University of Veterinary Medicine Vienna - Research portal

Diagrammed Link to Homepage University of Veterinary Medicine, Vienna

Selected Publication:

Type of publication: Journal Article
Type of document: Full Paper

Year: 2009

Authors: Licka, T; Frey, A; Peham, C

Title: Electromyographic activity of the longissimus dorsi muscles in horses when walking on a treadmill.

Source: Vet J. 2009; 180(1):71-76

Authors Vetmeduni Vienna:

Licka Theresia
Peham Christian

Vetmed Research Units
University Equine Clinic, Clinical Unit of Equine Surgery

The pattern of electromyographic activity of the equine long back muscle at the walk has not yet been reported. The aim of this study was to use surface electromyography to measure activity of the longissimus dorsi muscles of horses walking on a treadmill. Fifteen horses without back pain were used and electromyographs were recorded bilaterally from the longissimus dorsi muscles at the level of T12, T16 and L3. Mean electromyograph activity and mean motion were calculated for each horse. At the walk, only one maximum activity for each longissimus dorsi muscle was detected during each motion cycle and this was highest at T12 and lowest at L3. Activity of the longissimus dorsi muscles at the walk is mainly responsible for stabilisation of the vertebral column against dynamic forces. At T12 the high maximum activity could contribute to the development of muscle pain at this site.

Keywords Pubmed: Animals
Biomechanical Phenomena
Exercise Test/veterinary
Motor Activity/physiology*
Muscle, Skeletal/physiology*

© University of Veterinary Medicine ViennaHelp and Downloads