Lesson Three
I. Equine Gaits and Movement Patterns
II. Common Stresses and Injuries
III. Recognizing Discomfort in Horses
in Motion
I.
EQUINE GAITS
Lesson
two described the horse’s skeletal and muscular anatomy, emphasizing how the muscles
work to move the bones. Now, we’re going to focus on the specific movement
patterns.
When
evaluating a horse’s movement, it is important to know the correct sequence of
foot falls in the different gaits. This
allows us to assess the extent of the deviation from normal and therefore, the
extent of a problem. The greater the
deviation away from normal correct movement, the greater the problem and the
less satisfying the horse’s performance - ranging from not quite up to standard
to actual unsoundness that may require a veterinary exam.
Horse’s movement patterns fall into two basic
categories—trotting horses and gaited horses.
Let’s start with horses that walk, trot and canter.
The Walk
The
walk is a four beat gait in which the
horse moves one foot at a time, so there are always three feet on the ground
at any time. This makes the walk a
smooth, even gait that is easy and comfortable to ride.
The
hind legs swing from the hip joint with no, or very little, lowering of the
pelvis as the hind legs come forward.
There is a rhythmic downward nod of the head and neck that is in time
with the footfall. Any upward swing of
the head, rather than downward, indicates stiffness in the horse’s back and
forehand.
All
of a horse’s movement initiates in the hindquarters. The natural walk starts with a push from the
hindquarters. The horse begins moving
his mass forward by driving off a hind foot.
As the horse loses his balance, a front foot moves forward to catch and
rebalance the horse. Even though the
action has started in the hindquarters, it appears the front foot moves
first—this is because it must move out of the way of the forward moving hind
foot which will over stride the front foot print if the horse is without pain
or stiffness. The sequence of strides is
actually, right hind, right fore, left hind, left fore. A hind leg begins the sequence with a
driving movement even though it appears that the fore leg is the first to move.
Ideally
the speed with which each leg comes forward and the length of the stride of
each should be the same for all four legs.
If this is true there will be a regular four-beat rhythm.
Many
times this is not the case, and there will be variation in the timing of the beats. A good way to initially sense this is to
listen to the horse walk on pavement or bricks and you will hear the rhythm
variation and irregularities clearly.
Sometimes
the front legs will take longer strides than the hinds, or vice versa. Another common sequence is one in which the
horse takes even strides with three legs and a short stride with a single leg.
An
all too common irregularity that we see is the one in which the two legs on one
side stride forward at the same time.
This is called a “pace” (two beat lateral gait) and it gives an
uncomfortable lurching motion to the walk.
The foot fall pattern of the pace would be the left fore and left hind
coming forward together and then the right fore and right hind coming forward
together. Camels pace at the walk and
Standardbreds trot or pace very rapidly as they pull sulkies in races.
The
human movement pattern that is the equivalent of the horse’s walk is our
crawl. As a baby crawls, it moves its
arms and legs in the same sequence as the horse’s walk. Get down on the ground and experiment with
crawling. Try variations, especially the
pace; see which is the most comfortable.
The
Trot
The
trot is a two beat gait in which a
diagonal pair of legs (hind leg on one side, fore leg on the other) comes
forward at the same time for the first beat and then the other diagonal pair
comes forward for the second beat.
In between these two steps there is a moment when all four legs are off
the ground at the same time. This is
called “the moment of suspension” and it is a crucial phase in the trot
sequence. Any interference with the
moment of suspension will be indicative of irregularities in the trot.
Again,
as in the walk, the ideal is to have the length of stride, the time interval
and the speed of both pairs equal. This
produces a fluid, cadenced trot of complete regularity. Deviations from this will vary from slight to
severe.
Slight might be that the legs of a
diagonal pair do not leave the ground or land at quite the same moment. A horse that carries its body in an
asymmetrical configuration (crooked) will often show this type of deviation.
Severe
would be when a leg does not complete its forward stride, but puts the foot
down out of time with its diagonal partner.
This could happen when a horse is very sore in a limb or there is a
clinical unsoundness.
The
human equivalent of the trot is our walking and running.
Notice
as you walk or run, that as the leg on one side comes forward the arm on the
opposite side swings forward at the same time.
Try other patterns. Swing the arm
and leg on the same side together.
Tighten up your arm swing and see if that affects your body as you walk.
The
Canter
The
canter is a three beat gait with a
moment of suspension, (all four feet off the ground) after the third beat.
For
the first beat of the canter one of the diagonal pairs of the trot is broken up
and the horse will push off with the hind leg of that diagonal without moving
the front leg. The other diagonal pair
will come down together (just as they do in the trot), and then the fore leg of
the first pair will finally move forward (this is what we call the leading
leg). There is a moment of suspension
when all four feet are off the ground. I
think of it as if the horse vaults from a hind leg to the opposite fore leg and
puts the other two legs (the other diagonal pair) down together to support its
body in the middle of the vaulting stride.
The
most common irregularity in the canter is what is called a “four-beat
canter”. When this occurs, the legs of
the diagonal pair that should land together as the second beat (the one that
supports the middle of the vault) do not land at the same time. The foreleg of this pair touches down before
the hind leg, giving the canter four beats instead of three and there is no
moment of suspension. This restricts the
movement in the horses back to a tight “lurching” feeling under the rider’s
seat.
Another
incorrect variation of the canter would be one in which the canter is slowed
down to such a degree the horse uses a canter sequence in the front legs and a
trot sequence in the hind legs.
If
you have ever watched children skipping or playing “horsey” you will see they
use the same foot sequence as the horse’s canter. And, if you watch carefully, you will see
that one of their arms will actually move in a slight forward/back motion just
like a horse’s leading leg.
Gaited
Horses
In
your massage work you may be called upon to work on gaited horses.
Gaited
horses have a normal walk and
(sometimes) canter sequence, but there is no trot.
The
thing that the different gaits have in common is that the horse always has at
least one foot on the ground. There is
never a moment when all four feet are off the ground - therefore the gaits
cannot be variations of the trot. The
trot, by definition, has a moment of suspension.
The
gaited horse actually walks when it is “gaiting.” Even the Missouri Fox trotter walks rather
than trots.
The
fast walk (a “single-footer walks so fast that at times he only has a single
foot on the ground) gives a smoother, softer gait that is usually very
comfortable for the rider.
Almost
all of these “gaits” are the product of training rather than in-born. The major exception that I know of is the
Paso Fino. They have a walk and a
canter, but no trot or variation of the trot (they can be taught to trot, but
this, then, would be a learned gait). All of the Paso Fino’s gaits are the
four-beat walk pattern done at different speeds.
Some
horses, like the five-gaited Saddlebred, will have the three natural gaits plus
two man-made ones.
The
important thing to understand when evaluating a gaited horse’s movement is that
the “gait” may not give you a good idea of what is going on in their bodies,
but the walk and canter should give good information.
When
we do the lesson that includes evaluating a horse’s movement prior to doing a
massage, I will go into greater detail about the things you should be looking
for in the gaits that indicate a problem and where it might be originating.
II.
COMMON STRESSES
The
first part of this lesson has described the natural gaits and movement patterns
of a horse, but these can be disrupted by outside factors. Injuries are one of these factors, but even
more frequent, and important, are muscle strains and soreness that can be
caused by the type of work we ask of horses.
In any given riding discipline there are certain stresses and injuries
that will be fairly common for that particular discipline or sport. These problems will usually center around a specific area of the horse such as the forehand and
front legs, hocks and hindquarters.
These
are some of the common problems encountered in our more popular forms of
riding:
• Excessive pressure or
concussion to the forehand.
• Excessive pressure on
back muscles.
• Excessive pressure or
concussion to the hindquarters.
• Co-contraction
problems.
• Stress from riding and
training styles that emphasize forms of balance and movement that deviate from
the anatomical norm.
• Outside trauma
(accidents, falls)
The
majority of problems in a particular riding sport or activity will usually
involve one of the above categories, but some may show a pattern of multiple categories. Some of the problems that occur will be of a
nature that requires veterinary care and the massage work will need to wait
until the injury has healed and rehabilitation has started. Many problems will
simply involve muscle tensions and soreness that results in a general
deterioration of performance and a loss of free motion and flexibility—these
are readily responsive to massage.
Excessive Pressure or Concussion to the
Forehand
Race
horses - Injuries to race horses are centered, to a large extent,
in the lower front legs and are usually of a nature that requires veterinary
attention, but along with the lower leg injuries there will be soreness and
cramping in the shoulders, withers and back muscles. A regular maintenance massage schedule can
help alleviate much of the muscle soreness that is inherent in the intense training
schedule of a racehorse. (Many of the
problems seen in the forehand actually originate in the hindquarters—so never
dismiss the possibilities without thorough investigation.)
Show-ring
hunters - Injuries to these horses, because they jump, will most
often be the result of concussion to the front legs and shoulders when landing
after a jump. These horses are usually
confined in a “frame”, both on the flat and over jumps, that limits any
variation of stride. This can eventually
result in muscles losing
flexibility from being confined only within the range allowed by the striding
between jumps. This confined striding
can also affect hock movement and many jumpers will have had injections for sore
hocks. Another factor that often
contributes to the show-ring jumper’s soreness and muscle problems is the use
of a short standing martingale that inhibits the horse’s full use of its body
over the jumps.
Jumpers
- Landing from the heights of the jumps taken by jumpers can cause soreness to
the forehand and front legs. They can
also suffer from stress and soreness to the hind legs from the tremendous
thrust they have to exert to push their bodies up and over the jumps, and
many, like the show ring hunters, will have had their hocks injected. When you add to these stresses the quick
adjustments and movements required to be done at speed around a course this can
cause over-all tension and body soreness.
Western
Pleasure horses - In the western pleasure jog the
forehand tends to “brake” the horse’s speed. The shortening, in many cases the extreme
shortening, of the stride to achieve the western pleasure jog puts great
pressure on a horse’s front legs, and is intensified when the horse is also asked
to keep its head very low. The hindquarters also suffer in this
slow, heavy gait. The hind legs work
primarily in an up/down motion (very little forward/back swing) that restricts
the full range of motion in the hip joints.
Another common problem occurs when a rider, in trying to achieve a very
slow jog and lope, actually break up the gaits.
The most common of these gait abnormalities is the four-beat lope, but
other, more serious ones are when the horse jogs with the front legs and is
walking with the hind legs and at the lope the horse lopes with the front legs
and jogs with the hind legs. This
break-up of the correct biomechanics of the jog and lope can cause stiffness
and muscle soreness, co-contraction and even unsoundness.
Excessive Pressure to Back Muscles
It
could be said that all forms of riding puts pressure on a horse’s back simply
because the rider sits on this bridge between the two ends of the horse. But most riders are able to harmonize with
the movement of the horse’s back muscles in such a way that both horse and
rider can be comfortable. The kind of
riding that I’ll be describing here as excessive pressure to the back muscles
is that which interferes with the free contraction and extension of these
muscles.
Distance
horses (Endurance and Competitive Trail) - The distances
involved (up to 100 miles) and the use of the trot for long periods of time
combined with the long, extended frame usually seen in these horses can tighten
the entire torso in an extended state with the abdominal muscles unable to
contract properly. When this happens,
the hind legs cannot swing up under the horse’s body to a position that gives
support to the torso. The back muscles
then have to stiffen excessively in order to carry the rider’s weight without
help from the hind legs. Sore back
muscles are common in these horses.
Also, many distance riders stand and brace in their stirrups in order to
avoid having to deal with the horse’s movement in the long extended trot. This constant, heavy pressure at the front of
the saddle can produce additional soreness in the wither
and low back area.
Saddle
Seat (Park Pleasure, English Pleasure) - This style of riding affects a
horse’s back in much the same way as distance riding in that the back muscles
have to stiffen because the hind legs are not able to travel far enough up
under the torso to provide support. In addition, the high position of the neck
will also contribute to the stiffening of the back, causing upper shoulder
tension as well as back problems. And
the long, weighted feet that is the norm for this riding style puts even
greater stress on the shoulders and back.
It is rare to see a horse that is ridden in this style that is not
significantly sway-backed by the time it is over 12 years of age; this is not
the norm for other riding styles.
Dressage
- In dressage many riders lean back behind the vertical and use a heavy driving
seat to drive the horse forward. This is
very hard on the horse’s back and can cause sore back muscles. This type of rider will continue to use this
heavy driving seat in a mistaken effort to obtain collection. Collection compresses the horse’s
length from nose to tail and transfer more of its weight onto the
hindquarters. The correct anatomical way
to do this is to have the abdominal muscles contract and lift and lengthen the
long back muscles. In the collection
process it is crucial that the long back muscles elevate. In their attempts to collect a horse many
riders use the heavy, driving seat that will actually depress the horse’s long
back muscles. The nose and tail will
come closer together in this type of attempt to collect, but done in this way
it becomes difficult for the horse’s hind legs to come up under its torso. There will not be a weight transfer to the
hindquarters and control ends up being done by the rider’s hands. All of these factors can produce sore or weak
backs, tension and stress in the shoulders and muscle strain in the loins and
upper areas of the hindquarters. If collection
has been done correctly and there is a correct transfer of weight to the
hindquarters, it is the hindquarters and hind legs that are more likely to
experience muscle strain and soreness.
Race
Horses - The tremendous stretch of the back muscles in the racing
gallop puts great strain on them, especially in the loin area. Sore backs are common in racehorses.
Excessive Pressure and Concussion to
the Hindquarters
There
are some riding disciplines whose ultimate aim is to transfer more of the
horse’s weight to the hindquarters.
Since this is not normal for the horse in its natural state, except in
moments of great excitement, doing this as a deliberate training aim can put
great stress in that area, especially to the joints of the hind legs.
Even
when done carefully and correctly there is a good possibility of stress to the
hind leg joints. The joints that are
particularly susceptible to injury are the hocks and fetlocks. Some of the riding disciplines where this
occurs are reining, cutting and dressage.
Driving
horses, particularly draft horses, will often develop soreness or movement
problems in their loins and hindquarters because of the way they use their
bodies when pulling weight.
Riding
horses have to support the weight of a rider on their backs; they can do this
best when their hind legs swing under the torso, thereby offering support to
their backs and a rider.
Driving
horses, when pulling weight, use their hind legs from a perpendicular position
to behind their bodies. In this type of
movement the horse stiffens its back and puts stress on its loins and
hindquarters. Hindquarter soreness and
hock problems are common. Because of
shoeing procedures that enable most driving horses to have more lift than
extension in their front legs, they may also be prone to soreness in the
shoulders.
Co-contraction Patterns
The
automatic response of one muscle lengthening as its counterpart contracts can
be deliberately over-ridden under some circumstances and a muscle will stay in partial
contraction even as it’s opposite attempts to
contract. This puts strain on the
muscles attempting to contract.
If
this process of only partial release continues, muscles will gradually tighten
into a smaller range of motion and lose much of their ability to stretch. This process is called co-contraction. This tightening will build muscle strength,
but it does so at the expense of mobility and free movement as well as causing
constrictions around joints that, if left without release, can eventually lead
to joint deterioration (arthritis) and unsoundness.
Any
type of training that emphasizes a particular form or “look” rather than free,
flexible movement is a prime source for development of co-contractions. It can be seen often in dressage, western
pleasure and show-ring hunters, but can also occur in any area where freedom of
motion is sacrificed for static, repetitive movements.
Even
the technique of “head setting” and overly tight side reins can produce
co-contractions.
It
is important that horses ridden in ways that produce harmful co-contractions
have some way to release this tension periodically before it can cause
soreness, or unsoundness.
Deliberate Deviations from Anatomical
Balance and Correct Movement Patterns
Some
riding styles train horses in ways that deliberately seeks to achieve a certain
“look”, posture or movement the deviates from correct biomechanics and
posture. This puts abnormal stress on
parts of the horse’s body that are not capable of supporting what is being
asked.
Horses
trained in this way can be effective at what they do, but are limited by these
abnormal patterns, and as they age the imbalances will begin to adversely
affect their muscles and movement. The
horses in this category differ from those I discussed under Co-contractions in
that the problems these horses will experience are not just side effects of
poor training methods, but are deliberate attempts to produce a look that is
totally our of sync with the correct bio-mechanics of any horse.
Some of these training styles are
described below:
“Parking out” - a part of saddle
seat training which takes both the horse’s front and hind legs away from their
support positions. The back muscles have
to try to do the whole job of support.
Horses
with man-made gaits will experience problems related to the break-up of the
natural trot. In the training of
five-gaited Saddlebreds, the sequence of footfall of the trot is deliberately
broken up to produce the rack and slow gait.
Other types of gaited horses also have altered trot patterns that can
produce stress in their bodies.
Halter
horses that are taught to park out behind, particularly Arabians, often suffer
from weakness in some of the joints of the hind legs, especially the stifle
joints. From a very early age the
muscles that are necessary for pulling the hind legs
forward are under-developed and the muscles that pull the hind legs back are
tight and overly contracted and do not stretch forward easily. This parked-out posture also puts excessive
stress on the horse’s loins.
Deliberately
slowing down the western pleasure gaits until they lose their correct footfall
patterns is another example of deliberate training that disrupts the gaits
rather then enhancing them.
These
training techniques all put excessive tension on the horse’s body and massage
can be beneficial.
When
doing massage on these types of horses you must be aware that your job is to
loosen the muscle strain inherent is the training, but you’re not going to
bring these horses into a different posture or balance while still in training.
Massage
done on these horses on a regular basis will help maintain the level of
performance desired by the rider and still keep the horse as comfortable as
possible.
Outside Trauma
Any
horse, in any discipline, can hurt itself in performance, but some disciplines
run a higher risk than others.
Most of these involve speed, quick movements and obstacles. Horses likely to fall into this category
would be event horses, jumpers, games horses, field hunters, steeplechasers and
point-to-point horses.
Many
of these injuries will require veterinary care, but just as many will result in
muscle soreness, strains and pulls that can be helped by massage.
III.
RECOGNIZING DISCOMFORT IN HORSES IN MOTION
As
you start looking at horses with the information you have been given, it is
also time to begin to look at more than just the mechanics of gaits.
Start
looking at what kinds of work the horses do, what kinds of training techniques
are used, how the horses use their bodies and how their bodies look.
Are
movements stiff and stilted or fluid and supple? Does the horse look angry and unhappy?
Does
it just “plod along” without interest or eagerness, or does it look interested
in its work and content to be working with its rider.
Negative
answers to these questions are all indications that something is wrong.
A
horse that is unhappy, uncomfortable or hurting in its body will show its
discontent in a variety of ways and it is important for you to be able to
recognize behavior that indicates a problem. Horses are amazingly willing to do
the myriad of things we ask them and the root of most problems involving
unwillingness is usually pain or discomfort that we may not even be able to see
or feel and or mistrust due to us not listening.
Some
problems will be physical and some will be mental, and often it is a
combination of both.
Watch
the horse’s eyes, ears, mouth and tail. All these are good indicators of
discomfort. Are the eyes soft and
relaxed or wide, frightened and angry looking?
Are the ears pinned flat back against the skull or up and moving around
interested in the surroundings? Does the
horse grind its teeth or play incessantly with the bit or is the mouth soft and
relaxed? Is the tail wringing like mad
or is it in a nice soft arc behind the horse swishing softly?
ASSIGNMENTS
1. I want you to go out and watch as many
horses as you can. Watch them free in the
pasture, watch them under saddle, watch them lungeing. Can you identify the different gaits you
see? Look for the footfall patterns that
were described in this lesson - were they easily identifiable, or did you
notice variations or abnormal gaits? Try
to figure out why some horses look different even when they’re doing the same
movements. Write a report on your
thoughts and observation.
2. Talk to numerous owners about their
horses. Find out what they like about
their horses and what they might like to improve. Find out what kind of riding they do and any
injuries or problems their horses have.
Can you equate any of these problems with the kind of work these horses
do, as was described in the lesson? Give
me short, general overview of some of these horses and any problems you
see. Please do not discuss your thoughts
with the clients as yet as this would be inappropriate at this point of your
learning. It is ok to let them know that you are in a training program for
massage and just gathering information at this point for some homework. Often they will offer their horses up for
your field work at the end of the course.
3. Pick out three specific horses doing
three different types of riding or work and describe in greater detail the kind
of work these horses do and how they seem to be using their bodies. Particularly notice the footfall patterns in
the walk, trot and canter (walk, canter and “gait” in gaited horses). Are these gaits true, or did you see any of
the variations I described? Ask questions
about how these horses are trained and describe any injuries or problems these
horses have had. Notice these horse’s
dispositions. Do they appear calm and
willing or agitated and defensive? How
does the owner describe their horse’s work ethic and attitude?
4. In lesson 2 you learned how similar
human and horse gait and movement patterns are.
As you progress through this course you will learn the importance of
being able to identify where a horse’s body problems are coming from and how
these problems cause discomfort or pain and affect movement. One of your most important tools for doing
this is to be able to duplicate with your own body the way a horse is holding
its body and the way it feels when it moves its body. In this exercise I want you to duplicate the
horse’s three gaits with your own body.
Notice how your body feels and how it organizes itself. Try some of the variations and gait
abnormalities described in this lesson and notice what kinds of changes you
feel in your body. Duplicating the
horse’s trot (our walk and running) is best done standing up, but the horse’s
walk (our crawl) needs to be done on all four’s. Practice the canter (skipping) standing up,
but also experiment with the organization of your body for the canter and the
foot sequence on all fours. Some things
to notice as you do these exercises are: (a) in your walking and running,
notice how the leg and diagonal arm move forward together – try moving the arm
and leg on the same side at the same time, try tightening your arms as you walk
and run: (b) when starting your crawl, which limb seems to want to start the
movement, experiment with different sequences of moving your limbs in the
crawl; (c) when skipping to duplicate the canter notice if your “leading arm”
moves slightly in front of your other arm, practice canter departs and notice
what your legs do in the departs, practice “flying changes”. When you’re on all fours feeling the
organization of your body in the canter sequence, can you feel the diagonal
stretch in your body from your shoulder to the opposite hip as your “leading
leg” (the third beat of the canter) is put forward? Get your friends or children involved in this
exercise – watch how they walk, trot and canter and have fun while you are
learning this piece. Get their feedback
and thoughts. Write a report on how
these exercises may have influenced your understanding of a horse’s movement
patterns.
5. It is the similarities in the movement
patterns of horses and humans that allow us to harmonize with a horse’s body
positions and movements and makes riding comfortable for both the horse and the
rider. Because of this close similarity
in movement patterns, it is also possible for a rider’s incorrect body
mechanics to have a profound influence on how a horse uses its body under
saddle and the movement problems and soreness that can develop in the horse
from incorrect riding and lack of harmony with the horse’s movement. This is a good time to begin to be aware of
how riders organize and use their bodies.
Watch them (discretely) as they walk and move around on their
horse. Share with me some of your
observations and thoughts on this.
Send
your detailed report to: pegasus.simat@gmail.com