what is reliable and valid method of measuring hamstring muscle length?
objectively.
as tool used in research to measure the outcome of interventions used for increasing hamstring length or flexibility.
Hi Shakil,
The literature shows that there are four different types, however I know two of them. These methods are used to measure the muscle length or flexibility, but you should the method that most applied in your research. I) passive straight leg raise (SLR) with the pelvis and opposite thigh stabilized with straps; 2) Passive SIR with the low back flat and, if needed, the opposite thigh slightly flexed and supported on pillows; 3) active knee extension with the hip at 90" (AKE); and 4) passive knee extension with the hip at 90" (PKE).
I hope this help you,
http://www.ncbi.nlm.nih.gov/pubmed/18550977
It really depends on what question you are trying to address. You must be clear that, given the method, you could be measuring muscle-tendon unit length, muscle belly length, muscle fascicle length, muscle sarcomere length or some combination of them. If you're just trying to establish a valid method, it may not matter. Sorry I can't provide more information without knowing what you want to do.
Hi Shakil,
First of all look at the Prof. Lieber's suggestion. It's the best clue for your work. With that concern, probably the attached paper would be useful for you.
Best regards,
Ali
Hi Syed Shakil Ur Rehman
I have done a research by checking Hamstring flexibility with two methods
You can find it in following link
Article Evaluation of flexibility with Canadian Trunk Forward Flexio...
Not sure that these mechanical properties would covert to determining a "length." As I mentioned in the 1/14/16 post, it really depends on the question you're asking...
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