The authors simply cannot have it both ways. One cannot declare a narrow scope for a review and then make conclusions beyond that scope and expect not to be called out for it - that is underhand.
I'm claiming it should not have been published in that form because it did include something which is quite clearly out of scope, as well as including earlier discredited studies. If it was edited to stick to its scope and the included studies checked for later rejection, it might be publishable.
The conclusions drawn are absolutely textbook and very deliberately worded, as these things always are, to avoid these sorts of accusations.
The conclusion merely suggests that the results '
support the use of strategies to increase the uptake of bicycle helmets'. Difficult to argue with this really - that's exactly what the results do. The way you are talking about it sounds like its saying that the results prove beyond doubt that nobody should even think about going near a bike again without a helmet.
Support in this context (as opposed to physically in buildings etc) leaves room for other arguments - some of which might be for the increased uptake of bicycle helmets and some of which might be against. If you can find reviews which support bicycle helmet use to be discouraged because the make the riders (like you) crash more - that's fine. The reviews can happily co-exist. One does not invalidate the other.
If you said that you
supported your local football team (I couldn't think of another badger analogy), I wouldn't take it to mean that only you supported your local football team and your support was so good that no other support was necessary. You could single handedly pay the club's wages, do all of the shouting at the games and render any other support from opposing teams to be in vain because your support meant that you'd already won everything anyway.
Support suggests that there are other facets to a wider argument. The conclusion isn't out of scope - it's a given that anyone reading the review would consider it in the context of the abstract.
Anyway - this is just diversionary from the important stuff - your support for helmet user crashing more often. After all, I'm not the only one who is interested.
Incidents 1, 2, 5 and 6 are outside the design spec of helmets. Incident 3 is only inside the spec of some Snell-approved helmets. And there still remains the elephant in the room of why helmet users crash more often. I'm certainly not rushing to use helmets again and start crashing more again. But it's your head.
Do we, and where is that information available from?
Incidents 1, 2, 5 and 6 are outside the design spec of helmets. Incident 3 is only inside the spec of some Snell-approved helmets. And there still remains the elephant in the room of why helmet users crash more often. I'm certainly not rushing to use helmets again and start crashing more again. But it's your head.
That's an interesting claim. Where did that come from?