Table 3 Description of the data stored in the “GRF_*.csv” files. “*” for the associated file name is a placeholder for “right” and “left” (adapted from Horsak et al.35).

From: Gutenberg Gait Database, a ground reaction force database of level overground walking in healthy individuals

Variables

Associated file

Format

Dimension

Unit

Description

Vertical GRF

GRF_F_V-RAW_*.csv

double

1 × n

Newton

Unprocessed vertical ground reaction force

Anterior-posterior GRF

GRF_F_AP-RAW_*.csv

double

1 × n

Newton

Unprocessed breaking and propulsive shear force

Medio-lateral GRF

GRF_F_ML_RAW_*.csv

double

1 × n

Newton

Unprocessed medio-lateral shear force

COP anterior-posterior

GRF_COP_AP_RAW_*.csv

double

1 × n

Meter

Unprocessed COP coordinate in walking direction

COP medio-lateral

GRF_COP_ML_RAW_*.csv

double

1 × n

Meter

Unprocessed COP coordinate in medio-lateral direction

Vertical GRF

GRF-F_V_PRO_*.csv

double

1 × n

Multiple of body weight

Processed vertical ground reaction force

Anterior-posterior GRF

GRF_F_AP_PRO_*.csv

double

1 × n

Multiple of body weight

Processed breaking and propulsive shear force

Medio-lateral GRF

GRF-F_ML_PRO_*.csv

double

1 × n

Multiple of body weight

Processed medio-lateral shear force

COP anterior-posterior

GRF_COP_AP_PRO_*.csv

double

1 × n

Meter

Processed COP coordinate in walking direction

COP medio-lateral

GRF_COP_ML_PRO_*.csv

double

1 × n

Meter

Processed COP coordinate in medio-lateral direction

Walking Speed

GRF_walking_speed.csv

double

1 × n

\(\frac{m}{s}\)

Measured walking speed

  1. n is either the number of frames during one step across the force plate for the unprocessed data (“RAW”) or a time-normalized vector of 101 points for the
  2. processed (“PRO”) data. Note that the first four columns of each file hold the DATASET_ID, SUBJECT_ID, SESSION_ID, and TRIAL_ID.