise on aortic wall elasticity and elastic components, young male rats underwent various exercise regimes for 16 weeks. In the exercised rats, the aortic incremental elastic modulus decreased significantly when under physiological strain. The aortic content of elastin increased significantly and the calcium content of elastin decreased significantly in the exercised group. The accumulated data from the exercised and sedentary groups revealed that the elastin calcium content was related positively to the incremental elastic modulus. We concluded that physical exercise from an early age decreases the calcium deposit in aortic wall elastin and that this effect probably produced in the exercised rats a distensible aorta.
Key wordsPhysical exercise Elastic modulus Elastin Calcium
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- Bergel DH (1961) The static elastic properties of the arterial wall. J Physiol (Lond) 156:445–457Google Scholar
- Fleckenstein A, Frey M, von Witzleben H (1982) Vascular calcium overload — a pathogenic factor in arteriosclerosis and its neutralization by calcium antagonists. In: Kaltenbach M, Neufeld HN (eds) Proceedings of 5th International Adalat Symposium. Exerpta Medica, Amsterdam, pp 36–52Google Scholar
- Fuwa K, Haraguchi H (1980) ICP emission spectroscopy. Nankohdo, TokyoGoogle Scholar
- Matsuda M, Nosaka T, Sato M, Ohshima N, Fukushima H (1988) Effect of prolonged voluntary running on biochemical and biomechanical properties of rat aorta. J Jpn Coll Angiol 28:477–480Google Scholar
- Pickering GW (1968) High blood pressure. Churchill, London, pp 23–25Google Scholar