tendons, pick another hill.Too gradual If a hill is so negligible that it isn’t obvious whether you’re running up or down, it doesn’t count. Just right Any ascent between wheelchair-ramp and beginners ski-slope severity will build leg and lung strength
by former Olympian Jeff Galloway recommends that not only beginners, but also faster marathon runners, run just three to four days a week. Weekly mileage peaks at 31 to 41 miles, depending on your goal time. Galloway reports that 99 per cent of his plan
, not distance When you train by time, you don't have to measure a route, and you aren't "penalised" for wind, hills, or trails. (Whether you run six miles on hilly trails or eight miles on flat roads, if they each take you an hour and your effort is the same
