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Dataset

LTMM

Long Term Movement Monitoring Database (3-day lower-back accelerometer + gyro, 71 older adults, fallers vs non-fallers; PhysioNet, ODC-By 1.0)

IMUPhysioNet
Get data DOI Cite

LTMM (PhysioNet, Hausdorff; Weiss et al. 2013) holds 3-day free-living recordings from a lower-back inertial sensor (McRoberts DynaPort Hybrid, 100 Hz; 3-axis acceleration plus yaw/pitch/roll angular velocity in the WFDB headers) on 71 community-dwelling older adults (65–87 y, mean 78.4; ~65% women), split into fallers (>=2 self-reported falls in the past year) and non-fallers. A 1-minute in-lab walk and clinical fall-risk tests (DGI, BBS, TUG, FSST, MMSE, ABC) are included. 20.8 GB, ODC-By 1.0.

At a glance
Type
Dataset
Host
PhysioNet (opens in a new tab)
DOI
10.13026/C2S59C (opens in a new tab)
Licence
Not reported
Access
Not reported
Subjects
71
Signals
IMU
PPG sites
Not reported
Setting
In the wild, Lab
Wrist
Not reported
Raw waveforms
Not reported
Tasks
Fall DetectionHuman activity recognitionDisease Screening
Models
Papers
Updated
Nov 11, 2026

Original description

The LTMM database contains 3-day 3D accelerometer recordings of 71 elder community residents, used to study gait, stability, and fall risk.

Verbatim fromPhysioNet· Licence: Open Data Commons Attribution License v1.0

LTMM: ChatPPG research summary card

Key numbers

71
Subjects
2
Reference labels
FALL HISTORY, CLINICAL ASSESSMENT

How it works

How LTMM works: Devices & body sites → Signals recorded → TasksSignals recorded: LTMM, 71 subjects, signals IMU. Tasks: Fall detection; Activity recognition; Disease screening.Signals recordedLTMM71 subjectsxyzIMUTasksFall detectionFall detectionActivity recognitionActivity recognitionDisease screeningDisease screening
Reference labels
fall history, clinical assessment

Papers and models using this dataset· 2

Papers

Models

#84 of 158 most-used datasets by published papers and models · #36 of 70 IMU

Cite this dataset

Cite this dataset with the fields recorded here. Check it against the publisher before submitting.

LTMM [Data set]. (n.d.). physionet. https://doi.org/10.13026/C2S59C
@misc{ltmmltmm,
  title         = {{LTMM}},
  howpublished  = {physionet},
  doi           = {10.13026/C2S59C}
}

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). LTMM: dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/ltmm

BibTeX
@misc{chatppg_dataset_ltmm,
  author       = {{ChatPPG}},
  title        = {{LTMM: dataset record}},
  year         = {2026},
  month        = nov,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/ltmm}},
  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: "LTMM: dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/ltmm"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-11-11"

History

  1. Record updated

Same tasks, signals and research

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