Greetings!
Does fitness training really reduce the risk of injuries
? Everyone says so, but
what’s the proof
? And if it’s true,
what kind of exercise is most effective
? Strength? Proprioception (body awareness)? Stretching? Let’s take a look at
the evidence
.
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First it is important to note that
published research studies have different levels of validity
. There is an established
hierarchy of evidence
(see figure below), with systematic reviews of randomized placebo-controlled clinical trials (RCTs) providing the
strongest evidence
, and editorials/expert opinion providing the weakest evidence.
Note that Facebook posts don’t even appear in the hierarchy :-).
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The Hierarchy of Evidence
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There have been no systematic reviews of clinical trials that examine the ability of canine fitness programs to reduce the risk of injuries in dogs. But there have been several in humans.
It is valid to examine these human studies and
apply their results to dogs
because the musculoskeletal systems of dogs and humans are very similar, with just a few minor exceptions. In addition,
human studies might even be better
because humans can be given very specific instructions for how to complete strength, proprioception and stretching exercises, thus providing good fidelity to the results of the studies.
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A systematic review
(a study of the validity, bias and consistency of the results of a group of studies)
of the role of strength training in reducing injuries was just published
in August of 2018 (1). It examined 6 RCTs involving 7738 participants to determine whether there is any relationship between strength training and acute and/or overuse injury. The authors determined that these 6 studies had appropriate controls and statistical evidence and revealed no evidence of bias. Reviewing all of the data, the authors concluded that:
- Strength training significantly reduced the risk of acute and overuse injuries by about 66%
- The higher the total volume of exercise, measured by repetitions (reps), the greater the reduction in injury risk
- Working to muscle overload was more effective in reducing injury risk than pre-determining a set number of reps.
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For Active Dogs! Trivia
Can you name a science-based canine fitness program that explains exactly how to work your dogs to overload?
click
here
to find out the answer
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A previous systematic review published in 2014 revealed that
both strength and proprioceptive exercises reduce injury risk
, but stretching does not (2). The finding that proprioceptive exercises reduce the risk of injury was also confirmed by another study (3).
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How does strength/proprioception training reduce injury risk? A brain study was undertaken to address this very question (4). 10 female soccer players underwent fMRI during the preseason. During the soccer season, 2 of the 10 athletes sustained injuries to their anterior cruciate ligaments. The fMRI studies showed that the
athletes that did not get injured had significantly better connections
between the area of the brain where voluntary movement is initiated and the area that is responsible for balance and coordination.
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Bottom Line:
There is strong evidence that
strength and proprioceptive exercises reduce injury
, likely
by strengthening connections between parts of the brain
that control voluntary movement and those that improve balance and coordination.
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References
(Full articles available
here
)
:
1. Lauersen JB, Andersen TE, Andersen LB. Strength training as superior, dose-dependent and safe prevention of acute and overuse sports injuries: a systematic review, qualitative analysis and meta-analysis. Br J Sports Med 2018; Aug. 21.
2. Lauersen JB, Bertelsen DM, Andersen LB. The effectiveness of exercise interventions to prevent sports injuries: a systematic review and meta-analysis of randomized controlled trials. Br J Sports Med 2014;48(11):871-7.
3. Riva D, Bianchi R, Rocca F, Mamo C. Proprioception training and injury prevention in a professional men‘s basketball team: A six-year prospective study. J Strength Cond Res 2016;30(2):461-75
4. Diekfuss JA, Grooms DR, Yuan W, Dudley J, Barber Foss KD, Thomas S, Ellis JD, Schneider DK, Leach J, Bonnette S, Myer GD. Does brain functional connectivity contribute to musculoskeletal injury? A preliminary prospective analysis of a neural biomarker of ACL injury risk. J Sci Med Sport 2018;July 10.
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Upcoming Events:
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