If you have a strong or very large dog, a harness gives you much better control and is also easier on your arms and back. Very small dogs can be prone to injury from pulling or tugging on the leash. A harness disperses pressure over a larger area of his body, reducing strain on his neck and back.Are harnesses good for dogs?
A strongly built harness is not only good for walks, but it can help a dog with a physical disability or injury to regain his or her mobility. Even if the dog is unable to regain full mobility, a harness allows the owner to effectively assist the dog with moving around and walking up and down stairs.