Dear Vernon,
Sorry I didn't make myself clear. Back when I was riding, they had just
started using look pedals. The old style shoes and pedals were the ones
that the cyclist rode on to get the impression.
http://www.uscoles.com/bike1980.htm
You can see what was done back then. With the Look pedals, the screws
were not tightened to allow for rotation of the cleat. The cyclist then
rode on a stand and the angle was checked. The screws were then
tightened in this position.
Sorry for the confusion.
Regards,
Stanley
Vernon Lever wrote:
> Dear Stanley
>
> Thanks for your comprehensive reply regarding bike set-up with special
> regard to cleat position.
> Regarding how you explained the " common way to determine
> thestarting position is to have the cyclist ride without the cleat
> attached to the shoe for a while and let the mark that forms on the sole
> be your guide."
> This is rather confusing to me as if the cyclist is using say the look
> system and a stiff soled shoe and the "clover cleat" is removed, how
> can one A) possible ride with out slipping off the pedal, and B) how
> will that make a mark?
>
> Regards,
>
> VERNON LEVER
> P.O.Box 751380
> GARDENVIEW 2047
> Gauteng South Africa
> Tel: H) 011-784-3509
> Cell: 082-410-5249
>
> ----- Original Message ----- From: "Stanley Beekman"
> <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, January 23, 2006 6:05 AM
> Subject: Re: Cycling setup
>
>
>> Vernon,
>>
>> I don't know if I qualify as a keen road cyclist. The most I ever did
>> was 100 miles at one time, and I haven't ridden in 20 years. But I
>> will tell you what I know.
>> Dr. Kirby gives an excellent reference on the set up of a bicycle, so
>> I won't repeat this. I will add a little something about what we can
>> do as podiatrists. Regarding cleat position, a common way to
>> determine thestarting position is to have the cyclist ride without
>> the cleat attached to the shoe for a while and let the mark that
>> forms on the sole be your guide.
>> In podiatric pathomechanics, the main imbalances are equinus, leg
>> length, and compensation for varus/valgus imbalances, and functional
>> hallux limitus. Equinus is compensated for in the pedal, so this is
>> not something we have to worry about.
>> A cyclist is the only person in which I want to know if the leg
>> length is from the femur or tibia. If the shortage is below the knee,
>> Use a piece of leather of the approprate thickness between the shoe
>> and the pedal. In cases of Look pedals or its equivalent, a piece of
>> leather between the shoe piece and the shoe works well. Just remember
>> to replace the screws with longer ones.
>> If the shortage is in the femur, the difference is made up by a
>> difference in the crank. Remember that you want the knee directly
>> over the forefoot at propulsive part of the pedal cycle (9:00
>> looking at the left pedal). Just make sure that before you correct
>> for a shortage, that the sacroiliac joint is not the causative factor
>> of the shortage . You wouldn't want the patient to go to a
>> chiropractor/osteopath, etc, and have to have the pedal arm changed
>> back.
>> Frontal plane imbalances are taken care of with an orthotic. I prefer
>> full length thermoplastic orthotics which add to the stiffness of the
>> sole. A metatarsal pad is also helpful in increasing the efficiency
>> of the pulling part of the pedalling cycle. The metatarsal pad helps
>> to prevent the foot from translating posteriorly, which helps to
>> transfer the pull back force to the orthotic. Since the orthotic
>> pulls back on the plantar most portion of the heel cup, which is also
>> the stiffest, this results in the least loss of efficiency.
>> The addition of a toe crest also contributes to this pull back
>> efficiency.
>> I am not sure where functional hallux limitus plays a roll in this,
>> so I will defer to Dr. Danenberg, or Dr. Willliams. I would imagine
>> that if the first metarsal is forced upwards, there would be
>> pronation at the propulsive part of the pedal cycle, but I would like
>> to hear this from the experts.
>> I hope this helps.
>>
>> Regards,
>>
>> Stanley
>>
>> Evelyn Lever wrote:
>>
>>> Hi
>>> I recall some years ago there were some discussions on this
>>> mailbase regarding road bike set-up with special mention of cleat
>>> position.
>>> I also recall that there were a few Pods. out there who were/are
>>> keen road cyclists.
>>> I have read a lot of stuff over the internet regarding bike set-up
>>> as well as the optimal cleat positioning in order to achieve maximum
>>> force through the pedals.
>>> Are there any Podiatric cycling experts out there who could help me
>>> in this regard (namely road bike set-up and cleat positioning)?.
>>> Regards,
>>> VERNON LEVER
>>> P.O.Box 751380
>>> GARDENVIEW 2047
>>> Gauteng South Africa
>>> Tel: H) 011-784-3509
>>> Cell: 082-410-5249
>>> -----------------------------------------------------------------
>>> This message was distributed by the Podiatry JISCmail list server
>>>
>>> All opinions and assertions contained in this message are those of
>>> the original author. The listowner(s) and the JISCmail service take
>>> no responsibility for the content.
>>>
>>> to leave the Podiatry email list send a message containing the text
>>> leave podiatry to [log in to unmask]
>>>
>>> Please visit http://www.jiscmail.ac.uk for any further information
>>> -----------------------------------------------------------------
>>>
>>
>> -----------------------------------------------------------------
>> This message was distributed by the Podiatry JISCmail list server
>>
>> All opinions and assertions contained in this message are those of
>> the original author. The listowner(s) and the JISCmail service take
>> no responsibility for the content.
>>
>> to leave the Podiatry email list send a message containing the text
>> leave podiatry
>> to [log in to unmask]
>>
>> Please visit http://www.jiscmail.ac.uk for any further information
>> -----------------------------------------------------------------
>>
>>
>
> -----------------------------------------------------------------
> This message was distributed by the Podiatry JISCmail list server
>
> All opinions and assertions contained in this message are those of
> the original author. The listowner(s) and the JISCmail service take
> no responsibility for the content.
>
> to leave the Podiatry email list send a message containing the text
> leave podiatry
> to [log in to unmask]
>
> Please visit http://www.jiscmail.ac.uk for any further information
> -----------------------------------------------------------------
>
>
>
-----------------------------------------------------------------
This message was distributed by the Podiatry JISCmail list server
All opinions and assertions contained in this message are those of
the original author. The listowner(s) and the JISCmail service take
no responsibility for the content.
to leave the Podiatry email list send a message containing the text
leave podiatry
to [log in to unmask]
Please visit http://www.jiscmail.ac.uk for any further information
-----------------------------------------------------------------
|
