The Powerlifter's Injuries Justin Keogh BHMS (hons)

[nate225]

A study done by Natenemesis covering PLing Injuries. Worth a read.

http://www.powerhousegym.co.nz/articles ... juries.pdf

[vracula]

good read,thanks for the link mate.

[Grover]

:nod: + 1

Personally never did good mornings but will miss the bent over row!

Interesting re the behind the neck exercises considering in a thread already!

[nate225]

:nod: + 1

Personally never did good mornings but will miss the bent over row!Interesting re the behind the neck exercises considering in a thread already!

The relative risk of injury (as indicated by the compressive and shear forces) was greatest in the straight-legged good morning and the bent-over row, even though their potential to increase lower back strength, as indicated by the erector spinae force, was less than that of the other exercises.

Because the risk-to-benefit ratio for the straightlegged good morning and the bent-over row appears to be too high, these are two exercises you should scrap from your training.

GM reference was to stiff legged GM's - kinda like the ones seen in a pump class! :grin: We utillise a number of stance GM's none of which are done with stiff legs (also our SL DL are done with 'soft knees').

Unsure if the study is talking about Stiff leg Bent over rows or bent over rows in general? In the same bent knee stance as we do our GMs we also do heavy bar rows. Maybe I'll get Justin to clarify his veiws on this?

[Ronin]

GM reference was to stiff legged GM's - kinda like the ones seen in a pump class! :grin: We utillise a number of stance GM's none of which are done with stiff legs (also our SL DL are done with 'soft knees').

Unsure if the study is talking about Stiff leg Bent over rows or bent over rows in general? In the same bent knee stance as we do our GMs we also do heavy bar rows. Maybe I'll get Justin to clarify his veiws on this?

Just to clarify, are you referring to having the knees "unlocked" or actually bending them a fair way? When I do either GMs or BO Rows, I tend to just unlock the knees but still keep the legs fairly straight (but not stiff).

[Dr Squat]

I wouldn't be getting too carried away with the research. With respect, there is limited data supporting the findings.

[nate225]

I wouldn't be getting too carried away with the research. With respect, there is limited data supporting the findings.

7 studies with approx. 370 PLers involved, thats 1 PLer for every federation in America, or alternately 10 times the number of PLers in New Zealand! :pfft: :grin:

I think I took part in one of those studies from memory, there was a survey that went out a few years back. Take what you want from the research, I ignored the BNP stuff for the most part (as risk vs. reward shown in studies seemed to differ for me when I was more bench focused), but I don't use stiff legs in almost any lift now (def. not GM's, BO Rows, or SLDL).

[Dr Squat]

Just to clarify, wasn't bagging the quality of the research.

[nate225]

Just to clarify, wasn't bagging the quality of the research.

You already did that Doc by saying "with respect".

I'm sure Justin won't take any offence, being a scientist through & through he is well aware of the limitations of sample size.

[Natenemesis]

hi guys, that was written a few years back now hahaha. a few of the recommendations are perhaps "editorial" in nature and i perhaps would not say never do any exercise, but think more about the risk:benefit ratio of various exercises and go from there. I also agree with some of the respondents that how the exercise is done also is an important factor. any thing that increases the horizontal distance of the line of the force to the lower back is likely to increase the risk of lower back injury, so merely being taller with a long trunk can be a problem for some

[Dr Squat]

hi guys, that was written a few years back now hahaha. a few of the recommendations are perhaps "editorial" in nature and i perhaps would not say never do any exercise, but think more about the risk:benefit ratio of various exercises and go from there. I also agree with some of the respondents that how the exercise is done also is an important factor. any thing that increases the horizontal distance of the line of the force to the lower back is likely to increase the risk of lower back injury, so merely being taller with a long trunk can be a problem for some

Awesome Justin. Would be good to get some information on other research you have planned.

[Natenemesis]

here is a reference for a book chapter i wrote that expands on the article of mine that nate posted

Keogh, J. W. L. (2009). Weightlifting. In D. Caine, P. Harmer & M. Schiff (Eds.), The Encyclopaedia of Sports Medicine : The Epidemiology of Injury in Olympic Sports (pp. 336-350). Oxford, England: Blackwell.

you might be able to get a copy from a local library

It looks at reviewing the injury epidemiology of weightlifting, powerlifting and bodybuilding.

I am also planning to have a student do a study on injuries in strongman later this year, so will keep you posted on that