hamstring exercise?

[Submission Machine]

i try to work out all the different muscles in my legs, but i don't want to do heavy compound stuff like squats and clean and jerks, as a lot of ppl get injured doing those. but i heard that the leg curl is not a functional exercise. is this true? what can i do to exercise the hamstrings without using olympic lifts if this is true?

my leg workout:
lunges (3X10) - free weight
calf machine
leg press
abductor machine
adductor machine
leg curl

i have been doing deadlifts with the bar only but have thought about phasing these out of my program because i already do a lot of supermans

1. does the leg curl give functional strength?
2. does the leg curl machine lead to injuries?
3. if no to number one, is there another exercise (that does not rely on olympic lifts or heavy compound lifts that i can do)

thanks for the responses

[Standard]

This thread was closed in S&P because you are avoiding all the exercises that would solve your problem, squats, deadlifts and all of the olympic lifts are as safe as any other exercise out there, once you spend time and learn to do them properly.

Skip the leg curlz and do any or all of the following.

Squats
Deadlifts
Romanian DL's
Stiff legged DL's
Good mornings
Reverse hypers
Glute ham rasies
Cleans
Snatches