How to animate the trembling of hands?


my question is not regarding the animation process as such and to apply a modifier to
the according fcurve.
My question is about finding a combinations of modifiers (or maybe a totally different approach
is better???), which results in a believable trembling.

Applying a sinus function results in a far to continuos and predictable trembling.
A noise modifier produces not only a variation in the wavelength but also - and this
makes it unbelievable also - in a wide variation of amplitudes.

How do I need to combine what to acchieve what I want?