We need normal or reference values for isometric knee extension at 60° (Biodex system - no weight correction). Does someone know where to find those (Biodex company has none)? Or maybe someone has a large dataset (healthy adults, mainly elderly 50-75 range)?
hThere are several studies related to isometric knee extension values at 60 deg. However, several studies have shown low reliability scores. One of the problem is the ensuring the reliability of the knee flexion angle. There is typically posterior movement of the instantaneous center of movement and there is a significant need to control the trunk and lower extremity movement. One study by Katoh and Yamaski J Phys Ther Sci 2009 provides some information regarding the need and methods to standardize and limit accessory movem
Thanks Paul. My question was not about reliablity though but about reference or normal values specifically for isometric knee extension at 60° - so if you would be willing to share those refs that woould be great.
You may want to contact Biodex directly, they may have some information regarding normative data. Biodex phone 1-800-224-6334. Good Luck
Of course I tried Biodex but they couldn't help me unfortunately. Thanks for the advice anyway!
You may want to look at Article Isokinetic and isometric muscle strength in a healthy popula...
they have done 65 deg.Best
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