do I have to lower the weight for Circuit Training?
I am using 60 lbs for PS Legs and 55 lbs for the Firm's Lower Body Split. If I use 40 lbs with the Power Circuit and the Body Max Circuit Section my knees start hurting, although my leg muscles could go a lot heavier. I have to go all the way down to 30 lbs to feel no stress on the knees. Why is there such a difference?
I am using 60 lbs for PS Legs and 55 lbs for the Firm's Lower Body Split. If I use 40 lbs with the Power Circuit and the Body Max Circuit Section my knees start hurting, although my leg muscles could go a lot heavier. I have to go all the way down to 30 lbs to feel no stress on the knees. Why is there such a difference?