jamanetwork.com
I appreciate your view; however, (1) I did not refer to the JAMA family of medical journals, and I would not as that is not a credible means of assessment of their value, and (2) I referred to the actual evidence-based statistics for the journal in question. Scopus provides a similar ranking. Journals are ranked on citations, not opinions. See https://www.scimagojr.com/help.php for further details on the ranking calculations at SJR. Citations reflect the value placed on the research by their peers. No matter how you spin it, JAMA Surgery is not a highly ranked journal from a research perspective at least.
Clearly one of the most important aspects of the above story is the braking power of the e bike conversion. People who lack knowledge of physics have no business doing a bike build. The advent of the disc brake is extremely important for an e bike.. I have an issue with some of the focus stats used. In 2020 we had supply chain problems so the import rise from 437K in 2020 to 1.1 million in 22 is no surprise. Remember all those stimulus checks? I wonder if sales are holding the same growth factor as inflation has out paced wages for most of America. Ridership would also have increased during this period due to fuel costs doubling from $2 per gallon to well over $4 in my area. As parents struggled to fill the tank, ridership was sure to increase. One of the above comments cited an increase in adult usage and I agree. People who may not have ridden in 20, 30 even 40 years suddenly got back on bikes for exercise and pedaled with the motor. Overall this is a good thing but accidents were sure to increase as skills, reaction time and balance can dim with age. The idea of letting a 12 year old have an e bike that goes 30mph makes my head want to explode. What are parents thinking . It's no wonder Brighton Beach now has a total e bike ban. Can we please have a little common sense on both sides of that issue! We test 16 year olds before letting them drive a car and we need to move in that direction before letting them loose with an e bike. I knew my son was not ready for an e bike till he was 18 and he got his DL at 20 but all children develop at different rates. Should personal liability and health insurance be required ...perhaps for an e bike. If you haven't seen the picture of the line of Super 73 e bikes (A 30 MPH mini bike look alike) at the Brighton beach Academy it is worth investigating. There must be a ton of status peer pressure there. It looks like 100 of these are against the school fence. With millions of e bikes on the road, and many contributing poor decisions, 1000 hospital stays per year does not surprise me. I wonder what the rate for actual motorcycles would be if we used like numbers. We make those riders demonstrate a level of proficiency with turns and braking. I remember my father failed his first motorcycle retest after not riding for 30 years. On the flip side at the age of 13 I was riding a pedal bike at 25mph but was also riding 64 mile events on weekends. The riders skills should be in line with the speed of the machine. Even then accidents will happen. My biggest fear is car doors and people not seeing my bike. A front and rear light should be mandatory. I passed a road biker today on a very grey day wearing an all black suit with neon green on his back with no lights. I wonder who would be to blame if a car pulled in front of him at a 90 degree angle. He was all but invisible at dusk. An accident for sure but preventable. He was wearing a helmet
Depends on how bad the hip break was, I guess. Two or so years ago I T-boned a passing car at an intersection. Out of it I got a concussion and a cracked hip socket. Took me about 6 weeks to heal enough to resume riding. Since then I have been super cautious at intersections. Note that I ran into the car, not vice-versa.
Don't have access to the full text. Presumably this study made an effort to only consider Class 1/2/3 e-bikes and not higher power vehicles?
The editorial board of JAMA Surgery celebrates its 2018 ranking as the top surgery journal in the world; Melina R. Kibbe, MD, editor-in-chief, seated at center.
Bikes like that figure highly in internet forum rants, but when it comes to the actual ebike population they may as well not exist, their numbers are so small. I think I've seen one Sur Ron on the main path here in the last year. Not a single QS203 monster hub.
Regarding JAMA Surgery journal not being "highly ranked" consider the following copied from Wikipedia. JAMA journals are widely highly regarded in the medical community for publishing high quality research. I doubt that legislators, if presented with the data from this short research letter, would be as fastidious as some on this forum present themselves to be.
World ranking[edit]A
The editorial board of JAMA Surgery celebrates its 2018 ranking as the top surgery journal in the world; Melina R. Kibbe, MD, editor-in-chief, seated at center.
According to the annual Journal Citation Reports, the 2021 impact factor for JAMA Surgery is 16.681, making it the highest-ranking surgery journal in the world. This continues a precedent that the journal set in 2018 as the first surgery publication to break double digits in that scientometric index.[7][8][9]
