Core strength could help dogs avoid knee injuries

Date:
February 17, 2022
Source:
Washington State University
Summary:
Agility dogs lacking core strength from routine physical exercise
may be more susceptible to one of the most common canine knee
injuries, a cranial cruciate ligament rupture, which is similar to
an ACL tear in humans. According to a research survey documenting
activity and injury odds of more than 1,200 agility dogs, just
about any physical exercise seems to lower the risk of rupturing
the ligament, but some exercises seem to increase the risk. In
addition, the size and shape of the dog - - and thereby certain
breeds -- were also found to be at higher risk.

Balance and core strengthening exercises as well as activities
like dock diving, barn hunt and scent work are associated with a
decreased rate of ligament rupture.



FULL STORY ========================================================================== Agility dogs lacking core strength from routine physical exercise and
those participating in activities like flyball may be more susceptible
to one of the most common canine knee injuries.


==========================================================================
That knee injury is a cranial cruciate ligament rupture, which is
equivalent to an anterior cruciate ligament (ACL) tear in humans.

According to a research survey documenting activity and injury odds of
more than 1,200 agility dogs, just about any physical exercise seems
to lower the risk of rupturing the ligament, but some exercises seem to increase the risk.

In addition, the size and shape of the dog -- and thereby certain breeds -
- were also found to be at higher risk.

"Balance exercises, wobble boards, anything that improves the core
strength of the dog seemed to lower the odds of a ligament tear," said
Deb Sellon, a Washington State University veterinarian and lead author
on the study published inBMC Veterinary Research. "We found fitness
matters for dogs just like it does for people, and we haven't shown
that before." Sellon is also the founder of the university's Agility Dog Health Network, which was accessed in the study. By using odds ratios,
which is essentially a statistical risk assessment, Sellon and Denis Marcellin-Little, a veterinary orthopedic specialist with University of California, Davis, looked for trends in 1,262 agility dogs -- 260 that
tore the ligament and 1,002 dogs that did not.

In addition to balance and core strengthening exercises activities like
dock diving, barn hunt and scent work are associated with a decreased
rate of ligament rupture, too.



========================================================================== While regular activity, like swimming, playing fetch or frisbee,
walking or running didn't increase the risk of injury, it didn't lower
the odds either.

Surprisingly, dogs that competed more frequently in agility events and
competed at a higher level on more technically rigorous types of courses
were less likely to rupture their cruciate ligaments.

The only physical activities that increased the odds of injury were short
walks or runs over hilly or flat terrain on a weekly basis, and many of
those injuries were in dogs early in their agility career that lacked
core strength from routine physical exercise or at times, rest days.

Training or competing in the new and popular dog sport flyball was
found to be the riskiest activity of all activities evaluated in the
survey. Agility dogs that also engaged in the sport of flyball were
nearly twice as likely to rupture the ligament as compared to other
dogs. Nearly 12% of dogs reported to play flyball ruptured the ligament.

The survey confirmed some long-standing and well-accepted risk factors
as well.

In particular, female dogs spayed before the age of one were almost
twice as likely to rupture the ligament compared to dogs that were spayed
after their first birthday. Sellon said this is believed to reflect the importance of hormones in developing strong ligaments in young animals.



========================================================================== Trends were also identified among certain breeds.

Survey results indicated Australian shepherds and Labrador retrievers
were more than twice as likely to rupture the ligament. Rottweilers
and Australian cattle dogs were more than four times as likely to tear
the ligament.

Marcellin-Little speculates that could have something to do with the
shape of the dog, and maybe its tail.

"Larger dogs doing agility tend to be less balanced, so it is not
surprising a Rottweiler or Australian Shepherd may be at a higher risk of
a rupture compared to smaller breeds," he said. "The tail could also be
a factor; the tail has been proven very important for cheetahs and you
can imagine it has a role to play in the overall balance of the dog." Marcellin-Little said there is still a great deal of research that needs
to be completed, but the survey gives veterinarians a place to start.

"This research decreases uncertainty; it doesn't bring certainty, but
this one study could provoke thoughts and help us look at potential
research areas to target moving forward," he said. "That is the type
of research that the Agility Dog Health Network is planning to support." ========================================================================== Story Source: Materials provided by Washington_State_University. Original written by Josh Babcock. Note: Content may be edited for style and length.


========================================================================== Journal Reference:
1. Debra C. Sellon, Denis J. Marcellin-Little. Risk factors for cranial
cruciate ligament rupture in dogs participating in canine
agility. BMC Veterinary Research, 2022; 18 (1) DOI:
10.1186/s12917-022-03146-2 ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2022/02/220217090719.htm

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