They might not understand the aerobics instructions and they can't use free weights, but it's possible that our pets may be just as valuable as expensive exercise machines in helping us humans lose weight.

A 12-month study recently completed has shown that exercising with your dog has several positive benefits for both owner and pets. The People and Pets Exercising Together (PPET) study showed people who are trying to lose weight often need a positive support system of friends, co-workers and relatives. Exercising with your pet however, brings unique encouragement and fun not seen in other programs.

An owner who desires to lose weight can count on consistent prompting from their canine buddy to exercise. The need for the dog to go outside is a positive influence, encouraging activity. Most owners see their daily walks with the pet as enjoyable and less like exercise. Beyond the prompting to exercise, our pets also affect our desire to succeed because of parental pride. Most pet owners consider their dogs and cats to be members of the family and when the pet loses weight as well, you can see the delight in the owner's eyes. Watching the pride pet owners have while walking their dogs around Wooster's Kinney Building is sure to prove my point.

Just like you, your pet may not be ready for a mini-marathon. Increase the amount of time spent walking gradually. For some very obese dogs, you might begin with simply walking to the end of the block, then gradually working up to longer distances.

It's also important to realize that your pet will be very excited and not know to take it easy. Every spring, I see dogs with ruptured cruciate ligaments, painful hips, and other injuries because of over-exertion. Learn your pet's limits and help him build strength and stamina.

Cats should not be left out of these activities either. Spending 20-30 minutes doing play activities with your kitty can help her lose weight as well. Use laser pointers to increase activity or allow the cat to search/hunt for her food by placing multiple bowls around the house in high and low places. Similarly, a Tricky Treat Ball can help by stimulating activity and reward your cat with her favorite treats.

Don't forget the appropriate diet! For overweight pets, a light diet or even a prescription-reducing diet from your veterinarian might be appropriate. Be sure to get your pet a good physical exam before starting any weight loss or exercise program. Your veterinarian can help you find the right rate of weight loss for your pet and will have additional ideas on exercise routines and proper diets.

Cultural changes have led to a significant increase in obesity among both humans and pets. Although the study was small, the PPET study effectively showed that our pets can be supportive exercise partners. Now grab that leash and get going.

Dr. Roger Redman is a veterinarian and owner of Ark Veterinary Hospital Inc. in Wooster.