Development of an equine muscle condition score
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Development of an equine muscle condition score. / Pallesen, Kristine; Gebara, Katia; Hopster-Iversen, Charlotte; Berg, Lise C.
I: Equine Veterinary Education, Bind 35, Nr. 8, 2023, s. e550 - e562.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Development of an equine muscle condition score
AU - Pallesen, Kristine
AU - Gebara, Katia
AU - Hopster-Iversen, Charlotte
AU - Berg, Lise C.
N1 - Publisher Copyright: © 2023 The Authors. Equine Veterinary Education published by John Wiley & Sons Ltd on behalf of EVJ Ltd.
PY - 2023
Y1 - 2023
N2 - Background: Muscle mass influences performance and health in horses. It is important to be able to easily evaluate muscle mass in horses. Objectives: To develop an equine muscle condition score (MCS) to be used by veterinarians, horse owners, trainers and other people involved in horse management and training. Study design: Observational, cross-sectional study. Methods: Twenty-five Thoroughbred horses at different training levels were included. Initial assessment included body condition score, height and bodyweight. Seven muscles (m. splenius, m. brachiocephalicus, m. multifidus, m. longissimus dorsi, m. gluteus medius, m. semitendinosus and m. tensor fascia latae) were imaged using ultrasonography and measured. Repeatability of ultrasonographic measurements was tested in advance by measuring each muscle 10 times in two horses. Muscle sizes were compared between two groups; trained and untrained to determine difference in muscle mass. Horses were subsequently ranked according to measured muscle mass, and palpable and visual differences between horses at different ranks were identified. A 5-point MCS was developed. The MCS was tested by an independent, blinded operator in all 25 horses. Results: Ultrasonographic measurement of all muscles had a coefficient of variation under 5%. All muscle sizes were significantly correlated to each other except for m. brachiocephalicus, which was not correlated to m. semitendinosus and m. multifidus. All muscles were significantly larger in trained horses than in untrained horses except for m. brachiocephalicus and m. splenius. After testing, minor adjustments were made to optimise usability of the score. Main limitations: The study population consisted of very similar horses. Further studies are needed to test the reliability of the MCS in horses of different breeds, disciplines, body condition scores and health. Conclusion: This study resulted in an equine MCS that could identify differences in muscle mass between horses. The resulting MCS was similar to other muscle assessment systems developed independently from our study, thus strengthening the findings.
AB - Background: Muscle mass influences performance and health in horses. It is important to be able to easily evaluate muscle mass in horses. Objectives: To develop an equine muscle condition score (MCS) to be used by veterinarians, horse owners, trainers and other people involved in horse management and training. Study design: Observational, cross-sectional study. Methods: Twenty-five Thoroughbred horses at different training levels were included. Initial assessment included body condition score, height and bodyweight. Seven muscles (m. splenius, m. brachiocephalicus, m. multifidus, m. longissimus dorsi, m. gluteus medius, m. semitendinosus and m. tensor fascia latae) were imaged using ultrasonography and measured. Repeatability of ultrasonographic measurements was tested in advance by measuring each muscle 10 times in two horses. Muscle sizes were compared between two groups; trained and untrained to determine difference in muscle mass. Horses were subsequently ranked according to measured muscle mass, and palpable and visual differences between horses at different ranks were identified. A 5-point MCS was developed. The MCS was tested by an independent, blinded operator in all 25 horses. Results: Ultrasonographic measurement of all muscles had a coefficient of variation under 5%. All muscle sizes were significantly correlated to each other except for m. brachiocephalicus, which was not correlated to m. semitendinosus and m. multifidus. All muscles were significantly larger in trained horses than in untrained horses except for m. brachiocephalicus and m. splenius. After testing, minor adjustments were made to optimise usability of the score. Main limitations: The study population consisted of very similar horses. Further studies are needed to test the reliability of the MCS in horses of different breeds, disciplines, body condition scores and health. Conclusion: This study resulted in an equine MCS that could identify differences in muscle mass between horses. The resulting MCS was similar to other muscle assessment systems developed independently from our study, thus strengthening the findings.
KW - horse
KW - muscle condition score
KW - muscle mass
KW - muscle size
KW - ultrasound
U2 - 10.1111/eve.13777
DO - 10.1111/eve.13777
M3 - Journal article
AN - SCOPUS:85147556004
VL - 35
SP - e550 - e562
JO - Equine Veterinary Education
JF - Equine Veterinary Education
SN - 0957-7734
IS - 8
ER -
ID: 337601555