UK and Europe · Public discussion

Re: New BMA briefing paper. WARNING: Long, contains H word.

Started by Martin Dann · · Last activity · 3 posts · 339 views

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UK and Europe
Published
18 March 2008
Last activity
19 March 2008
Original author
Martin Dann
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3
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  1. Just zis Guy said:

    Following previous research by the Board of Science on
    cycling, the BMA established specific policy at its 2006 annual
    representative meeting that the Association promotes cycling as a
    safe, healthy and sustainable alternative to car use.

    So why does it, and BeHIT continually promote cycling as unsafe, with
    their insistence that we should all wear MFHs.

    Quoted message said:

    Safe cycling
    Cycling statistics
    The proportion of people travelling by cycle has fallen over the
    past 25 years in England. [Reference 1]

    I am sure I have read that there has been an increase in cycling in the
    last five-ten years. Post 7/7 in London, and noticeably in Bristol in
    the last two years.

    Quoted message said:

    As will be discussed later,
    cycle helmets do not prevent all types of injury or death; they play
    a significant role in reducing head injuries. They are most
    effective at low impact speeds (approximately 13 mph or less), such
    as when a cyclist falls from a cycle without the involvement of
    other vehicles. [Reference 9]

    I think we all know that one.

    Quoted message said:


    advertising standards officials should ensure that the
    public are protected against misleading safety claims from
    manufacturers

    Now that is good, perhaps beHIT could stop their misleading safety claims.

    Quoted message said:

    cycle manufacturers and retailers should consider supplying
    a free cycle helmet (or helmet voucher) with every bike sold

    There is no such thing as a free lunch. A free helmet will either push
    up the price of the bike, or reduce the quality of the components (e.g.
    the already cheap brakes).

    Quoted message said:

    www.publications.parliament.uk/pa/cm200708/cmhansrd/cm080122/text/80122w0007.htm#08012323000031.

    Quoted message said:

    Charles' story
    Charles, a senior orthopaedic consultant, fell from his bike
    following a collision with a car on an A-road. He was cycling off a
    roundabout onto a dual carriageway at just under 20 mph when the
    crash occurred. He suffered a grazed and fractured shoulder, grazing
    to the right side of his head and cuts to his chin. He strongly
    believes that the cycle helmet he was wearing saved him from
    sustaining more severe injury to his head.

    Would he have hit his head if he was not wearing a MFH?
    Does he understand basic physics? which I thought Doctors had to know.

    20mph is 2.4 times the KE of a 13 mph collision, plus there was a car
    involved. The helmet would simply have failed in this case. Also the KE
    of the helmet is similar to the max. energy it can absorb.

    Quoted message said:

    Cycle helmets perform three functions. Firstly they reduce the
    deceleration of the skull and hence the brain by managing impacts.
    This is achieved by crushing the soft material contained within a
    helmet. Secondly a helmet acts by spreading the area of an impact.
    As it is impacted, the expanded polystyrene shell of the helmet
    dissipates the energy over a rapidly increasing area like a cone.
    This prevents forces from being localized to one concentrated small
    area. Finally a helmet plays a vital role by preventing direct
    contact between the skull and the impacting object.

    This ignores rotational injuries, and the fact that the skull already
    does much more of this than a MFH will

    Quoted message said:

    Simon's story
    Simon, in an effort to get fit for his 40th birthday, started a
    regular regime of cycling in the evening. Like many people, he
    didn't wear a cycle helmet because he thought they looked stupid. On
    one occasion, for reasons unknown, he blacked out and fell from his
    bicycle, hitting his head on the pavement as he fell.

    So why did he just suddenly black out whilst riding a bike?
    If he had sudden brain damage for no apparent reason causing a black
    out, could this have caused the rest of his symptoms.

    Quoted message said:

    "I have seen - in my practice and when working in A/E -
    quite a number of serious head injuries from children falling off
    bicycles. I have also seen a number of children who wore helmets who
    only suffered minor injury. I am convinced that helmets reduce
    injury."

    Someone I work with is convinced that the world is flat.

    Quoted message said:

    Effectiveness of helmets at reducing injuries
    As part of its policy to improve the safety of cyclists, the DfT
    conducted an independent critique of evidence on the efficacy of
    cycle helmets. [Reference 14] It concludes that:

    Is this the one that was discussed recently and show to be a pile of
    smelly stuff?

    Quoted message said:

    Samuel's Story
    Seven year old Samuel was out cycling near his home when he collided
    with a car. The cycle helmet Samuel was wearing almost split in two
    as a result of the impact. While Samuel did suffer cuts and bruises
    he did not suffer any serious injuries to the head.

    So he collided with a car (outside of the design specs. of the helmet).
    The helmet then catastrophically failed, providing no protection whatever.

    Quoted message said:

    McDermott 1993 Thompson 1996a Cochrane review of five studies To
    determine if cycle helmets reduce head, brain and facial injury for
    cyclists of all ages in event of a crash or fall Systematic
    review Incidence of head injuries
    Incidence of facial injuries
    Protective effect of helmet Helmets reduce the risk of head
    injury by 85%, brain injury by 88% and severe brain injury by 75%.
    Helmets provide equal level of protection from cars (69%) compared
    to other causes (65%)

    Wow 85-88%, now where I heard that one before. I wish I had been wearing
    a cycle helmet last year when I broke my leg.

    I will snip the rest, as it is clearly not worth reading after quoting
    the above statistic.
    As you say, it is ironic that the idiot wants to stop misleading safety
    claims, yet quotes the 88% stat.

  2. Martin Dann said:
    Quoted message said:

    advertising standards officials should ensure that the
    public are protected against misleading safety claims from
    manufacturers

    Now that is good, perhaps beHIT could stop their misleading safety claims.

    I thought that at first, but the key is they're not manufacturers
    (unless "manufacturers of spin" are included ...

    -dan

  3. Daniel Barlow said:
    Martin Dann said:
    Quoted message said:

    advertising standards officials should ensure that the
    public are protected against misleading safety claims from
    manufacturers

    Now that is good, perhaps beHIT could stop their misleading safety
    claims.

    I thought that at first, but the key is they're not manufacturers
    (unless "manufacturers of spin" are included ...

    It's nothing you can really get them with because they are indeed not
    manufacturers, but it does demonstrate (as if you didn't know
    already...) that they're as hypocritical a bunch of <mumble> as you'll
    find anywhere.

    Pete.
    --
    Peter Clinch Medical Physics IT Officer
    Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
    Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
    net [email hidden] http://www.dundee.ac.uk/~pjclinch/

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