This can be caused by hip dysplasia in many of the larger bred dogs. Usually low slung back ends on a particular breed of dog such as a German Shepherd, Collie dogs, Border collies, etc. These animals run fast and count on the strength of their muscles in their back legs. As the dog gets older this can become a problem and the term 'if you don't use it you lose it' so this can cause muscle waste. There are great things being done with acupuncture and natural ways of dealing with stimulating the muscles in not only dogs, but humans. It would be to your advantage to talk to your vet and take your dog in for treatments of acupuncture. I have seen a program on this and the dogs feel quite comfortable and the results can be astounding.
Take it to the vet
mainly your legs but and your back a little
- Chest - Back - Abs - Upper Legs/quads - Lower Legs - Arms
aba, chest, shoulder legs, and back. no jaw muscle involved
the back legs on a grasshopper are much stronger so that when they jump in gives them more power which is why their back legs are normally blue that is the blood vein/muscle
every muscle especially legs, arms, back, neck, feet, ....
They use their back feet which they have alot of muscle strenght in the back legs
You could put muscle rub on a dog's back leg if they aren't feeling very good and they have sore legs. If so, you should probably take them to a vet instead.
TO make your legs thicker try to build up muscle in your legs running, biking etc. buiding muscle in your legs is better than trying to build up fat
The most muscle mass in a frog is in the hind legs.
There are no major muscle groups used in ice hockey. Because most likely every muscle is used. Those in the arms, legs, back, abdomen, neck, face and even eyes.
maybe for your legs