force multiplier in human body

[CliveBromhall]

Can anybody possibly tell me if they know of any force multiplier levers in the human body. Plenty of examples of distance multipliers, but I'm stuck on finding any example of a part of the body that uses a lever to multiply force!

 

[itsmoked]

Not allowed to help with homework. Sorry.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[CliveBromhall]

thanks, but this is a serious question and I have got a PhD in zoology

 

[itsmoked]

OK.

The muscle(tendon) that lifts your foot is working at a point that would provide a 4 or 5 to one lever against the heal. The angle of approach of this contraction force is very shallow so it probably doesn't provide the full 4,5 to 1 advantage but it's sure not a speed/distance multiplier.

Just try it. You can't even lift your foot very rapidly. You can lower it fast.

BTW I would argue that most the body levers are there for speed multiplication not length multiplication. The speed is what the system needs for the essential dynamics.



Keith Cress
kcress -

http://www.flaminsystems.com

 

[rstupplebeen]

Since with a zoology PhD your human anatamy might be rusty here is the muscle refurred to by Keith.

http://en.wikipedia.org/wiki/Tibialis_anterior_muscle

If you want to impress the ladies with a large tibialis get one of these.

http://www.qfac.com/gear/dard.html

Hope this helps.

Rob Stupplebeen

 

[CliveBromhall]

Thanks guys, the speed argument makes good sense too.

 

[zubaj]

rstubblebeen,

Refurred? Is someone getting refuzzed or rehairified? I think you meant referred.

JZ

 

[rstupplebeen]

zubaj,

Force multiplier not hair multiplier. Got it. Thanks for the value added. I miss you redlining all my stuff.

Rob