American journal of veterinary research · 2026
Feasibility of a hand-held myotonometry device for measuring biomechanical muscle parameters in horses.
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Ribeiro Gesiane, Agrícola Ricardo, Sanchez Maria Margarida Formosinho, Ramos Filipe R, Borges João, Abrantes João, Prazeres José
Аннотация
OBJECTIVE: To evaluate the feasibility of a hand-held myotometry device for measuring the biomechanical parameters (frequency, stiffness, and decrement) of the longissimus dorsi muscle in the thoracolumbar region of healthy horses.
METHODS: Data were obtained from 50 adult horses. The biomechanical parameters were measured using a MyotonPRO device in triple-scan mode. Measurements were recorded on both sides, with the horses standing square. The analysis focused on whether there were differences between the sides and correlations between the variables.
RESULTS: The mean muscle frequency (hertz) was 21.66 ± 2.88 on the left side and 21.45 ± 2.75 on the right side. The mean stiffness (N/m) was 535.94 ± 82.87 on the left side and 525.41 ± 75.15 on the right side. The mean decrement on the left was 1.68 ± 0.34, and the mean decrement on the right was 1.71 ± 0.26. There were no significant differences between the sides for any parameter, indicating symmetry between them. On the left side, correlations were found between biomechanical parameters and age and body score.
CONCLUSIONS: The MyotonPRO device is a tool that can be used to measure muscle tone, stiffness, and decrement in horses.
CLINICAL RELEVANCE: Validating a portable tool for measuring biomechanical parameters can make muscle assessment in horses more objective and contribute to diagnosis as well as injury prevention and recovery monitoring.
METHODS: Data were obtained from 50 adult horses. The biomechanical parameters were measured using a MyotonPRO device in triple-scan mode. Measurements were recorded on both sides, with the horses standing square. The analysis focused on whether there were differences between the sides and correlations between the variables.
RESULTS: The mean muscle frequency (hertz) was 21.66 ± 2.88 on the left side and 21.45 ± 2.75 on the right side. The mean stiffness (N/m) was 535.94 ± 82.87 on the left side and 525.41 ± 75.15 on the right side. The mean decrement on the left was 1.68 ± 0.34, and the mean decrement on the right was 1.71 ± 0.26. There were no significant differences between the sides for any parameter, indicating symmetry between them. On the left side, correlations were found between biomechanical parameters and age and body score.
CONCLUSIONS: The MyotonPRO device is a tool that can be used to measure muscle tone, stiffness, and decrement in horses.
CLINICAL RELEVANCE: Validating a portable tool for measuring biomechanical parameters can make muscle assessment in horses more objective and contribute to diagnosis as well as injury prevention and recovery monitoring.