yes they prob r the most important but u still need to consider the quads

deadlifts r very good for this

and glute ham raise i think

those 2 r good

and then again there r good old fashioned squats

to target the muscles u mention i suggest u push through your heels when u squat and dont allow your knees to go too much far over your toes,go down from your hips/butt first.this will also help wif knee problems.

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