Influence of physical exercise on aging rats: II. Life-long exercise delays aging of tail tendon collagen
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Cited by (44)
An integrated approach to investigate age-related modifications of morphological, mechanical and structural properties of type I collagen
2022, Acta BiomaterialiaCitation Excerpt :The changes in tissue mechanical properties could be a combination between alteration of pre-existing collagen fibers and a progressive delay in their maturation, both dues to aging [25–27]. Viidik et al. have reported a clear relationship between mechanical properties of tendons (Young's modulus) and age [28]. The age related changes in mechanical properties of other connective tissues have been correlated with their morphological and biochemical changes [29,30] and mechanical properties such as collagen density [16,31].
The mechanical and biochemical properties of tail tendon in a rat model of obesity: Effect of moderate exercise and prebiotic fibre supplementation
2019, Journal of BiomechanicsCitation Excerpt :However, little is known about the effects of chronic exercise on non-weight bearing tendons in young and old animals. Viidik et al. (1996) reported a decrease in tail tendon Young’s modulus in older animals as we observed here in the present study (Viidik et al., 1996). But the mechanism behind this change is not well understood.
Muscle deconditioning and aging: Experimental models
2018, Conn's Handbook of Models for Human AgingMuscle wasting and aging: Experimental models, fatty infiltrations, and prevention
2016, Molecular Aspects of MedicineCitation Excerpt :The animals most frequently used for studying intervention strategies against skeletal-muscle aging are rats and mice. Yet even in rodents, life-long interventions still require 18–26 months of follow-up and are therefore costly and time-consuming (Kovanen and Suominen, 1987; Leeuwenburgh et al., 1997; Viidik et al., 1996). Senescence-accelerated mice (SAM) represent rodent models characterized by accelerated senescence and age-related pathologies (Takeda, 1999).
Elastin content is high in the canine cruciate ligament and is associated with degeneration
2014, Veterinary JournalCitation Excerpt :Collagen fibril size distribution changes with age in all extraocular tissue contributing to increased strength (Parry et al., 1978). Furthermore, the mechanical environment can affect ligament structure and strength (Parry et al., 1978; Davankar et al., 1996) and exercise can induce local and systemic change to tendon and ligament (Woo et al., 1980, 1981; Viidik et al., 1996; Nielsen et al., 1998). Given that all of our dogs had been in training within the previous 6 months, we believe that the increase in collagen reflects both age and the influence of training.
Collagen type I amide I band infrared spectroscopy
2011, MicronCitation Excerpt :In spite of this, physical exercise is considered an effective factor in delaying aging in rat tendon collagen, and tendons of trained animals are clearly stiffer than untrained animals (Vilarta and Vidal, 1989). Inter-fibrillar proteoglycans may also play a role in the biomechanical properties of the tendon (Viidik et al., 1996; Singh, 2000; Boskey and Camacho, 2007) as proteoglycans are oriented in tendons (Vidal, 1965, 1986, 2003; Mello and Vidal, 2003) and participate in the control of collagen fiber diameter determined by decorin (Kjaer, 2004; Boskey and Camacho, 2007). In conclusion, the macromolecularly oriented tendon collagen fibers analyzed in this study showed FT-IR amide band I width and peaks consistent with the collagen fiber composition and its supraorganizational characteristics and properties.