Science Daily reports that research conducted by the university’s School of Nursing & Health Studies has found that seven of 10 commuters who use Capital Bikeshare go without a helmet, and only three of 10 commuters using their own bikes similarly go without protection for their heads:

The researchers concluded that out of the total 2,297 cyclists observed in the 30-day period (1,140 commuters and 887 casual riders), 10.1 percent of commuters and 12.4 percent of casual riders were Bikeshare users. Of those using Bikeshare, helmet use was significantly less compared to private cyclists. For example, 70.8 percent of commuters on private bicycles wore helmets, compared to only 33.1 percent of Bikeshare commuters.

This certainly isn’t the first study to verify what anyone can observe on a daily basis; in early May, another study pegged the number of Bikeshare users going without helmets at 80 percent.

The reasons for the low use of helmets on Bikeshare are pretty simple: opting for bike-sharing to get somewhere can be a spur-of-the-moment decision, and not everyone always carries a helmet with them. (Even though I always wear a helmet on my own bike, I’ve often gone without one on Bikeshare.)

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Martin Austermuhle blogs at DCist . The Local Blog Network is a group of bloggers from around the D.C. region who have agreed to make regular contributions to All Opinions Are Local.