|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
The effectiveness of bicycle helmets
http://www.rospa.com/roadsafety/info/cycle_helmets.pdf
54 “Helmets for Preventing Head and Facial Injuries in Bicyclists (Cochrane Review)” D C Thompson et al, Issue 1, 2003 This is a review of the validity and findings of five, previously published, case-controlled studies from different countries into the effectiveness of cycle helmets. The review found that all the studies provided consistent evidence that wearing an approved cycle helmet significantly reduces the risk of head or brain injuries in a crash or collision. It concluded that overall, cycle helmets decrease the risk of head and brain injury by 65% to 88%, and decrease the risk of facial injury by 65% (but do not protect the lower face or jaw). The review also stated that helmets are effective for cyclists of all ages and in accidents involving collisions with motor vehicle as well as those which do not. It is a feature of Cochrane Reviews that responses to the review from other researchers are published along with the replies by the original authors. This review generated several responses that were critical of the review’s findings, mainly on the following grounds: ++ helmets are not designed to protect the brain from rotational injuries, which are the most serious type ++ helmet laws discourage cycling which is one reason for any apparent reduction in head injuries and also means the health and environmental benefits of cycling are lost ++ cyclists who wear helmets feel safe and so cycle in a less cautious manner, hence increasing their accident risk (risk compensation). The authors disagreed with these arguments on the grounds that: ++ helmets do protect against the most common types of head and brain injuries, and the research studies prove this ++ there is no scientific evidence that mandatory cycle helmet laws discourage cycling ++ there is no scientific evidence that cyclist who wear helmets take more risks. |
Ads |
#2
|
|||
|
|||
Video: World Cycle Race grand depart + progress update
QUOTE:
You may remember that we reported at the start of March that 11 riders set out from Greenwich on the World Cycle Race, attempting to break the circumnavigation record for unsupported riders. They've been out there for almost a month now so now's as good a time as any to catch up with their progress and have a look at this nice video by Ian Homer of the Grand Depart. Kyle Hewitt, the first rider interviewed, never made it out of the country, citing personal reasons and a change in circumstances for his decision to cancel his challenge. Stephen Phillips is also down on the tracking website as scratched, leaving eight men standing. So who's in the lead? Well, some are going west and some east, so it's not immediately clear from the map. But helpfully the race website has a handy ready reckoner of who's travelled how far, and from the last update on 14 March we can see that it's Mike Hall, heading east, who's leading the pack. He's managed to cover an impressive 6,012km thus far, followed by Martin Walker who's about 1,000km behind right now. It's 700km back to third placed Simon Hutchinson. Mike's currently in India (as is Simon) whilst Martin's heading the other way round the world and is currently in the deep south of the USA. Assuming that Mike Hall can keep up the pace he's currently setting, he looks on course to beat Vin Cox's unsupported and ratified time of 163 days, 6 hours and 58 minutes by almost a month. That's not currently the record, though; Alan Bate is the incumbent with a time of just 106 days. Bate's record, however, was set with the help of a support team, leading for calls for the record to be split into separate standards for supported and unsupported riders. All of the World Cycle Race participants are unsupported on their attempts. http://road.cc/content/news/54757-vi...rogress-update -- Simon Mason |
#3
|
|||
|
|||
33 PIECES OF SECURITY TORX HEX SCREWDRIVERS BITS
33 PIECES OF SECURITY TORX HEX SCREWDRIVERS BITS SET by torx Price: £9.99 Sale: £4.99 Deal Price: You Save: £5.00 (50%) Technical Details 9 Security Torx Tamperproof Bits T8, T10, T15, T20, T25, T27, T30, T35, T40 6 Hex Key Bits 5/64", 3/32", 7/64", 1/8", 9/64", 5/32" 4 Tri-Wing Bits Number 1, 2, 3, 4 4 Spanner Bits Number 4, 6, 8, 10, 6 Hex Key Bits Number 2, 2.5, 3, 4, 5, 6mm 3 Trg set Bits Number 6, 8, 10; 1 x 60mm Length Bit Holder -- Dave - Cyclists VOR. "Many people barely recognise the bicycle as a legitimate mode of transport; it is either a toy for children or a vehicle fit only for the poor and/or strange," Dave Horton - Lancaster University |
#4
|
|||
|
|||
Video: World Cycle Race grand depart + progress update
"Simon Mason" wrote in message . uk... Assuming that Mike Hall can keep up the pace he's currently setting, he looks on course to beat Vin Cox's unsupported and ratified time of 163 days, 6 hours and 58 minutes by almost a month. That's not currently the record, though; Alan Bate is the incumbent with a time of just 106 days. Bate's record, however, was set with the help of a support team, leading for calls for the record to be split into separate standards for supported and unsupported riders. All of the World Cycle Race participants are unsupported on their attempts. http://road.cc/content/news/54757-vi...rogress-update It will be very interesting to see how few days they can take for this epic test of human endurance 106 days is simply amazing. -- Simon Mason |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
The straight gen about bicycle helmets | Andre Jute[_2_] | General | 3 | August 28th 10 04:47 PM |
not only bicycle helmets | AMuzi | Techniques | 9 | May 19th 10 04:21 AM |
Equestrian helmets as bicycle helmets? | [email protected][_2_] | General | 19 | December 27th 09 02:56 AM |
Large Bicycle Helmets | Brian Millson | UK | 1 | August 15th 05 07:33 PM |
Large bicycle helmets | Michael | Australia | 6 | October 18th 03 11:25 AM |