Tai Chi, Physiological Complexity, and Healthy Aging—Gait (taichidb)

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Version 1 - April 2017

When referencing this material, please cite:

Wayne PM, Manor B, Novak V, et al. A Systems Biology Approach to Studying Tai Chi, Physiological Complexity and Healthy Aging: Design and Rationale of a Pragmatic Randomized Controlled Trial. Contemporary clinical trials. 2013;34(1):21-34. doi:10.1016/j.cct.2012.09.006. [bib] 
@article{TAICHIDB,
  author  = {Peter M Wayne, Brad Manor, Vera Novak, Madelena D Costa, Jeffrey M Hausdorff, Ary L Goldberger, Andrew C Ahn, Gloria Y Yeh, C-K Peng, Matthew Lough, Roger B. Davis, Mary T Quilty, and Lewis A Lipsitz},
  title   = {A Systems Biology Approach to Studying Tai Chi, Physiological Complexity and Healthy Aging: Design and Rationale of a Pragmatic Randomized Controlled Trial},
  journal = {Contemporary Clinical Trials},
  volume  = {34},
  issue  = {1},
  pages   = {21-34},
  year    = {2013}
}
Gow BJ, Haudorff JM, Manor B, Macklin EM, Wayne PM, et al. Can Tai Chi training impact fractal stride time dynamics, an index of gait health, in older adults? Cross-sectional and randomized trial studies. PloS One. In press.

Please also 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/content/101/23/e215]; 2000 (June 13). [bib] 
@article{PhysioNet,
  author    = {Goldberger, Ary L. and Amaral, Luis A. N.
               and Glass, Leon and Hausdorff, Jeffrey M.
               and Ivanov, Plamen Ch. and Mark, Roger G.
               and Mietus, Joseph E. and Moody, George B.
               and Peng, Chung-Kang and Stanley, H. Eugene},
  title     = {{PhysioBank}, {PhysioToolkit}, and {PhysioNet}:
               Components of a New Research Resource for Complex
               Physiologic Signals},
  journal   = {Circulation},
  publisher = {American Heart Association, Inc.},
  volume    = {101},
  number    = {23},
  year      = {2000},
  month     = {June},
  pages     = {e215--e220},
  doi       = {10.1161/01.CIR.101.23.e215},
  issn      = {0009-7322},
  url       = {http://circ.ahajournals.org/content/101/23/e215}
}

Introduction

The "Tai Chi, Physiological Complexity, and Healthy Aging—Gait" database contains two-channel gait recordings of 87 older adults from the Greater Boston area.

Data Collection

We employed a hybrid study design that included a two-arm randomized clinical trial (RCT) along with an additional observational comparison group. The Tai Chi naïve group included sixty healthy older participants, aged 50–79 years, living within the Greater Boston area, and reporting no regular Tai Chi practice within the past 5 years. Subjects were either randomized to 6 months of Tai Chi or usual care. Subjects came in for a baseline visit along with 3 month and 6 month follow-ups. The Tai Chi expert group consisted of twenty-seven healthy, older, aged 50-79 years, adults currently engaged in an active Tai Chi training regimen, each with at least 5 years of Tai Chi experience. The expert group was tested only at their baseline visit.

Steady-state gait dynamics were assessed during over ground walking at preferred speed. Subjects walked along a long corridor (48m or 23m) that was wide enough (5m) to enable smooth turning. To record consecutive stride-to-stride durations, subjects had foot-switches (Mega Elektronika, Inc) inserted into their shoes, and the ME6000 data acquisition monitor attached to their waist. To collect the sufficient number of steps required for complexity measures, approximately 10 minutes of continuous walking was completed. Some instances had to be recorded in two parts, with file names ending with P1 and P2.

Data Files

The data files are provided in standard WFDB format, named:

where XXX is the subject number, Y is the visit number, and Z is the recording part for instances that had to be recorded in two segments. Group allocation by Subject ID with age, gender, BMI, visit, trail making time, category fluency, hallway length, number of laps, and distance walked, can be found in the accompanying file: TCPCHA_Subjects.csv.

Contributors

This database was contributed by Peter Wayne (pwayne[at]partners.org) and Brian J Gow (bgow[at]bidmc.harvard.edu).

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[   ] S0735_Master_P1.dat     2017-04-24 14:34  1.6M  digitized signal(s)
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[   ] S0735_Master_P2.dat     2017-04-24 14:34  791K  digitized signal(s)
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[   ] S0736_Master.dat        2017-04-24 14:34  2.6M  digitized signal(s)
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[   ] SHA1SUMS                2018-08-29 13:41   22K  
[   ] SHA256SUMS              2018-08-29 13:41   31K  
[TXT] TCPCHA_Subjects.csv     2017-04-24 15:05   26K

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