Long Term Movement Monitoring Database

This dataset and its collection methods are described in

A. Weiss, M. Brozgol, M. Dorfman, T. Herman, S. Shema, N. Giladi, J.M. Hausdorff, Does the Evaluation of Gait Quality During Daily Life Provide Insight Into Fall Risk? : A Novel Approach Using 3-Day Accelerometer Recordings. Neurorehabil Neural Repair, 17 June 2013, DOI: 10.1177/1545968313491004.

The data set is also used in

E.A.F. Ihlen, A. Weiss, J.L. Helbostad, J.M. Hausdorff, The Discriminant Value of Phase-Dependent Local Dynamic Stability of Daily Life Walking in Older Adult Community-Dwelling Fallers and Nonfallers. BioMed Research International, vol. 2015, Article ID 402596. doi:10.1155/2015/402596.

When referencing this material, please include the standard citation for PhysioNet:

Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation 101(23):e215-e220 [Circulation Electronic Pages; http://circ.ahajournals.org/cgi/content/full/101/23/e215]; 2000 (June 13).

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

Subjects

Seventy-one community-living elder adults (mean age = 78.36 ± 4.71 years; range = 65-87 years) were studied. Subjects were included if they were not previously clinically diagnosed with any gait or balance disorders, and if they were cognitively intact, with a Mini-Mental State Examination score above 24 points. Subjects were classified as fallers and nonfallers based on their self-report of previous falls. If subjects had at least 2 falls in the past year, they were considered fallers, otherwise they were considered non-fallers.

Experimental Procedure

The subjects underwent multiple protocols and evaluations:

  1. Clinical and Traditional Fall Risk Assessment: Functional performance based assessments were performed in the laboratory including the Dynamic Gait Index (DGI), the Berg Balance Scale (BBS), the Timed Up and Go test (TUG), and the Four Square Step Test (FSST). The Mini Mental State Examination (MMSE) and the Activities-specific Balance Confidence scale (ABC) were also performed. The results of these afforementioned tests can be found from column 29 of the ClinicalDemogData_COFL.xlsx spreadsheet.
  2. Gait assessment in the Lab: Participants walked for 1 minute at a comfortable, self-selected speed while wearing a gait belt. A 3D accelerometer was worn on the lower back to quantify gait using previously validated methods. The accelerometer files recordings of these tests can be found in the LabWalks directory in MIT format.
  3. Three-day Activities of Daily Living Assessment: After performing tests in the laboratory, participants were asked to wear a 3D accelerometer on their lower back for 3 consecutive days (except during activities like showering or swimming). Subjects received a diary for tracking when and why they took off and put on the device, shown in the ReportHome75h.xlsx spreadsheet. These are the main recordings of this database and can be found in MIT format below.

Files

  1. General Information Files
    • The ClinicalDemogData_COFL.xlsx spreadsheet contains information about the subjects such as their age, gender, and how many times they fell within the last year, and the results of the performed clinical tests.
    • The ReportHome75h.xlsx spreadsheet contains self-reported events by the subjects regarding when and why they put on and removed their accelerometers over their three day recordings.
  2. High Resolution Accelerometer Recording Files
    • The three day 3D accelerometer recordings are in standard MIT format, with each one containing a binary signal (.dat) file and a corresponding header (.hea)file used to interpret the signals. The file names are in the form CO0NN for non-fallers or FO0NN for fallers, where NN is the subject number for that group.
    • The 1 minute lab walk recordings within the LabWalks directory are in the same format as the three day recordings described above. The file names are also in a similar form.
Icon  Name                        Last modified      Size  Description
[DIR] Parent Directory - [   ] CO001.dat 19-May-2016 11:43 196M digitized signal(s) [   ] CO001.hea 14-Jun-2016 11:11 434 header file [   ] CO002.dat 19-May-2016 11:44 309M digitized signal(s) [   ] CO002.hea 14-Jun-2016 11:11 431 header file [   ] CO003.dat 19-May-2016 11:44 309M digitized signal(s) [   ] CO003.hea 14-Jun-2016 11:11 437 header file [   ] CO004.dat 19-May-2016 11:44 309M digitized signal(s) [   ] CO004.hea 14-Jun-2016 11:11 441 header file [   ] CO005.dat 19-May-2016 11:44 298M digitized signal(s) [   ] CO005.hea 14-Jun-2016 11:11 438 header file [   ] CO006.dat 19-May-2016 11:44 309M digitized signal(s) [   ] CO006.hea 14-Jun-2016 11:11 437 header file [   ] CO007.dat 19-May-2016 11:44 309M digitized signal(s) [   ] CO007.hea 14-Jun-2016 11:11 439 header file [   ] CO008.dat 19-May-2016 11:45 309M digitized signal(s) [   ] CO008.hea 14-Jun-2016 11:11 441 header file [   ] CO009.dat 19-May-2016 11:45 309M digitized signal(s) [   ] CO009.hea 14-Jun-2016 11:11 437 header file [   ] CO010.dat 19-May-2016 11:45 309M digitized signal(s) [   ] CO010.hea 14-Jun-2016 11:11 433 header file [   ] CO011.dat 19-May-2016 11:46 271M digitized signal(s) [   ] CO011.hea 14-Jun-2016 11:11 435 header file [   ] CO012.dat 19-May-2016 11:46 309M digitized signal(s) [   ] CO012.hea 14-Jun-2016 11:11 439 header file [   ] CO013.dat 19-May-2016 11:47 309M digitized signal(s) [   ] CO013.hea 14-Jun-2016 11:11 441 header file [   ] CO014.dat 19-May-2016 11:47 235M digitized signal(s) [   ] CO014.hea 14-Jun-2016 11:11 439 header file [   ] CO015.dat 19-May-2016 11:48 309M digitized signal(s) [   ] CO015.hea 14-Jun-2016 11:11 441 header file [   ] CO016.dat 19-May-2016 11:48 268M digitized signal(s) [   ] CO016.hea 14-Jun-2016 11:11 441 header file [   ] CO017.dat 19-May-2016 11:49 309M digitized signal(s) [   ] CO017.hea 14-Jun-2016 11:11 443 header file [   ] CO018.dat 19-May-2016 11:49 291M digitized signal(s) [   ] CO018.hea 14-Jun-2016 11:11 440 header file [   ] CO019.dat 19-May-2016 11:50 266M digitized signal(s) [   ] CO019.hea 14-Jun-2016 11:11 438 header file [   ] CO020.dat 19-May-2016 11:50 309M digitized signal(s) [   ] CO020.hea 14-Jun-2016 11:11 439 header file [   ] CO021.dat 19-May-2016 11:51 309M digitized signal(s) [   ] CO021.hea 14-Jun-2016 11:11 443 header file [   ] CO022.dat 19-May-2016 11:51 296M digitized signal(s) [   ] CO022.hea 14-Jun-2016 11:11 434 header file [   ] CO023.dat 19-May-2016 11:52 305M digitized signal(s) [   ] CO023.hea 14-Jun-2016 11:11 433 header file [   ] CO024.dat 19-May-2016 11:52 303M digitized signal(s) [   ] CO024.hea 14-Jun-2016 11:11 434 header file [   ] CO025.dat 19-May-2016 11:53 177M digitized signal(s) [   ] CO025.hea 14-Jun-2016 11:11 445 header file [   ] CO027.dat 19-May-2016 11:53 207M digitized signal(s) [   ] CO027.hea 14-Jun-2016 11:11 443 header file [   ] CO028.dat 19-May-2016 11:54 309M digitized signal(s) [   ] CO028.hea 14-Jun-2016 11:11 459 header file [   ] CO028_n.dat 19-May-2016 11:54 309M digitized signal(s) [   ] CO029.dat 19-May-2016 11:54 309M digitized signal(s) [   ] CO029.hea 14-Jun-2016 11:11 452 header file [   ] CO029_n.dat 19-May-2016 11:54 309M digitized signal(s) [   ] CO030.dat 19-May-2016 11:54 177M digitized signal(s) [   ] CO030.hea 14-Jun-2016 11:11 439 header file [   ] CO031.dat 19-May-2016 11:55 309M digitized signal(s) [   ] CO031.hea 14-Jun-2016 11:11 441 header file [   ] CO032.dat 19-May-2016 11:55 282M digitized signal(s) [   ] CO032.hea 14-Jun-2016 11:11 436 header file [   ] CO035.dat 19-May-2016 11:56 302M digitized signal(s) [   ] CO035.hea 14-Jun-2016 11:11 437 header file [   ] CO036.dat 19-May-2016 11:56 300M digitized signal(s) [   ] CO036.hea 14-Jun-2016 11:11 428 header file [   ] CO037.dat 19-May-2016 11:57 294M digitized signal(s) [   ] CO037.hea 14-Jun-2016 11:11 425 header file [   ] CO038.dat 19-May-2016 11:58 278M digitized signal(s) [   ] CO038.hea 14-Jun-2016 11:11 445 header file [   ] CO038_2.dat 19-May-2016 11:57 277M digitized signal(s) [   ] CO039.dat 19-May-2016 11:58 302M digitized signal(s) [   ] CO039.hea 14-Jun-2016 11:11 434 header file [   ] CO040.dat 19-May-2016 11:59 308M digitized signal(s) [   ] CO040.hea 14-Jun-2016 11:11 436 header file [   ] CO041.dat 19-May-2016 11:59 309M digitized signal(s) [   ] CO041.hea 14-Jun-2016 11:11 434 header file [   ] CO042.dat 19-May-2016 12:00 309M digitized signal(s) [   ] CO042.hea 14-Jun-2016 11:11 436 header file [   ] CO044.dat 19-May-2016 12:00 300M digitized signal(s) [   ] CO044.hea 14-Jun-2016 11:11 434 header file [   ] ClinicalDemogData_COFL.xlsx 20-Jun-2016 09:38 30K [   ] DOI 21-Jun-2016 17:27 19 [   ] FL001.dat 19-May-2016 12:01 281M digitized signal(s) [   ] FL001.hea 14-Jun-2016 11:11 439 header file [   ] FL004.dat 19-May-2016 12:01 297M digitized signal(s) [   ] FL004.hea 14-Jun-2016 11:11 439 header file [   ] FL005.dat 19-May-2016 12:02 277M digitized signal(s) [   ] FL005.hea 14-Jun-2016 11:11 438 header file [   ] FL006.dat 19-May-2016 12:02 309M digitized signal(s) [   ] FL006.hea 14-Jun-2016 11:11 438 header file [   ] FL007.dat 19-May-2016 12:03 309M digitized signal(s) [   ] FL007.hea 14-Jun-2016 11:11 441 header file [   ] FL008.dat 19-May-2016 12:03 293M digitized signal(s) [   ] FL008.hea 14-Jun-2016 11:11 439 header file [   ] FL009.dat 19-May-2016 12:03 103M digitized signal(s) [   ] FL009.hea 14-Jun-2016 11:11 444 header file [   ] FL010.dat 19-May-2016 12:04 288M digitized signal(s) [   ] FL010.hea 14-Jun-2016 11:11 442 header file [   ] FL011.dat 19-May-2016 12:04 309M digitized signal(s) [   ] FL011.hea 14-Jun-2016 11:11 440 header file [   ] FL014.dat 19-May-2016 12:05 309M digitized signal(s) [   ] FL014.hea 14-Jun-2016 11:11 437 header file [   ] FL015.dat 19-May-2016 12:06 309M digitized signal(s) [   ] FL015.hea 14-Jun-2016 11:11 443 header file [   ] FL016.dat 19-May-2016 12:06 309M digitized signal(s) [   ] FL016.hea 14-Jun-2016 11:11 431 header file [   ] FL018.dat 19-May-2016 12:07 303M digitized signal(s) [   ] FL018.hea 14-Jun-2016 11:11 436 header file [   ] FL019.dat 19-May-2016 12:07 299M digitized signal(s) [   ] FL019.hea 14-Jun-2016 11:11 441 header file [   ] FL020.dat 19-May-2016 12:08 309M digitized signal(s) [   ] FL020.hea 14-Jun-2016 11:11 438 header file [   ] FL021.dat 19-May-2016 12:08 280M digitized signal(s) [   ] FL021.hea 14-Jun-2016 11:11 440 header file [   ] FL022.dat 19-May-2016 12:09 309M digitized signal(s) [   ] FL022.hea 14-Jun-2016 11:11 437 header file [   ] FL023.dat 19-May-2016 12:09 177M digitized signal(s) [   ] FL023.hea 14-Jun-2016 11:11 450 header file [   ] FL024.dat 19-May-2016 12:10 309M digitized signal(s) [   ] FL024.hea 14-Jun-2016 11:11 443 header file [   ] FL025.dat 19-May-2016 12:10 309M digitized signal(s) [   ] FL025.hea 14-Jun-2016 11:11 436 header file [   ] FL026.dat 19-May-2016 12:11 288M digitized signal(s) [   ] FL026.hea 14-Jun-2016 11:11 432 header file [   ] FL027.dat 19-May-2016 12:11 285M digitized signal(s) [   ] FL027.hea 14-Jun-2016 11:11 449 header file [   ] FL028.dat 19-May-2016 12:11 203M digitized signal(s) [   ] FL028.hea 14-Jun-2016 11:11 437 header file [   ] FL029.dat 19-May-2016 12:12 309M digitized signal(s) [   ] FL029.hea 14-Jun-2016 11:11 443 header file [   ] FL030.dat 19-May-2016 12:13 309M digitized signal(s) [   ] FL030.hea 14-Jun-2016 11:11 438 header file [   ] FL031.dat 19-May-2016 12:13 232M digitized signal(s) [   ] FL031.hea 14-Jun-2016 11:11 435 header file [   ] FL032.dat 19-May-2016 12:13 288M digitized signal(s) [   ] FL032.hea 14-Jun-2016 11:11 438 header file [   ] FL033.dat 19-May-2016 12:14 309M digitized signal(s) [   ] FL033.hea 14-Jun-2016 11:11 435 header file [   ] FL034.dat 19-May-2016 12:15 309M digitized signal(s) [   ] FL034.hea 14-Jun-2016 11:11 443 header file [   ] FL035.dat 19-May-2016 12:15 309M digitized signal(s) [   ] FL035.hea 14-Jun-2016 11:11 429 header file [   ] FL036.dat 19-May-2016 12:16 297M digitized signal(s) [   ] FL036.hea 14-Jun-2016 11:11 435 header file [DIR] LabWalks/ 14-Jun-2016 11:16 - [   ] MD5SUMS 20-Jun-2016 09:57 6.3K [   ] RECORDS 14-Jun-2016 11:27 1.8K list of record names [   ] ReportHome75h.xlsx 20-Jun-2016 09:38 22K [   ] SHA1SUMS 20-Jun-2016 09:59 7.5K [   ] SHA256SUMS 20-Jun-2016 10:04 11K

Questions and Comments

If you would like help understanding, using, or downloading content, please see our Frequently Asked Questions.

If you have any comments, feedback, or particular questions regarding this page, please send them to the webmaster.

Comments and issues can also be raised on PhysioNet's GitHub page.

Updated Friday, 28 October 2016 at 16:58 EDT

PhysioNet is supported by the National Institute of General Medical Sciences (NIGMS) and the National Institute of Biomedical Imaging and Bioengineering (NIBIB) under NIH grant number 2R01GM104987-09.