Data Sheet
biosignalsplux 
User Manual 
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MCV – MAXIMUM VOLUNTARY CONTRACTION 
The maximum voluntary contraction (MVC) will be calculated for each channel based on 
the EMG maxima of your selected EMG signals. 
The MVC acquisition can also be done in a separate signal acquisition session/file. This 
can be useful to use when doing several signal acquisitions to ensure that the analysis of 
all files and signals are done with the same reference values – the MVC values. 
For this, start an acquisition and acquire your data which are being used as MVC values 
for later analysis and save your acquisition. To use the MVC data from this acquisition in 
another acquisition, click on the document icon in the CALCULATE FROM A FILE INSTEAD 
field  and  select  the  OpenSignals  (r)evolution  file  which  contains  the  MVC  signal  data. 
OpenSignals (r)evolution will then calculate the MVC value from the selected file. 
Select OpenSignals (r)evolution file to calculate MVC values from file 
Each  channel’s  MVC  value  are  listed  in  the  table  below  MAXIMUM  VOLUNTARY 
CONTRACTION. 
MUSCLE ACTIVATION RESULTS 
Click on the PROCESS button to process all signals according to the set configuration and 
all found activations will be visualized in the processed channels (white frames). 
To display all statistical information about one or two specific activations, click on the 
first  activation  (left  mouse  button).  The  white  frame  turns  into  a  blue  frame  and  all 
statistical  information  about  this activation  will  be listed  in the  ACT X  column of  the 
analysis results. When done, select the second activation of your choice by holding the 
CTLR key of your  keyboard  and  click  on the activation  (left  mouse  button).  The  white 
frame turns into a green frame and all statistical information about this activation will be 
listed in the ACT Y column of the analysis results. 
The results table displays general information about the source of this signal (device & 
channel) as well as general information about the duration and times of your acquisition. 
All activation  specific data  is displayed below  the given  general information  (e.g., 
activation number, duration). 










