@Johan_Barelds @MarvinFreeman NSA seems to be a popular and effective training strategy for half-marathons. But then I can't imagine EIM not being effective too, given the similarities.
I think one big difference is that the EIS interval paces are slower. For me, the 1K EIS pace is nearly a minute slower than the NS pace. The NS pace brackets my threshold pace. The #EIS pace is below threshold.
@Johan_Barelds are you skeptical of the "fewer injuries" idea because you feel intervals at any speed are harder on the body?
