University of Minnesota Department of Kinesiology, Affordance Perception-Action Laboratory
Stoffregen, Thomas A (firstname.lastname@example.org)
This dataset contains the raw center of pressure data collected on the Enrichment Voyage (www.semesteratsea.org) on an AMTI (Advanced Mechanical Technology, Inc.) force plate. The data was collected across two days from 18 participants. There were two conditions (the near condition and the far condition) split evenly across six trials in a randomized order. In the trials of the near condition, participants stood on the force plate with their hands comfortably on their sides with their shoes on. They maintained their gaze on a tripod located 50 cm from their heel for the duration of the trial. In the trials of the far condition, everything remains the same, except that the tripod was removed, and participants were instructed to look at the horizon. Trials were 60 seconds long.
This csv file contains the raw center of pressure data measured in centimeter (cm). They were collected on an AMTI force plate across two days from 18 participants. Participant 1-11 participated on day 1. Participant 12-18 participated on day 2. Participant 17 discontinued mid study and the data was excluded from analysis. Each column is a time series evenly distributed across the duration of a trial (60 seconds). Each participant took part in 6 trials: 3 trials for the far condition and 3 trials for the near condition. Each trial yielded two columns of data for a participant. One column of data recorded the movement in the mediolateral (ML) axis, and the other column recorded the movement in the anterior-posterior axis (AP). The AP and ML axes act as coordinates for the x-y location of the center of pressure on the force plate. The columns in the csv file are ordered as thus: The first three columns are about P1 (Participant 1) for the ML axis in the far condition. The next three columns are about P2 for the ML axis in the far condition. The same pattern goes on until we reached Participant 18. Then the sequence repeats for the AP axis in the far condition, then for the ML axis in the near condition, and finally for the AP axis in the near condition.
Munafo, J., Wade, M. G., Stergiou, N., & Stoffregen, T. A. (2016). The rim and the ancient mariner: The nautical horizon affects postural sway in older adults. PLOS ONE, December 14, 2016.
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Munafo, Justin G; Wade, Michael G; Stoffregen, Thomas A; Stergiou, Nicholas.
(2016). The Center of Pressure Data from "The Rim and Ancient Mariner: The Nautical Horizon Affects Postural Sway in Older Adults".
Retrieved from the Data Repository for the University of Minnesota,