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Session{1...17, 20...40}_touchdown_liftoff.csv
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Measured touchdown phase of slow leg and liftoff phase of fast leg 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.

Touchdown phase of slow leg and liftoff phase of fast leg during 10 steps in each belt speed condition. 
 - 1st col: touchdown phase of slow leg during slow tied configuration 1 [rad]
 - 2nd col: liftoff phase of fast leg during slow tied configuration 1 [rad]
 - 3rd col: touchdown phase of slow leg during fast tied configuration [rad]
 - 4th col: liftoff phase of fast leg during fast tied configuration [rad]
 - 5th col: touchdown phase of slow leg during slow tied configuration 2 [rad]
 - 6th col: liftoff phase of fast leg during slow tied configuration 2 [rad]
 - 7th col: touchdown phase of slow leg during split-belt configuration [rad]
 - 8th col: liftoff phase of fast leg during split-belt configuration [rad]
