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Dataset

FDA OSEL wearables-for-gait

smartphone IMU vs reference IMU + pressure walkway (sample only on GitHub)

IMURaw waveforms
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A smartphone IMU gait dataset from the FDA (Nyman, Watkinson, Patwardhan, Kontson) in which 20 healthy participants walked normally and with obstacle avoidance, four passes each, over a 16 ft pressure walkway. iPhone and Android phones were placed at the lower back or right lateral thigh in five orientations (0 to 180 degrees) and time-synchronised to reference IMUs and the walkway, all at 100 Hz; 370 of 400 collected trials remain after data loss. The GitHub repository (CC0) holds the MATLAB synchronisation code and a one-participant sample.

At a glance
Type
Dataset
Host
Not reported
DOI
Not reported
Licence
Not reported
Access
Not reported
Subjects
20
Signals
IMU
PPG sites
None
Setting
Not reported
Wrist
No
Raw waveforms
Yes
Tasks
Human activity recognition
Updated
Oct 31, 2026

Original description

GitHub repository established to house support code and raw data for PhysioNet database consisting of time-synchronized raw smartphone IMU, reference (ground truth) IMU, and pressure-sensing walkway data collected during normal gait and obstacle avoidance gait with two different smartphones placed at varying positions and orientations on the body.

Verbatim fromGitHub· Repository licence: CC0-1.0

FDA OSEL wearables-for-gait: ChatPPG research summary card

Key numbers

20
Subjects
1
Reference labels
ACTIVITY

How it works

How FDA OSEL wearables-for-gait works: Devices & body sites → Signals recorded → TasksDevices & body sites: None (PPG site). Signals recorded: FDA OSEL wearables-for-gait, 20 subjects, signals IMU. Tasks: Activity recognition.Devices & body sitesNone: PPG siteNonePPG siteSignals recordedFDA OSEL wearables-for-gait20 subjectsxyzIMUTasksActivity recognitionActivity recognition

No model in the hub reports results on this dataset yet.

Reference labels
activity

Cite

No citation metadata yet.

Cite the ChatPPG record

Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.

APA

ChatPPG. (2026). FDA OSEL wearables-for-gait: dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/fda-gait-smartphone-imu

BibTeX
@misc{chatppg_dataset_fda_gait_smartphone_imu,
  author       = {{ChatPPG}},
  title        = {{FDA OSEL wearables-for-gait: dataset record}},
  year         = {2026},
  month        = oct,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/fda-gait-smartphone-imu}},
  note         = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}
CITATION.cff
cff-version: 1.2.0
message: "If you use this resource, please cite it as below."
type: dataset
title: "FDA OSEL wearables-for-gait: dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/fda-gait-smartphone-imu"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-10-31"

History

  1. Record updated

Same tasks, signals and research

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