Low-Impact Exercise for Overweight Dogs

Vets estimate around half of UK dogs are overweight, according to UK Pet Food’s obesity report, up from 45 per cent a decade ago. And the standard advice, more exercise, has a design flaw: an overweight dog’s joints are already overloaded, and enthusiastic exercise on a heavy body is how weight problems become joint problems. The extra load is a main driver of arthritis, and a heavy dog that gets sore stops moving, which is the wrong direction entirely.

So the job is specific: reduce the weight without punishing the joints on the way down. Diet does most of the losing; exercise’s job is to protect muscle, joints and morale while it happens.

First, the vet

Before changing anything, a vet visit earns its keep three ways: it confirms how much weight there is to lose and sets a safe rate; it rules out conditions that cause weight gain or make exercise risky; and it checks whether joints are already sore, which changes what exercise is sensible. Most practices run free nurse-led weight clinics, which provide the single most useful tool in this whole process: someone else weighing your dog every fortnight.

What works

More walks, not longer walks. Three 20-minute steady walks beat one 60-minute trudge: same total, less continuous load, and easier on an unfit dog. Pace matters more than distance; a purposeful steady walk works better than a stop-start amble.

Soft ground. Grass, woodland paths and sand are kinder than pavement. Same walk, less impact.

Sniffing as exercise. Scent work is genuinely tiring for dogs and costs the joints nothing. A slow “sniffari” walk, scattered-food searches in the garden, and food puzzles all burn energy and occupy the dog that used to be occupied by eating.

Water, done properly. Swimming is the closest thing to a cheat code here: real muscular effort with the weight supported. For a heavy, unfit dog, hydrotherapy is the controlled version, warm water, managed effort, short sessions, a professional watching, and weight management is one of the standard referral reasons. It also suits dogs already too sore for much land exercise, which is exactly the trap overweight dogs fall into. The complete guide covers how it works and what it costs.

Building up gradually. Whatever the starting point, add duration in small weekly increments rather than jumps. The dog’s enthusiasm is not a gauge of its fitness; plenty of overweight dogs will cheerfully overdo it and pay the next day.

What to avoid until the weight is down

• Ball launchers. Repeated sprinting, skidding and twisting is the highest-impact thing most dogs do, and on a heavy body it is a joint injury on layaway.
• Jumping, on and off furniture, in and out of car boots. Use ramps for big dogs.
• Weekend-warrior patterns. Nothing all week, then a huge Sunday hike, is the human injury pattern and the canine one too.
• Exercise in heat. Overweight dogs overheat faster and more dangerously; in warm weather, go early, go short, and let water work carry more of the load.

The part nobody likes hearing

Exercise alone rarely fixes a dog’s weight, because the maths is against it: a biscuit undoes a walk. The food side, measured meals, treats counted within the daily ration rather than on top of it, and one household rule about scraps, is where the loss actually happens. The exercise side keeps the muscle so that what remains is a fitter dog, not a smaller weak one. Run both together, with the vet’s plan and the fortnightly weigh-in, and the results are reliably good: this is one of the most fixable problems in this whole library.