I've been working out for about a year now and have seen some good progress but I seem to be hitting a plateau, especially with glutes, hamstrings and quads.
I am doing include squats,
leg press, seated curl, and sldl's. My calves seem to grow no matter what I do, so I don't work them separately. But I would like to increase my thighs to match.
Lunges have exacerbated knee problems for me in the past, so I have stayed away from them; lying and standing hamstring curls have given me lower back problems.
My questions are:
1) I read recently that thighs respond best to lighter weights with more reps. Is this true? I have been working mostly in the 3 set, 6-8 rep range, with heavy (for me) weight. Would I see more growth if I lowered the weight and increased the reps?
2) Are there other exercises I could do for glutes/legs that don't stress the lower back or knees?
Thanks.