Muscle twitch times

Good afternoon.

times for lower limb muscles. Much of the literature I have retrieved is
specific to the upperlimb or hand, however, some articles draw comparison
to certain lower limb muscles (Gastroc medial head, soleus, TA). I have
been unable to find t-times for the following muscles which I require for
some EMG sofware I'm writing.

If anyone could point me toward some further literature in my search for
t-times for following muscles I'd be appreciative.