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- Title
Does a placebo effect really occur in dogs afflicted by hip osteoarthritis as measured by force platform gait analysis?
- Authors
Moreau, Maxim; Lussier, Bertrand; Pelletier, Jean-Pierre; Troncy, Eric
- Abstract
A recent study investigated the therapeutic response of dogs afflicted by hip osteoarthritis when evaluating therapeutic modalities compared to a negative (placebo) control group. Authors suggested a placebo effect based on peak vertical force measurement. In addition, small effect size for each of the tested therapeutics as well as the extremely large sample size needed (>450) to discern therapeutic efficacy using force platform gait analysis were reported. We wish to express our concerns regarding the eligibility criteria used to select the studied cohort, the small effect size, and the placebo effect reported in force platform gait analysis.
- Subjects
PLACEBOS; OSTEOARTHRITIS; DOG diseases; GAIT in animals; GAIT disorders; VETERINARY medicine; SAMPLE size (Statistics)
- Publication
BMC Veterinary Research, 2013, Vol 9, Issue 1, p1
- ISSN
1746-6148
- Publication type
Article
- DOI
10.1186/1746-6148-9-260