Alison Bentley, from the University of Madison published a study few years ago which showed that the pressure from collars on the dog’s neck causes elevated eye pressure, which can cause glaucoma. Only one minute of pressure was enough to do the damage. Harness in this case is more secure choice. Also, most of the injuries of the spine and neck in dogs occur because of tugging and pulling.
Does this mean that we should eliminate collar and opt for harness? Not necessarily. It depends on what breed and size is your dog, how he behaves and whether he is trained and obedient, also, what is his state of health.
Harnesses are recommended for smaller breeds of dogs, for flat-faced dogs who already have difficulty breathing ,for species with sensitive trachea or those with thinner neck .Problems with the use of harnesses can arise if harness is inadequate size. So it is not a bad idea to let the dog walk around the house wearing his new harness, while you pay attention to his movements, making sure that they are free and unobstructed. Harness too large is bad idea, in that case dog can pull it off easily.
For towing dogs there are their own specially designed harnesses that evenly distribute pressure on the dog’s chest, thus facilitating his efforts and reducing the possibility of injury.
If you own Stafford or Pit bull, it is likely that they will recommend you these types of harnesses in some pet shops (weight pulling and working blinders), even for a simple walk.
If you have a desire to strengthen your chest and arms, and at the same time afford yourself a serious workout, the idea is not bad. Although it is a lot more convenient to avoid this and train your dog right way.
Good training is actually the first thing you should consider when you choose a dog. Will you do it yourself or will you hire a professional, it depends on how much time (and money) you are willing to invest, but the basics, such as walking on a leash –you can do yourself. Collars should not pose a problem for larger, well-trained and obedient dogs.
In this case, the collar and leash are only an auxiliary means of communication between you and the dog, rather than a key tool by which you will control him. For breeds that do not have characteristics that put them at risk when wearing collars, it can be a great fit.
The distance between the collar and neck with large dogs should be around two fingers, and in the small ones one. Some owners who have aggressive dogs and those who are more difficult to control put choke collar, half-choke collar or collars with spikes. However, we don’t approve of this because the solution is not to hurt the dog because we are not able to control him.
Our suggestion is that you choose the right dog for you, find a trusted veterinarian and inquire about breed, possible problems and the equipment you should use. Please note that another living creature that will largely depend on you will come into your household.