@mbonsma Thanks!
Question as you're an expert on this topic and I'm very much not 
I wonder whether the authors draw strong conclusions (findings) without equally strongly pointing out the lack of quality data* does not support those conclusions. Would this not have been better with only a "better data is needed" finding?
*e.g. it's not discussed various manners the form nurses fill in can "default" to "bike" instead of "e-bike". Neither is there any distinction between commuting and sports.
