The Postural and Body Surface Temperature Response of Leisure Horses to Lunging with Selected Lunging Aids.
Authors: Maśko Małgorzata, Sikorska Urszula, Borowska Marta, Zdrojkowski Łukasz, Jasiński Tomasz, Domino Małgorzata
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary: Lunging Aids and Postural-Thermal Responses in Leisure Horses Understanding how different lunging aids affect a horse's biomechanics and metabolic demand remains crucial for evidence-based training, yet quantitative assessment tools have been limited. Researchers used geometric morphometrics and infrared thermography to evaluate thirteen leisure horses lunged under four conditions: freely moving head (FMH), chambon, rubber band side reins, and triangle side reins, with postural changes analysed via principal component analysis and body surface temperature mapped using pixel-counting protocols. Triangle side reins produced the most pronounced thermal response—higher temperatures concentrated over smaller areas—whilst rubber band reins generated moderate-to-high temperatures across broader regions; chambon showed moderate temperatures over restricted zones; and FMH baseline lunging resulted in lower overall temperatures distributed widely (all comparisons p < 0.0001). Notably, postural shape changed significantly with rubber band and triangle reins but not chambon, though overall body size remained constant, suggesting these aids redirect musculoskeletal engagement without simply altering stride length. These non-contact imaging methods offer practitioners an objective framework for assessing whether lunging protocols are achieving intended postural refinement and appropriate metabolic loading—particularly valuable for individualising training intensity and identifying potential overload before clinical signs emerge.
Read the full abstract on PubMed
Practical Takeaways
- •Use infrared thermography and postural analysis to objectively compare lunging aid effectiveness rather than relying on visual assessment alone
- •Triangle side reins and rubber bands induce greater postural engagement and localized metabolic activity; chambon produces minimal postural change despite lunging activity
- •Freely moving head lunging distributes metabolic load more evenly across the body surface, which may be preferable for fitness work or horses requiring careful conditioning
Key Findings
- •Postural changes (centroid shape, p < 0.0001) occurred with rubber band and triangle side reins but not chambon during lunging
- •Triangle side reins produced higher surface temperatures over smaller regions, while freely moving head lunging resulted in lower temperatures over larger surfaces
- •Geometric morphometrics and infrared thermography can quantify lunging efficiency through changes in posture and metabolic activity indicators
- •Different lunging aids produce distinct thermoregulatory and postural responses, suggesting varying metabolic demands