Hello,

We reported that EMD ranges from 7-122 ms.  Here are some references from a manuscript we wrote a few years ago.  Best of luck with your work.  Tom

Cavanagh PR, Komi PV. Electromechanical delay in human skeletal muscle under concentric and eccentric contractions. Eur J Appl Physiol Occup Physiol. 1979;42(3):159–163.

Grabiner MD. Bioelectric characteristics of the electromechanical delay preceding concentric contraction. Med Sci Sports Exerc. 1986;18(1):37–

43.

Granata KP, Ikeda AJ, Abel MF. Electromechanical delay and reflex response in spastic cerebal palsy. Arch Phys Med Rehabil. 2000;81(7):888–

894.

Laine Santa Maria D. Pre-motor and motor reaction time differences associatedwith stretching of the hamstring muscles. J Mot Beh. 1970;2(3): 163–173.

Moritani T, Berry MJ, Bacharach DW, Nakamura E. Gas exchange parameters, muscle blood flow and electromechanical properties of the plantar flexors. Eur J Appl Physiol Occup Physiol. 1987;56(1):30–37.

Norman RW, Komi PV. Electromechanical delay in skeletal muscle under normal movement conditions. Acta Physiol Scand. 1979;106(3):241–248.

Vos EJ, Harlaar J, van Ingen Schenau GJ. Electromechanical delay during knee extensor contractions. Med Sci Sports Exerc. 1991;23(10):1187–

1193.

Zhou S, Lawson DL, Morrison WE, Fairweather I. Electromechanical delay in isometeric muscle contractions evoked by voluntary, reflex and

electrical stimulation. Eur J Appl Physiol Occup Physiol. 1995;70(2):138–145.

thanks a lot for your answer dear

:)