Due their history as hunters of rabbits and other small game, Whippets are extremely swift and agile. Even so, while these dogs need daily exercise like all breeds, their activity requirements aren't extreme. In a nutshell, Whippets do well with at least an hour of exercise per day, which should include activities like fetch that allow them to run, along with two or three 20- to 30-minute walks. A Whippet puppy can start exercising at 3-4 months per age by going on short (15-minute) walks, then you can increase the activity amount as the dog grows.
There are, however, a few precautions that should be taken. For one thing, Whippets have an incredibly high prey drive, and will chase practically anything that moves--so these dogs absolutely must be leashed when in public; yards will also need to be very well-secured, because a Whippet will without question chase every critter it sees. (And no, you won't catch it.) Whippets are also sprinters, not long-distance runners, so these dogs can tire and overheat more easily than you'd think. So during exercise sessions, make sure your Whippet has access to plenty of fresh water.
But your Whippet will definitely benefit from that hour of daily activity--and so will you. Under-exercised Whippets are known for going on hyperactive "tears" even when indoors: running like bullets through the house, knocking over everything in their paths. So a properly exercised Whippet will be calm and peaceful, and will sleep just fine each night. Here are a few exercise ideas:
- Walking: Two 30-minute walks per day is a good target
- Fetch/Frisbee: Gives a Whippet plenty of chances to run
- Hide and Seek: Great indoor activity on rainy days
- Agility Sports/Flyball: Whippets excel at canine sports
- Hiking: Great bonding activity
It should be noted that on rare occasions, an extremely muscular Whippet puppy will be born into a litter. These "double muscle Whippets," commonly called Bully Whippets, are due to a rare genetic mutation that causes the dog to have double the muscle mass of normal dogs. While they resemble human bodybuilders, Bully Whippets are perfectly healthy--but their exercise needs may differ somewhat from typical Whippets and be more like that of a Pit Bull.
Hulking muscles or not, dogs of this breed prefer the company of their families, so exercises that include human participation are best. And it's a good idea to have a consistent daily exercise schedule for your Whippet, such as 30-minute walks in the morning and evening combined with a period of "running" exercise in the afternoon.