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Session{1...17, 20...40}_phase.csv
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Measured relative phases during 10 steps of the experiment. 
Session{1...17, 20...40} means the index of the Session.(Session 18 & 19 do not exist.)
Files are created by Comma-Separated Values format (csv). 
Data of each file are formatted as follows.

Relative phases during 10 steps in each belt speed condition. 
 - 1st col: data during slow tied configuration 1 [rad] 
 - 2nd col: data during fast tied configuration [rad]
 - 3rd col: data during slow tied configuration 2 [rad]
 - 4th col: data during split-belt configuration [rad]




