Hey gals - almost forgot to tell ya about this killer (and I do mean KILLER) leg curl...I read about it at t-mag and tried it on Saturday...
Quote:
While the prone hamstring curl probably isn't the best hamstring exercise, it's probably the most common. As such, it seems all the more important that trainees do it correctly, and, while they're at it, maximize its effects.
Hence this hybrid leg curl. Like Frankenstein creating his monster, we've combined several tips from different strength coaches and made one mother of a leg-curl exercise.
The Exercise
Okay, this one requires a bit of coordination, so those of you who have trouble patting your head and scratching your belly while whistling Dixie might want to sit this one out.
Assume the usual position on the prone leg-curl machine, but instead of doing both legs at once, we'd like you to train one leg at a time, starting with the weakest one.
These one-legged leg curls are also to be done using the 1-1/3 technique. (Hamstrings respond especially well to eccentric work, so we might as well take advantage of that fact.)
As you raise the lower half of your leg, you'll touch the heel to your butt over the course of 2 seconds, pause for 1 second, lower the heel 1/3 of the way down, and again pause for another second. Then, you'll return the heel to the butt taking another second, and then lower the weight all the way down to the starting position over the course of 3 seconds.
That's one rep, but not so fast, bubba. There's one more trick to learn.
As you raise the weight, we'd like you to flex your foot "upwards" and toward the knee (toes pointed toward the knee). Then, as you begin to lower the weight, for your 1/3 of the way down rep, point your toes away from the body.
When you curl the lower leg up again, point the toes "upward" again, and when you lower the weight all the weigh down, point your toes away again.
Got that? Whenever you're raising the weight, pull your toes in toward the body, and whenever you lower the weight, point them away from the body.
Why the soft shoe routine? Well, the gastrocnemius is one of the muscles that assist the hamstrings in flexing the lower leg toward the butt. However, by pointing the toes away from the body, we're inactivating the gastrocnemius, thus making the hamstrings do all the work on the eccentric, or lowering part of the movement.
Pretty nifty, huh?
Additional Tips
Although you might hedge at training the hamstrings one at a time (it feels "weird" until you get used to it), the vast majority of people have disparities in the strength of their hamstrings. As such, when you work both together, the stronger one bears the brunt of the work and the weaker one never catches up.
You might also remember to keep the number of reps you do during hamstring exercises low. Given its muscle fiber make-up, and very generally speaking, doing more than 8 reps, or doing sets that last longer than 40 seconds, is a waste of time. Oh yeah, you'll build muscle endurance all right if you do more reps, but you'll look like one of those pieces of sinew that come stumbling over the line at the Olympic marathon and then pukes on the cameraman's shoes.
Oh, one last thing: remember that the hamstrings have a dual function. They both flex the knee (which is worked by doing the aforementioned leg curls) and extend the hips. That's why a complete hamstring workout will always include exercises like semi-stiff legged deadlifts or good mornings.
Enjoy, only don't get too freaked the day after you do this movement, because you'll be walking like Frankenstein's monster.