Tamzin Furtado has graciously provided us with this update on how the Suitable Mounted project has been progressing.
Introduction
While there is agreement that carrying excess loads can result in poor equine welfare, researchers and equestrians disagree on what constitutes a safe upper limit for horse: rider bodyweight (BW) ratios and which other factors (e.g. horse breed, age and fitness, rider skill) might impact weight-carrying capacity. This working group has reviewed the literature and collated rider weight guidelines from different organisations to identify and share current best practice.
Methods
A literature review was performed during June 2023 using Medline/PubMed to identify literature around (BW) ratios and associated factors. Policy documents from different equestrian organisations, riding schools, and clubs in UK were compiled and analysed using a content analysis approach.
Analysis
Research methodologies varied widely: most studies were small-scale, used different horse-related welfare assessments (including biological parameters, physiological responses, gait analysis and behavioural indicators), and utilised different exercise tests and horse breeds. In most studies BW ratios >20% induced negative physiological, gait and behavioural changes, with some finding these changes at BW ratios >15%. In relation to the policy review, many organisations provided a suggested percentage of rider weight (usually 20%), but further guidance on assessing BW ratios or enforcing upper limits was lacking. Examples of good practice were identified, including dynamic assessment of horses over time, noting behavioural and physiological health, a particularly supportive and sensitive approach to discussing the issue, and an approach for assessing riders in a show environment.
Conclusion
While it is difficult to compare studies with varying methodologies, current research supports an upper limit of a BW ratio between 15 and 20%. Although it is rare for organisations to have clear guidelines on managing this issue sensitively in practice, there are examples of good practices that can be shared with organisations that wish to update their policies and practices.
Suitably Mounted is brought to you by – Dee Pollard, Imogen Burrows, Lorna Cameron , Russell MacKechnie-Guire, David Marlin, Ben Mayes, Ali Mead, Jill Perkins, Julian Rishworth, Jan Rogers, Amanda Stoddart-West, Tony Tyler, Bronwen Williams, Jane Williams, Tamzin Furtado
