Limb skin thermometry in racehorses.

This study examines the skin temperatures on the limbs of 13 racehorses and presents the normal range of temperature variations. Also, it explains larger variations and the potential outcome, but it does not give explicit conclusions regarding injury detection because of a limited sample size and absence of injuries in the participants.

Overview of the Study

• The research was conducted on 13 racehorses aged between 2 and 5 years. Their skin temperature was measured on their limbs in an attempt to characterise the normal temperature patterns one could expect in such animals.

Findings on Temperature Differences

• The study found that in over 90% of the tested horses, the temperature difference between opposite limbs, otherwise known as contralateral limbs, was less than 1 degree Celsius.
• In the remaining cases, temperature differences of up to 8 degrees Celsius were recorded. This was mainly attributed to excessive cooling of one limb, an anomaly that was observed in a small subset of horses.

Implications for Health and Training

• It was observed that one of the horses showcased a consistent temperature elevation in one of its forelegs. Despite this anomaly, the horse continued to participate in training for seven weeks without showing any visible signs of distress or ill effects. This suggests that small variations in limb temperature did not seriously affect its health status or performance in training.

Limited Scope and Future Directions

• Despite the interesting findings, the study did not draw definitive conclusions about the efficacy of using thermometric screening for the early diagnosis of tendon injuries in horses. The primary reason for this was the small sample size (only 13 horses).
• Additionally, none of the horses in the study had tendon injuries, limiting the study’s ability to make firm conclusions about the connection between temperature variations and such injuries.