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PostPosted: Sun May 26, 2013 3:34 am 
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Hello,

I'd like to ask 2 simple questions.

Do pullups involve lumbar flexion?

Is it correct that a parallel squat does not involve flexion but a deep squat does?


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PostPosted: Sun May 26, 2013 4:38 am 
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It depends on the persons technique and mobility, but no. Pull-ups with good form DONT cause lumbar flexion.
The squatting has the same. People usually have a depth where lumbar flexion occurs. It migth be in pararrel or even above it. There is no certain depth. It's about the persons ability to move and control, and his range of motion.
You can see when lumbar flexion occurs by filming your squat, or putting a dovel to your spine to mark neutral angles (It should touch your sacrum, upper back and the back of your head.) Or then do a quadruple/kneeling assesment. Take a wide quadruple stance and just lean back and see when your spine flexes. It's easier to watch than read, check this:
http://www.youtube.com/watch?v=0ecdkXfxQUA

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PostPosted: Sun May 26, 2013 6:15 am 
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pull ups have quite a strong anti-extension component, which is not the same as lumbar flexion.

there should not be any flexion of your spine when squatting. If there is, you're squatting too low and/or your technique sucks (it's usually both)

an easy way to stop yourself flexing your back on squats is to have a box set at just above the height where your back rounds, and use that as a gauge for depth; you squat down til you lightly touch the box then stand back up again. The added bonus of that is it keeps your depth consistent.


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PostPosted: Sun May 26, 2013 6:11 pm 
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Then, if the height of the box has you squatting above parallel, you can gradually lower the height while working to keep you form good until you get the squat below parallel.

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PostPosted: Mon May 27, 2013 3:26 am 
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Ok i understand now,

Thankyou everyone :)


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