We have tons of squat variations to work the quadriceps and glutes, but I've never seen a free weight exercise to really work the hamstrings. It seems like hamstring isolation is only possible on a leg curl machine. Machines don't work the stabilizer muscles, so a free weight variation would be more complete.
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In my weightlifing circles, stiff-legged deadlifts have always been considered THE hamstring exercise. My buddies have used the name Romanian deadlifts interchangably with stiff-legged deadlifts, but after doing some Googling for references, I see that these names can be differentiated. If you use form like in the first link, you'll want to be standing on a raised surface so you can take the motion as low as possible without the plates hitting the floor. It's optimal if you have a deadlift platform, because it allows you to take the barbell from the rack and go straight into your exercise. However, if you're not lucky enough to have access to one, you'll need to find something else to step up onto. However, it can be difficult and a little bit dangerous to step up from the floor onto a platform when carrying a barbell, so be careful! And, some advice on getting started with stiff-legged deadlifts:
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A free weight isolation exercise is an oxymoron, I suggest if you want to isolate then use the leg curl machine - that will give you the isolation you desire. |
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No need to look any further than Squats.....many consider this exercise the King of all exercises. Since your muscles don't work in isolation, you shouldn't train them in isolation. Dumbbell, barbell, body weight and 100 other variations...keep it simple and focus on technique. Free weights always provide more overall benefit than machines ever will. |
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All existing answers provide good hamstrings exercises, but none of them really isolate the hamstrings. (It is rather difficult to get both "free weights" and "isolation" in one exercise as @Moz pointed out) If "isolation" is more important, just go with the leg curl machine. If you don't want to use machines, you can use cables to get a good compromise between free weights and isolation. From http://www.fullfitness.net/exercises/legs/cable-hamstring-curl:
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On top of compound exercises like deadlifts (particularly the stiff-legged variety, if you're flexible enough) and squats (if you're flexible enough to do them right), glute-ham raises are an excellent way to target the hamstrings.
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It's not precisely free weights, but if you have or use bands then you can attach one from your ankle to a stable spot near the floor and perform a "curling" motion. You'll need to be careful to make sure that you're stable throughout the exercise. If you truly want isolation though, then I don't know of anything outside of a leg curl machine. As Moz said, it's hard to get isolation strictly with free weights. Even something as simple as a bicep curl is going to be using your back and shoulders. If you start using a curl bench then is that really much different from using a machine? I mean, if you used a bench for your hamstrings that looked and acted exactly like a leg curl machine but with weights, is it really still "free weights" at that point? The only difference at that point is the angle of the resistance. |
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