I’ve read about using sleds or isorobic to replace hills. I don’t have any access to isorobic; how would you set up sleds if you were to do it to simulate hills? Does it have to be certain percentage of body weight? or should it be like certain percentage slower than regular sprint speed? I know that achieving 45 degree acceleration angle and full hip hyperextension is essential. Would it be more stressful than hills? I just get shin splint easily unfortunately…
Thank you.