One of my favourite things about working events has to be the people I meet. Owners, trainers, product reps, sponsors, photographers, artists, vets...just about every category you can think of and a few you probably can't.
|
Wendy shows off her display space in the indoor arena. |
At Southern Eighths, I had the distinct pleasure of meeting Wendy McCaughan, a designer from Ireland who decided to take equestrian safety into her own hands by creating
KanTeq and manufacturing custom fit body protectors. The business model is very similar to that of my beloved Rodney Powell, but I learned, and Wendy confirmed, that he has gone out of business, gasp, sadness! I have a body that is all kinds of odd shapes, so a made-to-form vest which has been certified is something I cling to with desperate hands. All foams have a lifespan though (and it's not 20 years, sorry, my friends), as I have learned from several materials and textiles engineers, so what to do when I must replace my sturdy RP?
Wendy had come to the US in late April to display her product at Rolex and we were lucky enough to have her stay over to the next weekend to visit South Carolina and provide some demos and information on falls and energy and how to think about protecting yourself as you inevitably hurl yourself from your steed. As we do.
I've
talked about my vest before and my basic thoughts on the types of protection available to us at this time. Too bad we don't have knee protectors.
|
I apparently lack Irish style genes, but it doesn't stop me! |
Wendy was kind enough to share with me, though, a lovely article that she had put together on energy management, with the help of the testers and engineers who examined the shock absorption properties of her vest (yes -- they tested it and she showed me the graphs of data, eeee, GEEK OUT!). It was such a well-written and concise summary of the topic that I begged her permission to share it with you (if you haven't already seen it in
BHS publications). So without further ado and with a huge thanks to Wendy and KanTeq for not only supporting our long format event but also for just being a wonderful, kind, fun person to chat with and for letting me try on her sweet (blue!),
very comfortable vest, which was both reassuringly solid and notably lighter than my RP, while at the same time giving me complete freedom to move (absolutely KEY in a fall; if you can't move, that impact energy is going to find its own way out = not good) and breathe. That sentence is way too long...
My disclaimer: I have received no incentives to share this product with you and have no stake other than my own safety parameters and intellectual curiosity. I hold, as you know, quite firmly to my self-proclaimed title of Mme. Skeptic and Ms. Analyse-It-To-Death (that one's not so catchy). But I was really impressed by the work and thought that went into this vest and with Wendy herself and her earnest desire to have an open, honest dialogue with riders and to provide them with effective protection, having evented herself on the other side of the ocean.
ENERGY MANAGEMENT – Body Protectors and Air Jackets Explained
Written by Wendy McCaughan
This
article is intended to be a basic but factual and helpful piece for anyone who
is confused by what is on offer in the market – there is no reference to brands
including my own.
My thanks to the Impact
Engineer and Aeronautical Engineer who helped me get the physics right.
Body Protectors and Air Jackets perform in
different ways.
The purpose of a
traditional body protector is to help prevent injury to joints, bones and internal
organs in the event of a riding accident when thrown from a horse or kicked. It
does this by
absorbing and
spreading the forces involved.
To a large extent
body protectors are designed to emulate a ridged shell with spinal conformity
and have the effect of wrapping around the ribcage. They should be impervious
and ideally largely unbending around the circumference of the upper body,
backed up by an impact absorbing and dispersing layer to cushion the blow. Too
much flexion in the shell would allow blunt point impact to bend and possibly
break a bone.
|
I finally got to do a Google Image search for physics!!!!! |
An air jacket is designed
to help provide protection by
decelerating or slowing down the moment of
impact. However, to spread impact loads on the rider’s body, a body
protector must also be worn because the inflated bladder of an air jacket will
not dissipate sufficient energy – instead this energy is transferred from outside to inside, which is why
there is a “bounce,” and must then be absorbed on the inside.
BETA, the FEI, USEF, and BE insist that if you are wearing an air jacket it
must
be worn with a body protector to give sufficient
impact absorption.
Physics of Impact
When falling from
something there is the energy from gravity accelerating the person’s weight
(mass) plus the energy given by the thing they fell off (bike, horse etc). Most
riders are sitting at over 1.4 metres (4’8”) above the ground and may be traveling anywhere from 15-25 mph. That is a
long way to fall, even when the horse is stationary. Once on the ground there
is the added danger of being kicked or trampled - an average horse weighs
1200-1500 lbs, (544 – 680 kg), so the risk to the rider is significant.
Newton’s third law of
motion states: “Every action has an equal and opposite reaction” i.e. push a
ball and it rolls away, the more energy put into the push the further the ball
goes. When landing, this energy has to go somewhere and often the energy goes
into the rider’s body. Therefore the choice of safety garment must be shock
absorbing so that the body inside is protected.
In a horse riding
environment impact types would be:
-Flat impact on ground
with no hard lumps,
-Blunt but point
loaded impact i.e. a rock, tree root, fence post or rail,
-Sharp penetrative impact.
I would say that the first
two and a combination of both are most likely. If when falling from a horse we
hit, for example, a tree root or fence, the energy is transferred into a small
area causing greater damage than if we fall onto flat ground. Therefore it is
vital that the rider chooses the best shock absorbing and energy dispersing
materials as their primary layer of protection (it is all about lessening the
transfer of energy to the body). Body protector foams for use in the equestrian
sector are designed to pass stringent impact tests.
|
Do not want. |
Safety Standards
All body protectors
carrying the EN: 13158 or BETA marked labels have been tested to one of 3
levels and this denotes that at each level the body protector is capable of
absorbing
and spreading a given amount of impact. Protectors meeting BETA Level 3
should provide a level of protection that is considered appropriate for normal
horse riding, competitions and for working with horses. These certified body
protectors also have specific dimensional and space requirements so that
sufficient torso areas are protected.
Air jackets are not body
protectors. Whatever the benefits of wearing these items, currently none of
them meet the relevant European CE standard for body protectors for equestrian
use. To pass the standard protectors must be independently tested by a
European-approved laboratory, using impact performance test methods to simulate
impact due to falls and kicks from horses.