dear Victor

You can design a device such as Next and the following site may help you

https://www.youtube.com/watch?v=M7Oyq04lp5A

https://www.youtube.com/watch?v=Gnu94B6Edrs

https://books.google.com.eg/books?id=FXGu5iFB37kC&pg=PA187&lpg=PA187&dq=Measure+the+strength+of+the+kick&source=bl&ots=U-T1PTyK9_&sig=wXwM1iZqRRKmXPhE3eAZN30YtjA&hl=ar&sa=X&ved=0ahUKEwjGpILu_cDMAhXLIMAKHV8OA4UQ6AEIRjAG#v=onepage&q=Measure%20the%20strength%20of%20the%20kick&f=false

Dear Victor

You can use Adidas smart ball

http://m.global.adidas.com/micoach-smart-ball/G83963.html

I think it will give you a feedback for what you looking for.

My best wishes

Emad

Hi Victor,

It really depends on whether you mean mechanical power or an outcome measure such as maximal foot or ball velocity.

To measure mechanical power you will most likely need a force platform and/or motion analysis system. You could then measure either lower limb power (using something like a CMJ) or power during the actual kicking motion itself.

For ball velocity - there are some cheaper commercial options such as the  Adidas SmartBall referred to above - although I have not seen this particular method validated against motion analysis techniques (e.g. Vicon/ Qualisys etc).

Simon

Thanks Hamdy, Emad and Simon. 

Now we are analyzing what procedure to use based on these you suggested as well as on those we had already found previously. Possibly we will decide to create some mechanism with dynamometry, but using the real gesture of the kick, like those developed for wrestlers.

Thanks a lot.

Victor Hugo

Great, glad to offer some help.

Just another pointer,  to remember  that during maximal kicking not all forces which act to accelerate the lower leg and foot are supplied directly by the muscles but from 'motion-dependent' or 'interactive' forces as well, which you would have to take into account if performing dynamometry!

Thanks

Simon