As this kind of therapy becomes more common, Bruyette said, he's concerned that people offering it be properly trained. Veterinarian Bill Grant, president of the California Veterinary Medical Assn., echoes that: "As long as there is veterinary supervision on site, I think these ancillary treatment modalities are fine."
Earlier, Nixon lay prone on a mat as Kramer massaged his muscles and stretched his back right leg to improve flexibility.
"The first time I walked in, I thought, 'How is this going to work?' " said Jan Wieringa, a commercial producer and owner of Alaska, a Siberian Husky who's nearing her 12th birthday. "All these dogs together? But I haven't seen one skirmish."
Alaska, bedeviled by back pain, cancer in her front left leg and recuperation from surgery for an ACL tear, was gamely walking on an inclined dry treadmill. She's also carrying an extra 10 pounds.
"It's so hard to lose weight," Wieringa -- herself tall and slender -- said with a sigh. "She just lives for food."
Waldman's and Kramer's most delicate task involves jolting the egos of sensitive owners when they tell them that their pets with sore joints are, well, fat. "Ninety-five percent of the pets that come in here are overweight," Kramer said.
Most owners accept that diagnosis. "We do have a few clients who are actually appalled that we tell them that their pet is overweight," Kramer added. "They're like, 'Nooo, he's just a big boy!' "
Back in the water therapy room, Blackjack, a 2-year-old Bernese mountain dog, confidently trod on the treadmill, his plume of tail held high above the 20 inches of water in the tank. After an eight-week course of rehab, his arthritic elbows -- yes, dogs have elbows -- are better, and he's shed 10 pounds from his massive body.
"I have some relatives visiting and I said, 'I have to pick up my dog from physical therapy,' " said Sharon Graves, a venture capitalist, as she waited in the reception area for Blackjack. "And they started laughing and said, 'That's such an L.A. thing.' I said, 'You don't understand. It's helping!' "
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carla.hall@latimes.com