Take a moment to stand behind and in front of your horse. Do both sides look the same?

While no horse is perfectly symmetrical, noticeable differences in muscle development can indicate that one side of the body is working harder than the other. You may notice:

A fuller shoulder on one side.
One hindquarter appearing more developed.
Uneven topline muscles.
One side of the neck looking larger or tighter.

These changes often develop gradually, making them easy to miss when you see your horse every day.

Not all discomfort presents as lameness. Sometimes, behaviour changes are the first clue that something has altered.

Your horse may become:

More reluctant to be groomed in certain areas.
Difficult to tack up.
Less willing to stand for mounting.
Grumpy when asked to work.
More reactive than usual.

Behaviour is communication. Rather than assuming your horse is being naughty or stubborn, consider whether they may be trying to tell you something.

Compensatory movement patterns can be surprisingly subtle.

Watch your horse walking and trotting in a straight line.

Look for changes such as:

Shorter strides.
Reduced overtrack.
Reluctance to step underneath with a hind leg.
Difficulty bending equally in both directions.
Uneven transitions.
A preference for one canter lead.

These changes may not be consistent and can become more noticeable during certain exercises or after harder work.

Has your horse suddenly started struggling with movements they previously found easy?

Perhaps they:

Find lateral work more difficult.
Knock poles they would usually clear comfortably.
Lose balance more easily.
Find hill work harder.
Tire more quickly than expected.

Performance changes are often one of the earliest indicators that something within the musculoskeletal system has changed.

A horse's posture provides valuable information about how they are using their body.

Look for:

Standing with one hind leg consistently camped underneath or out behind.
Resting the same leg repeatedly.
Holding the head or neck slightly to one side.
Weight shifting when standing.
An uneven stance.

While horses naturally rest individual limbs, consistently adopting the same posture may indicate they are unloading an area of discomfort.

Compensation doesn't tell us exactly where the problem is.

A restriction in one area may create changes elsewhere as the horse redistributes weight and alters movement. The area showing the greatest muscle tension isn't always the source of the issue, which is why a thorough assessment is so important.

Many factors can contribute to compensatory movement, including:

Saddle or bridle fit.
Hoof balance.
Training intensity.
Previous injury.
Dental health.
Rider influence.
Underlying veterinary conditions.
Muscular fatigue.

Understanding how these factors interact allows a more complete picture of your horse's health and performance.

You don't need to be a therapist to become better at recognising changes in your horse.

Spend time watching them in the stable, field and under saddle. Notice how they stand, move and behave from week to week. Small changes are often the first clues that something may need investigating.

The earlier changes are recognised, the sooner appropriate advice can be sought, helping to prevent minor compensations developing into more significant problems.