Terminology : Compliant Leg

I know bugger-all about the subject, but I think you'll find "Mass-Spring-Damper" is just a better model of the mechanics of a "compliant leg".

What about calling it a "second order model of the leg"?

Thanks, but I want a word that general people can also understant its meaning..^^

Thanks so much for your suggestion !

I'm not quite sure what you are after, but somehow 'compliant' does not sound right to me, unless perhaps you are trying to show that the leg obeys the physical laws of a Mass-Spring-Damper system. In that case I would think you need to include at least one hinge.

"compliant |kəmˈplīənt|

adjective
1 inclined to agree with others or obey rules, esp. to an excessive degree; acquiescent : good-humored, eagerly compliant girls. See note at obedient .
• meeting or in accordance with rules or standards : the systems are Y2K compliant.

2 Physics & Medicine having the property of compliance." (I think this is from the Oxford dictionary.)

Or are you referring to 'pliant' (flexible)?

Can you show us in context what you are trying to say? Give us at least a complete sentence; preferably a full paragraph. Then we can offer other ways to express the idea(s).

Unless there is a word used soley in the biomechanics area I think the answer to your questions is that there is no special word. "leg model" or "modelled leg" is about the best I can suggest.

So I think you will have to introduce your readers to you choice of words and then use that. For example: The human leg can be modelled with conventional physics as a hinged two link damped spring mass system. For most/many/our purposes it is sufficient to consider the movement of the modelled leg and forces in the plane that lies perpendicular to the axis of the hinge (edit as required)....For our purposes the modelled leg (or leg model).... etc.

Don't know any better way than the above to handle your problem.

I think the term you might be searching for is "stance phase knee flexion". I don't know that there is just one word to describe the kinetics of the knee during normal gait as the process of taking a step involves a number of biomechanical events which includes flexion and extension. You may need to coin a word to suit your description.