A public dataset of overground walking kinetics and lower-body kinematics in healthy adult individuals on different days
Description
The dataset comprises raw kinetic and lower-body kinematic data (both in .c3d and .tsv) of eight healthy subjects (6 female, 2 male; M age: 23.5 years, SD 2.3; M body height: 1.75 m, SD 0.08; M body mass: 66.9 kg, SD 7.7) during overground walking. All subjects were without gait pathology and free of lower extremity pain or injuries. The .c3d files are named in the following format: S{subject_id}_D{day_id}_{trial number}_{static/gait}.c3d. Separate text files were generated for the kinematic marker trajetories {.tsv} and kinetic force signals of the first {_f_1.tsv} and second {_f_2.tsv} force plate. When using (any part) of this dataset, please cite this dataset and the original article: Horst, F., Kramer, F., Schäfer, B., Eekhoff, A., Hegen, P., Nigg, B. M., & Schöllhorn, W. I. (2019). A public dataset of overground walking kinetics and lower-body kinematics in healthy adult individuals on different days. Mendeley Data, v1. http://dx.doi.org/10.17632/8kyv4jm759.1 Horst, F., Kramer, F., Schäfer, B., Eekhoff, A., Hegen, P., Nigg, B. M., & Schöllhorn, W. I. (2016). Daily changes of individual gait patterns identified by means of support vector machines. Gait & Posture, 49, 309–314. https://doi.org/10.1016/j.gaitpost.2016.07.073 Please feel free to send us your technical questions, requests and bug reports by email: horst@uni-mainz.de
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Steps to reproduce
The subjects performed 15 gait trials on each of eight days within two weeks, while they did not undergo any intervention. The data acquisition was conducted at the same time each day. The subjects were instructed to walk barefoot at a self-selected speed. In each trial the subjects overall walking distance was approximately 10 m. Kinematic data were recorded using a lower-body marker set consisting of 34 retro reflective markers placed on anatomical landmarks. Nine Oqus 310 infrared cameras (Qualisys AB, Sweden) captured the three-dimensional marker trajectories at a sampling frequency of 250 Hz. The three-dimensional ground reaction forces were recorded by two Kistler force plates (90 x 60 cm; Kistler, Type 9287CA, Switzerland) at a frequency of 1000 Hz. For all trials, the subjects stepped with their right foot on the first force plate and their left foot on the second force plate. The recording was managed in time-synchronization by the Qualisys Track Manager 2.7 (Qualisys AB, Sweden). Two experienced assessors attached the markers and conducted the analysis. Every subject was analysed by the same assessor only. On the first day, each subject performed test trials in order to become accustomed to the experimental setup and to assign a starting point for a walk over the force plates. On each of the following days, four test trials were performed to control the starting point of the walk. This procedure is described to minimize the impact of targeting on the force plates on the observed gait variables. Additionally, the participants were instructed to watch a neutral symbol (smiley) on the opposing wall of the laboratory to direct their attention away from targeting on the force plates and ensure a natural walk with an upright body position.