TY - JOUR
T1 - Specificity of surface-EMG on the intrinsic lumbar back muscles
AU - Vink, P.
AU - Daanen, H. A M
AU - Verbout, A.J.
PY - 1989
Y1 - 1989
N2 - The cross-correlation coefficient functions (CCCFs) between twelve bipolar surface electrodes, placed symmetrically on the intrinsic lumbar back muscles (ILBM) were computed in order to estimate the amount of cross-talk. It was found that the CCCF values were mainly influenced by the distance between the electrodes. Other factors, such as static versus dynamic experimental conditions, the activity level, the angle between the dipole axis and the muscle fibres, the ECG, noise, power-line-induced-a.c.-components and resistance of biological material, have less influence, but nevertheless they do change the CCCF values. The absolute maximum in the CCCF can be used to validate EMG-signals. Absolute maxima in the CCCF within the range from 0 to 0.30 are considered as sufficient specific EMG-signals. The technique can be used to optimise the location of electrodes for the selective recording of localised muscle activity.
AB - The cross-correlation coefficient functions (CCCFs) between twelve bipolar surface electrodes, placed symmetrically on the intrinsic lumbar back muscles (ILBM) were computed in order to estimate the amount of cross-talk. It was found that the CCCF values were mainly influenced by the distance between the electrodes. Other factors, such as static versus dynamic experimental conditions, the activity level, the angle between the dipole axis and the muscle fibres, the ECG, noise, power-line-induced-a.c.-components and resistance of biological material, have less influence, but nevertheless they do change the CCCF values. The absolute maximum in the CCCF can be used to validate EMG-signals. Absolute maxima in the CCCF within the range from 0 to 0.30 are considered as sufficient specific EMG-signals. The technique can be used to optimise the location of electrodes for the selective recording of localised muscle activity.
UR - http://www.scopus.com/inward/record.url?scp=38249026533&partnerID=8YFLogxK
U2 - 10.1016/0167-9457(89)90024-9
DO - 10.1016/0167-9457(89)90024-9
M3 - Article
AN - SCOPUS:38249026533
SN - 0167-9457
VL - 8
SP - 67
EP - 78
JO - Human Movement Science
JF - Human Movement Science
IS - 1
ER -