(12-04-2011, 06:48 AM)marathondan Wrote: Maybe focusing on hills rather than speed is the answer? I guess they both put extra load on the knees, but hills might be less jolting?
Yes, this may the best compromise. Hills are still hard on knees but not as jolting, indeed. And as we keep hearing, hills are "speed work in disguise"... this may be the ticket Dan, thanks.