Author Topic: Do we have any info on stretching/foam rolling affecting the stretch reflex?  (Read 5208 times)

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Dreyth

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Curious to read about this.

There has to be SOME kind of effect in my opinion. It's probably very minimal though.
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LBSS

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in general or acutely?
Muscles are nonsensical they have nothing to do with this bullshit.

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Dreyth

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in general or acutely?

In general, as in, if i cant touch my toes and after a month of stretching in can put my palms to the floor easily without a warm up.
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LBSS

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good question, no idea. gonna look into it though. my guess is none at all.
Muscles are nonsensical they have nothing to do with this bullshit.

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Raptor

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Too much flexibility can be bad for the stretch reflex.

ChrisM

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I wonder when you'd begin seeing diminishing returns? Olympic gymnasts are incredibly flexible and yet still seem quite explosive.
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LBSS

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Too much flexibility can be bad for the stretch reflex.

you sure? how do you know?
Muscles are nonsensical they have nothing to do with this bullshit.

- Avishek

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Raptor

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Because there's a loss of stretch reflex when you're too flexible - you don't benefit from it anymore. If you're still explosive it's because you're strong, not because you still benefit from the stretch reflex at the level of people that aren't as flexible as you. But this applies in something like ballet or whatever.

MattA

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Because there's a loss of stretch reflex when you're too flexible - you don't benefit from it anymore. If you're still explosive it's because you're strong, not because you still benefit from the stretch reflex at the level of people that aren't as flexible as you. But this applies in something like ballet or whatever.

This answer does not justify your statement. What happens physiologically that makes you say that?

LBSS

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Because there's a loss of stretch reflex when you're too flexible - you don't benefit from it anymore. If you're still explosive it's because you're strong, not because you still benefit from the stretch reflex at the level of people that aren't as flexible as you. But this applies in something like ballet or whatever.

yeah i'm with matt, i'm not sure this makes sense.
Muscles are nonsensical they have nothing to do with this bullshit.

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MattA

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Maybe Raptor knows something that we don't, but he needs to explain it in his post, not just take his opinion/theory and write it out as fact. The muscle spindles, which are responsible for activating the stretch shortening cycle, respond to both changes in muscle length AND the rate/speed of change in length. Regardless of how flexible you are statically, I would think it would still kick in during a rapid eccentric contraction. Like in a depth jump, your knees don't bend much to stretch the quadriceps, it's the rate/speed of that stretch that causes the reflex.
« Last Edit: December 05, 2014, 12:25:24 pm by MattA »

Raptor

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Maybe Raptor knows something that we don't, but he needs to explain it in his post, not just take his opinion/theory and write it out as fact. The muscle spindles, which are responsible for activating the stretch shortening cycle, respond to both changes in muscle length AND the rate/speed of change in length. Regardless of how flexible you are statically, I would think it would still kick in during a rapid eccentric contraction. Like in a depth jump, your knees don't bend much to stretch the quadriceps, it's the rate/speed of that stretch that causes the reflex.

I think that's a good point. I don't have any evidence for my statement other than what should logically occur using my subjective experience.

Raptor

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By the way - forget what I write around here, I'm not in the right mental state to think about anything. Sorry about that.

MattA

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By the way - forget what I write around here, I'm not in the right mental state to think about anything. Sorry about that.

No worries man. I actually thought you did have some reasoning behind your statement but just hadn't taken the time to write it all out. I can kinda see where you're coming from in that if I stretch really good, my muscles feel more relaxed and less explosive, but I don't feel like that has to do with the SSC but more the actin-myosin crossbridges not being at an optimal length for the muscle to contract maximally.
« Last Edit: December 05, 2014, 06:19:03 pm by MattA »

ChrisM

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I can't static stretch before training, lifting or playing...im not bouncy at all. Good dynamic warmup and just moving around til I get a sweat broke seems to be the best for me. I only static stretch post activity. 
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