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Steve Cockerill discuses some of the typical problems
associated with hiking out and takes advice from Fiona Taylor,
a physiotherapist who has often been found in dark corners of
Sailing Clubs at Laser 4000 regattas, with strange men and
women complaining of aches and pains.
The main area of concern for us is our knee; bad knee pain
affects most of us throughout our sailing careers and can
often be the reason for changing to more pedestrian classes
sooner than we would like.
In the majority of cases the source of knee pain is from
behind/under the kneecap (patella). This joint is particularly
vulnerable in sailors because of the loads placed on the joint
in the hiking position and the joint shape that relies on
specific muscle activity.
I have seen many young sailors using bad and ineffective
hiking styles that will, if not corrected, store up problems
for them in later life. I am afraid it is a subject that if we
do not take seriously can lead to bar talk like ‘I could not
carry on sailing a single-hander, ‘cause my knees gave out’.
Having had an aggravating knee problem myself, I have been
keen to write this article for some time to ensure that we all
develop good, healthy and effective hiking styles and enjoy
this physical aspect of our sport for many years to come.
Fortunately for me, I have changed my techniques, which have
in turn helped repair my knee, and as a bonus improved my
speed.
I was diagnosed with chrondromalica patella some 10 years
ago. This condition is common amongst all types of athletes.
It basically means that I had an imbalance in the mussel
groups around the knee that in my case was caused by a bad
hiking style. This bad style caused the muscles to develop in
an unbalanced way which caused the knee cap to move out of
track and become inflamed and very painful. When I got tired I
had a natural leaning forward style which involved rotating my
aft foot forward and using the stronger and more stamina
resistant outer quadriceps to maintain the hiking position.
Obviously when we exercise we are going to develop our
muscles, but bad exercises can allow the outer quad to quickly
become the dominant muscle and allow it to pull the kneecap to
the lateral or outer side. The critical aspect of the muscles
around the knee cap is their balance around the joint. The key
muscle in the balance and stability of the knee and yet the
hardest to develop and maintain is the inner quadriceps. This
muscle requires much harder work to develop and maintain but
it ensures the balance between the large small angled pull of
the outer quadriceps and the small large angled pull of the
inner quadriceps.
In serious
cases the only cause of action is to purposefully damage the
lateral muscle (lateral release) in order for the other
muscles to regain the upper hand in the control of the
kneecap. The other alternatives are to take rest and
anti-inflammatory drugs, which make the pain go away but
leaves the knee prone to further damage, or exercise in
specific ways to encourage the inner quad to develop and re
introduce the balance around the knee cap. Thankfully my case
was not too bad, so specific exercises was the key. I spent 6
months with a piece of elastic looped over the end of my foot
and around a table leg. I had to pull my right foot against
the elastic toward my left foot, with a twisting motion. It
caused a few strange looks from my work mates but this
re-educated my inner quadriceps to take control! When sailing,
I had to concentrate to keep my feet pointing outwards, making
the inner quad do more of the straight leg control. This was
not easy! When riding my bike for exercise, I ensured my
saddle hight was high enough to allow for the almost
straightening of my leg at the bottom of each revolution. Not
the traditional – can you place your feet on the floor? I
avoided the deep squats when weight training in favour of
almost straight leg quad exercises. Deep squats and bent leg
cycling encourage the development of the outer over dominant
quad – not what was required…
The amazing thing about the correct hiking position is that
it is good for knees. Straight leg hiking provides minimal
pressure on the kneecap and encourages a balanced use and
development of both the inner, outer and middle quadriceps.
Steve straight legging on his drive
Bent leg hiking causes large pressure on the kneecap
i.e. Research has shown that when the knee is fully straight
the load placed on the patella is minimal. However if the
knee is bent 30 degrees twice the body weight is exerted on
the joint and at 60 degrees the load exceeds ten times the
body weight.
Information taken from Fiona Taylor’s degree project
(probably better known as Fiona Bullmore to many Cadet, 420,
Europe and Laser 4000 sailors)
Bent knee hiking encourages the over development of the
larger outer quadriceps – which in turn leads to its over
dominance and our friend chrondramalesia platella or bad
tracking of the platella taking hold. Bent knee hiking also
has a tendency to encourage the side hiking styles that
continues to aggravate the problem. In addition, bent leg
hiking causes more pressure on the foot, which takes not
only the weight of the sailor but the lever effect of the
bum drooping style.
Hanging on with the toes drops the bum!
I would hate to consider the added pressure on the foot
joint with bent knee hiking – perhaps this could be the
subject of some future research.
Many significant changes in hiking style has occurred in
the laser class over the last 5 years. One of the most
significant changes being introduced by Nik Burfoot, (ex
world Laser Champion from New Zealand). I saw Nik pointing
his toes with very tight toe straps in his Laser at a
Regatta in 1994.
Under questioning, his explanation was ‘if the leg is
straight then there is no need to hold the toe up to grip
the boat. In fact holding the foot up only makes the
hamstrings work against the quadriceps, which are trying to
keep the leg straight.’ …It sounded feasible so I tried it
for myself and progressively shortened my toe-straps to good
success. Try this quick exercise for yourself….. Hold your
leg out in front of you off the floor and point your toes in
line with the straight leg. Then try and pull your foot up
to the normal toe-strap holding position…does your knee want
to bend??? In pulling your foot to the angled position, your
hamstrings have been tightened and thus cause the knee to
bend, which relieves the stretch on the hamstrings. Keeping
the hamstrings well stretched is common advice given by
physiotherapists and would also help maintain the straight
leg with angled feet. However, straight leg hiking with
pointing feet/toes take less strain on the foot joint, the
kneecap and your quads and relieves the tightening on the
hamstrings. In addition this style also requires the
toe-straps to be tighter which helps the sailor to grip the
side of the boat. The more in contact a single-handed sailor
is – the more small body movements can effectively be
transmitted to the mast and de-power the rig. It follows
that to use this style, the toe-straps anchoring point needs
to be as close to the hiking point as possible so that the
foot is not encouraged to ‘hang on’ to the toe-strap but
merely is held by the toe strap. Unfortunately for Nik
Burfoot, he gave his advice freely to his team-mate Hemmish
Pepper, who also took it to heart and subsequently beat Nik
at the New Zealand Olympic Trials in 1996.
Steve Cockerill has been sailing Internationally for 15
years and has campaigned in 2 Olympic classes. He has won 12
National Titles during his sailing career in both 2 handed and
single-handed boats. Now spending more of his time coaching,
he is currently accredited for Belgium as their Europe Olympic
Coach and at the same time is the RYA’s Europe development
coach. Despite this, Steve found the time to compete in the
Laser Radial and RS 300 National Championships winning them
both. Steve is very proud of his new Web Site which offers
both coaching hints and tips, the odd video clip, together
with answers to your questions. Do not be surprised if he also
tries to sell you something he thinks is good at the same
time!
All articles published on the Rooster Sailing Website are
the sole property of Stephen Cockerill. They cannot be re-used
without permission from Stephen
Cockerill. |