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The traditional method for detecting equine lameness is subjective, using expert visual evaluation of gait to identify the presence or absence and degree of asymmetries. The lame horse is described as having a disorder, defect or loss of function and this clinical diagnosis has associated welfare implications if the horse is still asked to perform.
The article explains how advanced computer technology is starting to change all this. Optic motion capture or the use of inertial measurement units (IMUs) is now enabling the detailed study and quantification of the horse’s gait; objective assessment against preset thresholds. The paper points out that while these digital systems can overcome the temporal and spatial limitations of the human eye they simply rely on one or a number of set gait parameters to decide about lameness and this can present obstacles.
Thresholds are forcibly based on a limited reference population, which doesn’t adequately reflect the millions of horses in the world. The individual environmental and mental conditions for each horse and its day-to-day gait variations are also not accounted for. On this basis to use the term ‘lame’ because a horse demonstrates a subtle gait alteration, causing it to fall below the threshold, could be inappropriate, particularly as it may not affect the horse’s welfare in any way.
Professor Celia Marr, Editor of the Equine Veterinary Journal said: "An important first step is for researchers and clinicians to start to discriminate clearly between 'asymmetry' and 'lameness' and not to use these as interchangeable terms when interpreting gait analysis data. Asymmetry is often, but not always, a hallmark of lameness, but is not a clinical term, whereas lameness is."
Professor Van Weeren said: "Digital equine gait analysis is sure to become an indispensable additional tool for clinical decision-making. At this early stage we must define the use of terminology in order to avoid confusion and to prevent the formation of wrong perceptions. Using the term 'lame' for any horse falling beyond thresholds set for quantitative gait analysis or not showing the ideal motion pattern when assessed clinically is inadvisable. We should reserve the use of that term for horses deemed unfit to compete based on a comprehensive assessment of the animal that includes, but does not rely entirely on, the appreciation of the degree of gait asymmetry."
The paper is available free online at: http://onlinelibrary.wiley.com/doi/10.1111/evj.12715/full
Reference
The Veterinary Record has published new research which shows that one in seven vets is likely to be burnt-out within 10 years of qualifying.
The study was conducted by a team of Dutch researchers led by Nicole Mastenbroek (pictured right) from the Faculty of Veterinary Medicine at Utrecht University.
They noted that veterinary surgeons' psychological wellbeing has been the subject of several studies in different countries in recent years, with some evidence suggesting that male vets are less prone to distress, anxiety, and depression. They wanted to gauge the level of burn-out and engagement with work among vets that had graduated within the past decade, and to assess whether gender or years since graduation are influential factors.
The researchers say they based their approach on the job demands-resources (JD-R) questionnaire, which balances out negative (burn-out) and positive (engagement) aspects of wellbeing associated with work. However, they tailored it specifically for veterinary surgeons, on the grounds that every profession has unique risk factors for burn-out.
The questionnaire was emailed to 1,790 vets who had qualified in The Netherlands between 1999 and 2009, with the final analysis based on the responses of 860, almost three quarters (73%) of whom were women.
Levels of exhaustion and cynicism - both of which are associated with burn-out - were significantly lower than those in a random sample of the Dutch working population. But so too was the level of work engagement.
The responses showed that one in seven respondents (14%) was burnt-out within 10 years of qualifying.
The researchers say that if the criteria for burn-out that are normally used for the Dutch workforce are applied, then the responses would indicate that 27% of the survey respondents were burnt-out.
Women also seemed to reach burn-out faster. Almost one in five (18%) of the female respondents was burnt-out within five years of graduating.
Male vets tended to be less exhausted and more engaged with work than their female peers. Job demands associated with exhaustion were work/home life balance and workload, while job resources linked to engagement included opportunities for professional development and "skills discretion" - the ability to use and develop skills on the job.
Researchers says that behavioural traits explained more of the variance in levels of work engagement between male and female vets than in levels of exhaustion.
Self-belief in one's abilities (self-efficacy) and a proactive stance are linked to work engagement in the JD-R approach. But women vets rated themselves as less effective, optimistic, proactive and assertive than did their male peers.
British Veterinary Association President Robin Hargreaves said: "These findings are worrying but sadly not surprising. We know that a burn out and other manifestations of poor mental wellbeing in veterinary professionals of both sexes are a well-recognised problem in the UK and they are a constant concern to BVA.
"The suggestion of an increased susceptibility to burn out amongst female vets adds to that concern with the increasing proportion of women in the profession."