What are some signs of aging in dogs?
Physical injury and age-related decline is generally associated with connective tissue structures such as ligaments, tendons, aponeuroses, fascia, bone, blood vessels and other joint structures. Muscle tissue itself is not affected as often as is thought. If you picture the cross section of your pet’s (dogs, cats, etc.) leg muscle group, it would be similar to the cross section of a large industrial copper cable. A rubberized coating covers the entire cable. Inside the outer coat are sub groups of copper cables that are also covered with rubberized sheaths and so on, until you get down to individual copper strands. The leg itself has many insulating sheaths (connective tissue) that reinforce and protect the muscle fibers (copper wires) from stress and trauma. The protective sheaths receive all the transference of force that occurs during training. In other words, the tissue that receives the bulk of the stress associated with exercise is the connective tissue associated with the muscle
