Exercise and play
How can I tell if my dog is out of shape?
Last updated 23 September 2026 · How we write and check this
Short answer
Signs a dog has lost fitness include getting winded on walks that used to be easy, needing more recovery time after play, a softer feel along the back and hindquarters, and reluctance to do activities like stairs or jumping into the car that were once effortless. Building activity back up gradually over several weeks addresses it.
Comparing to the dog's own baseline
Fitness is relative to the individual dog, so the most useful comparison is to how that same dog managed a familiar walk or activity a few months earlier, not to a breed average or another dog entirely.
Physical signs beyond breathing
Muscle along the thighs and back that feels softer than it used to, a rounder middle, and slower recovery after a normal amount of play all point toward reduced fitness even before weight gain becomes visually obvious.
Rebuilding safely
Increasing walk time or intensity by roughly 10 percent every week or two, rather than returning straight to a previous peak level, reduces the risk of muscle soreness or injury while fitness returns.
Key takeaways
- Compare a dog's current stamina to its own past baseline rather than to other dogs.
- Softer muscle tone and slower recovery after play often show up before visible weight gain.
- Rebuild fitness gradually, around 10 percent more activity every week or two.