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Training on Leg Sleds

Concreteguy

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Mar 12, 2013
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I have notice over and over all the pro's are doing partial reps on this. They use a shit ton of weight but literally are doing half reps. Does anyone have a rime or reason for this. I have always been of the opinion that full range reps are superior for muscle fiber damage.

What's going on?????????
 

bbuck

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Dec 28, 2007
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The EMG studies I have seen show that quad activation is greatest when the knee is bent at 90 degrees under a load. And even with a greater weight less fibers are activated at a shallower bend. I have to assume that the bones/skeleton are carrying the load more as they get inline with each other. But people like the appearance of doing more work or what is new and trendy.
 

SURGE

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Pro's aren't excluded from ego lifting like others do. I see it in vids all the time. Although they are probably thinking time under tension in the most important part of the rep when it comes to leg press. I sometimes shorten the rep rom and the burn in my quads is crazy.
 

bbuck

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Dec 28, 2007
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With enough range of motion I can see where it would be useful as it keep the load off of your spine.
 

kubes

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Agree it keeps from loading the spine. I stopped squatting years ago and switched to leg press to stop loafing my spine. Bad disc at l5s1 that took years to heal but it did get better and I been doing leg press instead
 

odin

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I agree with all posts. Keeping constant tension and not loading the spine. Some go down too much and you can see their lower back being put in an unsafe position. Doing it as CG posted means you can overload the quads with more weight.
 

striffe

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I have injured my lower back on leg press going too far down so I am always careful now with the rom especially when going heavy.
 

Concreteguy

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So then the general consensus is the "partial" reps are ok and it will activate muscle growth? Getting ready to add this in.
 

striffe

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So then the general consensus is the "partial" reps are ok and it will activate muscle growth? Getting ready to add this in.

I suppose it depends how partial the reps are. I am sure your partials will be fine though. Some peoples partial reps aren't going to do much! I know what you mean though and for leg press just over 1/2 rom should be good. I stopped going all the way down so mine are about 3/4 at most and I feel it much more in my quads throughout the set.
 

Concreteguy

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Hey guys!!!!!

Wow does that work well. I did legs tonight and opened up with leg curls to warm up my knees. I then went to the sled. I started at 15 reps for a couple sets and it was so easy I just pounded some more plates on.
This is where it sneaks up on you. Because your only doing these partials and it feels so easy(zero knee pain) I started doing sets of 20's.
I was going to failure but because it felt so good I think my point of failure was extended. Between sets my legs were on queer street man. I was shaking but not in any kind of pain. Just burning legs.
Guys I will never do full range leg presses on a sled again!
 

saps

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Apr 2, 2013
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Guys remember back in I wanna say the late 90's there was a thing called Power Factor Training. This is basically what CG is talking about. Its partial reps in one's so-called strongest range. It's not vastly different than a powerlifter who does 4board presses to strengthen their lockout.
I remember years ago seeing video of Dusty Hanshaw doing partial lateral raises. He'd grab like 130's and they'd move maybe 8-10" off the sides of his thighs. I have been doing these myself ever since and they are a great compliment to full range reps. Almost any exercise can be done with partial reps to emphasize certain aspects. Obviously YMMV with different exercises and body parts.
 

Concreteguy

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^^^Great point you made brother!^^^I'm going to have to add this to a bunch of different exercises.
 

rmtt

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Jul 31, 2007
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Guys remember back in I wanna say the late 90's there was a thing called Power Factor Training. This is basically what CG is talking about. Its partial reps in one's so-called strongest range. It's not vastly different than a powerlifter who does 4board presses to strengthen their lockout.
I remember years ago seeing video of Dusty Hanshaw doing partial lateral raises. He'd grab like 130's and they'd move maybe 8-10" off the sides of his thighs. I have been doing these myself ever since and they are a great compliment to full range reps. Almost any exercise can be done with partial reps to emphasize certain aspects. Obviously YMMV with different exercises and body parts.

I remember this. I think it's great to work in with your usual routine.....but they tried to sell the system as a complete workout where every exercise was done it that fashion.

It has it's merits.....but you still need that full range of motion just short of lockout to stimulate as much growth as possible.

But adding some of this work in at the last sets when the muscles are fatigued are a good way of upping the intensity at times.
 

ProFIT

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Guys remember back in I wanna say the late 90's there was a thing called Power Factor Training. This is basically what CG is talking about. Its partial reps in one's so-called strongest range. It's not vastly different than a powerlifter who does 4board presses to strengthen their lockout.
I remember years ago seeing video of Dusty Hanshaw doing partial lateral raises. He'd grab like 130's and they'd move maybe 8-10" off the sides of his thighs. I have been doing these myself ever since and they are a great compliment to full range reps. Almost any exercise can be done with partial reps to emphasize certain aspects. Obviously YMMV with different exercises and body parts.

There is definitely a place for partial reps. Especially when overloading the muscle in it's strongest position. It's a good way to finish an exercise as well. The issue for some is they do partials too much. I think pro's doing leg press is different though and it's more about staying safe and keep constant tension.
 

FastBunny

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May 27, 2018
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I personally got thicker legs and better results when I was not going down parallel or below paralle. In a personal oppionopn I believe that partial reps work best for legs