The following symptoms in a horse may indicate dysfunction of the neuromusculoskeletal system:
- Reduced performance
- Abnormal posture
- Snapping and pinning back its ears when being saddled
- Insubordination when being ridden
- The attempt to free itself by throwing its head back or up or by hollowing the back
- Swishing its tail and pinning back its ears
- Disobedience when jumping
- Difficulties with collected or lateral gaits
- Changes in behavior
- Frightened or painful facial expression
- Sensitivity to touch
Joint restrictions in the spine can affect muscle coordination and mobility of the horse, thereby causing decreased performance.
The following symptoms may occur:
- Unleveled gait rhythm
- Irregularity of gait which cannot be assigned to a particular leg or gait
- Stiffness when the horse leaves the stable
- Stiffness when bending and in its general posture
- Muscular atrophy
- Brushing or interfering
- Difficulty engaging the hindquarters
- Difficulty working “long and low”
- Shortened stride in one or more legs
- Overall decreased range of motion in gait
- Difficulty flexing the poll
- Lameness
- Horse pulls against one rein
- Rider is seated off centre due to the horse
- The back does not swing
Your own observations in your horse
Consider your horse’s recent performance and demeanor:
- Has your horse’s behavior or performance changed recently?
- e.g. refusing fences, not taking leads properly, having
more difficulty turning to one side, etc.
- Does unusual or fluctuating lameness exist?
- Does the rider have difficulty sitting straight on the horse?
- Has the rider or trainer noticed changes in the various gaits?
- Does the horse drag its feet or are the shoes worn down on one side?
Examining mobility in your horse
The horse should be able to move freely in all directions without tension, with or without a rider.
- Using a treat if necessary, ask the horse to turn its head and neck to the side so that it touches its flank with its nostrils. Less mobility on one side compared to the other could indicate a problem in the cervical vertebrae.
- Test the lateral movement of the spine by placing one hand on the spine and with the other pull the horse’s tail carefully towards you so that its back bends around your hand.
Is one side stiffer than the other?
- Place slight pressure on the back from above. The back should easily and evenly, spring and swing. It should not feel stiff and hard.