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Research Output

2019

Motor learning deficits in Parkinson's disease (PD) and their effect on training response in gait and balance: A narrative review

Olson, M., Lockhart, T. & Lieberman, A., Jan 1 2019, In : Frontiers in Neurology. 10, FEB, 62.

Research output: Contribution to journalReview article

Open Access
6 Scopus citations

Nicotine bitartrate reduces falls and freezing of gait in Parkinson disease: A reanalysis

Lieberman, A., Lockhart, T. E., Olson, M. C., Smith Hussain, V. A., Frames, C. W., Sadreddin, A., McCauley, M. & Ludington, E., Jan 1 2019, In : Frontiers in Neurology. 10, MAY, 424.

Research output: Contribution to journalArticle

Open Access
4 Scopus citations
2018

Dynamical properties of postural control in obese community-dwelling older adults

Frames, C. W., Soangra, R., Lockhart, T., Lach, J., Ha, D. S., Roberto, K. A. & Lieberman, A., Jun 1 2018, In : Sensors (Switzerland). 18, 6, 1692.

Research output: Contribution to journalArticle

4 Scopus citations
1 Scopus citations

Motor subtypes of Parkinson’s disease can be identified by frequency component of postural stability

Rezvanian, S., Lockhart, T., Frames, C., Soangra, R. & Lieberman, A., Apr 5 2018, In : Sensors (Switzerland). 18, 4, 1102.

Research output: Contribution to journalArticle

2 Scopus citations

PREDICTION of the SPATIO-TEMPORAL GAIT PARAMETERS USING INERTIAL SENSOR

Liu, J., Lockhart, T. & Kim, S., Jan 1 2018, (Accepted/In press) In : Journal of Mechanics in Medicine and Biology.

Research output: Contribution to journalArticle

2017

Basins of attraction in human balance

Smith, V. A., Lockhart, T. & Spano, M. L., Dec 1 2017, In : European Physical Journal: Special Topics. 226, 15, p. 3315-3324 10 p.

Research output: Contribution to journalArticle

3 Scopus citations

Dual-Task Does Not Increase Slip and Fall Risk in Healthy Young and Older Adults during Walking

Soangra, R. & Lockhart, T., Jan 1 2017, In : Applied Bionics and Biomechanics. 2017, 1014784.

Research output: Contribution to journalArticle

5 Scopus citations

Effects of lateral stepping gait and dual tasking during treadmill walking in healthy young and older adults

Soangra, R. & Lockhart, T., Jan 1 2017, 54th Annual Rocky Mountain Bioengineering Symposium, RMBS 2017 and 54th International ISA Biomedical Sciences Instrumentation Symposium 2017. International Society of Automation (ISA), Vol. 2017-March.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Low and high frequency fluctuations in center of pressure signals can detect postural deficits in idiopathic Parkinson’s disease patients

Frames, C. W., Lockhart, T., Smith, V., Olson, M. & Lieberman, A., Jan 1 2017, 54th Annual Rocky Mountain Bioengineering Symposium, RMBS 2017 and 54th International ISA Biomedical Sciences Instrumentation Symposium 2017. International Society of Automation (ISA), Vol. 2017-March.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lower extremity muscle fatigue influences nonlinear variability in trunk accelerations

Soangra, R., Moon, S., Rezvanian, S. & Lockhart, T., Jan 1 2017, 54th Annual Rocky Mountain Bioengineering Symposium, RMBS 2017 and 54th International ISA Biomedical Sciences Instrumentation Symposium 2017. International Society of Automation (ISA), Vol. 2017-March.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Overground walking along with counting backwards influences movement variability in healthy young and older adults

Soangra, R. & Lockhart, T., Jan 1 2017, 54th Annual Rocky Mountain Bioengineering Symposium, RMBS 2017 and 54th International ISA Biomedical Sciences Instrumentation Symposium 2017. International Society of Automation (ISA), Vol. 2017-March.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Toward an objective method to classify tremor dominant and postural instability and gait difficulty subtypes of Parkinson’s disease: A pilot study

Rezvanian, S., Lockhart, T., Frames, C. & Soangra, R., Jan 1 2017, 54th Annual Rocky Mountain Bioengineering Symposium, RMBS 2017 and 54th International ISA Biomedical Sciences Instrumentation Symposium 2017. International Society of Automation (ISA), Vol. 2017-March.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2016

State of science: occupational slips, trips and falls on the same level

Chang, W. R., Leclercq, S., Lockhart, T. & Haslam, R., Mar 31 2016, (Accepted/In press) In : Ergonomics. p. 1-23 23 p.

Research output: Contribution to journalArticle

36 Scopus citations

Towards real-time detection of freezing of gait using wavelet transform on wireless accelerometer data

Rezvanian, S. & Lockhart, T., Apr 2 2016, In : Sensors (Switzerland). 16, 4, 475.

Research output: Contribution to journalArticle

33 Scopus citations
2015

Aging effect on detectability, criticality and urgency under various auditory conditions

Ghosh, A. A., Lockhart, T. & Liu, J., May 1 2015, In : Transportation Research Part F: Traffic Psychology and Behaviour. 31, p. 25-35 11 p.

Research output: Contribution to journalArticle

1 Scopus citations

Classifying step and spin turns using wireless gyroscopes and implications for fall risk assessments

Fino, P. C., Frames, C. W. & Lockhart, T., 2015, In : Sensors (Switzerland). 15, 5, p. 10676-10685 10 p.

Research output: Contribution to journalArticle

12 Scopus citations
17 Scopus citations

Comparing Postural Stability Entropy Analyses to Differentiate Fallers and Non-fallers

Fino, P., Mojdehi, A., Adjerid, K., Habibi, M., Lockhart, T. & Ross, S., Oct 13 2015, In : Annals of Biomedical Engineering.

Research output: Contribution to journalArticle

17 Scopus citations

Comparison of slip training in vr environment and on moveable platform

Liu, J., Lockhart, T., Parijat, P., McIntosh, J. D. & Chiu, Y. P., 2015, 52nd Annual Rocky Mountain Bioengineering Symposium and 52nd International ISA Biomedical Sciences Instrumentation Symposium 2015. International Society of Automation (ISA), p. 192-200 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Corner height influences center of mass kinematics and path trajectory during turning

Fino, P. C., Lockhart, T. & Fino, N. F., Jan 2 2015, In : Journal of Biomechanics. 48, 1, p. 104-112 9 p.

Research output: Contribution to journalArticle

9 Scopus citations

Effects of Perturbation-Based Slip Training Using a Virtual Reality Environment on Slip-induced Falls

Parijat, P., Lockhart, T. & Liu, J., Apr 1 2015, In : Annals of Biomedical Engineering. 43, 4, p. 958-967 10 p.

Research output: Contribution to journalArticle

17 Scopus citations

EMG and kinematic responses to unexpected slips after slip training in virtual reality

Parijat, P., Lockhart, T. & Liu, J., Feb 1 2015, In : IEEE Transactions on Biomedical Engineering. 62, 2, p. 593-599 7 p., 6915881.

Research output: Contribution to journalArticle

8 Scopus citations
2014

Agreement in gait speed from smartphone and stopwatch for five meter walk in laboratory and clinical environments

Soangra, R. & Lockhart, T. E., Jan 1 2014, 51st Annual Rocky Mountain Bioengineering Symposium, RMBS 2014 and 51st International ISA Biomedical Sciences Instrumentation Symposium 2014. ISA - Instrumentation, Systems, and Automation Society, p. 254-264 11 p. (51st Annual Rocky Mountain Bioengineering Symposium, RMBS 2014 and 51st International ISA Biomedical Sciences Instrumentation Symposium 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

A preliminary study on pace rating using video technology

Suwittayaruk, P., Goubergen, D. V. & Lockhart, T., Nov 1 2014, In : Human Factors and Ergonomics In Manufacturing. 24, 6, p. 725-738 14 p.

Research output: Contribution to journalArticle

1 Scopus citations

Classifying lower extremity muscle fatigue during walking using machine learning and inertial sensors

Zhang, J., Lockhart, T. E. & Soangra, R., 2014, In : Annals of Biomedical Engineering. 42, 3, p. 600-612 13 p.

Research output: Contribution to journalArticle

39 Scopus citations

Development and evaluation of a prior-to-impact fall event detection algorithm

Liu, J. & Lockhart, T. E., Jul 2014, In : IEEE Transactions on Biomedical Engineering. 61, 7, p. 2135-2140 6 p., 6783798.

Research output: Contribution to journalArticle

46 Scopus citations

Development of automated gait assessment algorithm using three inertial sensors and its reliability

Lockhart, T. E., Soangra, R., Chung, C., Frames, C., Fino, P. & Zhang, J., Jan 1 2014, 51st Annual Rocky Mountain Bioengineering Symposium, RMBS 2014 and 51st International ISA Biomedical Sciences Instrumentation Symposium 2014. ISA - Instrumentation, Systems, and Automation Society, p. 297-306 10 p. (51st Annual Rocky Mountain Bioengineering Symposium, RMBS 2014 and 51st International ISA Biomedical Sciences Instrumentation Symposium 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Fall risks assessment among community dwelling elderly using wearable wireless sensors

Lockhart, T. E., Soangra, R. & Frames, C., Jan 1 2014, Signal Processing, Sensor/Information Fusion, and Target Recognition XXIII. SPIE, 90911J. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 9091).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Potential for using smartphone accelerometers in non-laboratory environments

Soangra, R., Lockhart, T. E., Frames, C. W., Zhang, J., Moon, S. H. & Park, J., Jan 1 2014, 2014 International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014. Human Factors an Ergonomics Society Inc., p. 1672-1675 4 p. (Proceedings of the Human Factors and Ergonomics Society; vol. 2014-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reaction moment at the L5/S1 joint during simulated forward slipping with a handheld load

Liu, J., Lockhart, T. & Kim, S., Jan 1 2014, In : International Journal of Occupational Safety and Ergonomics. 20, 3, p. 429-436 8 p.

Research output: Contribution to journalArticle

2 Scopus citations

Recurrence quantitative analysis of postural sway using force plate and smartphone

Chung, C. C., Soangra, R. & Lockhart, T., 2014, Proceedings of the Human Factors and Ergonomics Society. Human Factors an Ergonomics Society Inc., Vol. 2014-January. p. 1271-1275 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Required coefficient of friction during turning at self-selected slow, normal, and fast walking speeds

Fino, P. & Lockhart, T. E., Apr 11 2014, In : Journal of Biomechanics. 47, 6, p. 1395-1400 6 p.

Research output: Contribution to journalArticle

22 Scopus citations

Trunk angular kinematics during slip-induced backward falls and activities of daily living

Liu, J. & Lockhart, T. E., Oct 2014, In : Journal of Biomechanical Engineering. 136, 10, 101005.

Research output: Contribution to journalArticle

4 Scopus citations
2013

Assessment of postural stability using inertial measurement unit on inclined surfaces in healthy adults

Frames, C., Soangra, R. & Lockhart, T. E., Sep 9 2013, 50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013. p. 235-243 9 p. (50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013; vol. 493).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Assessment of postural stability using inertial measurement unit on inclined surfaces in healthy adults

Frames, C., Soangra, R. & Lockhart, T. E., Jan 1 2013, In : Biomedical Sciences Instrumentation. 49, p. 234-242 9 p.

Research output: Contribution to journalArticle

4 Scopus citations
16 Scopus citations

Biomechanics of Human Gait - Slip and Fall Analysis

Lockhart, T. E., Jan 1 2013, Encyclopedia of Forensic Sciences: Second Edition. Elsevier Inc., p. 466-476 11 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Comparison of intra-individual physiological sway complexity from force plate and inertial measurement unit

Soangra, R. & Lockhart, T. E., Sep 9 2013, 50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013. p. 181-187 7 p. (50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013; vol. 493).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Effects of hemodialysis therapy on sit-to-walk characteristics in end stage renal disease patients

Soangra, R., Lockhart, T. E., Lach, J. & Abdel-Rahman, E. M., Apr 1 2013, In : Annals of Biomedical Engineering. 41, 4, p. 795-805 11 p.

Research output: Contribution to journalArticle

15 Scopus citations

Fall risks assessment and fall prediction among community dwelling elderly using wearable wireless sensors

Wu, X., Yeoh, H. T. & Lockhart, T., Dec 13 2013, Proceedings of the Human Factors and Ergonomics Society Annual Meeting, HFES 2013. p. 109-113 5 p. (Proceedings of the Human Factors and Ergonomics Society).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Local dynamic stability associated with load carrying

Liu, J. & Lockhart, T. E., Mar 2013, In : Safety and Health at Work. 4, 1, p. 46-51 6 p.

Research output: Contribution to journalArticle

14 Scopus citations

New perspectives in human movement variability

Lockhart, T. & Stergiou, N., Aug 2013, In : Annals of Biomedical Engineering. 41, 8, p. 1593-1594 2 p.

Research output: Contribution to journalEditorial

5 Scopus citations

Nonfatal occupational falls among U.S. health care workers, 2008-2010

Yeoh, H. T., Lockhart, T. E. & Wu, X., Jan 1 2013, In : Workplace Health and Safety. 61, 1, p. 3-8 6 p.

Research output: Contribution to journalReview article

3 Scopus citations

Non-fatal occupational falls on the same level

Yeoh, H. T., Lockhart, T. E. & Wu, X., Feb 1 2013, In : Ergonomics. 56, 2, p. 153-165 13 p.

Research output: Contribution to journalArticle

27 Scopus citations

Wavelet based automated postural event detection and activity classification with single IMU

Lockhart, T. E., Soangra, R., Zhang, J. & Wu, X., Sep 9 2013, 50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013. p. 225-234 10 p. (50th Annual Rocky Mountain Bioengineering Symposium and 50th International ISA Biomedical Sciences Instrumentation Symposium 2013; vol. 493).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wavelet based automated postural event detection and activity classification with single IMU

Lockhart, T. E., Soangra, R., Zhang, J. & Wu, X., Jan 1 2013, In : Biomedical Sciences Instrumentation. 49, p. 224-233 10 p.

Research output: Contribution to journalArticle

16 Scopus citations
2012

A comparative study for performance evaluation of sit-to-stand task with body worn sensor and existing laboratory methods

Soangra, R. & Lockhart, T. E., Aug 20 2012, 49th Annual Rocky Mountain Bioengineering Symposium and 49th International ISA Biomedical Sciences Instrumentation Symposium. p. 137-144 8 p. (49th Annual Rocky Mountain Bioengineering Symposium and 49th International ISA Biomedical Sciences Instrumentation Symposium).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations