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Publications

2016
1. Fujimoto, M. and Chou, L-S.: Sagittal plane momentum control during walking in elderly fallers. Accepted to Gait and Posture.

2015
2. Lo, O-Y and Chou, L-S: Effects of different visual attention tasks on obstacle crossing in healthy young adults. Accepted to Biomedical Engineering: Applications, Basis, and Communications.

3. Breloff, S. and Chou, L-S.: Influence of various daily tasks on segmented trunk kinematics. Accepted to Biomedical Engineering: Applications, Basis, and Communications.

4. Howell, D, Osternig, LR, Christie, A and Chou, L-S: Return to physical activity timing and dual-task gait stability are associated two months following concussion. Accepted to Journal of Head Trauma Rehabilitation (doi: 10.1097/HTR.0000000000000176).

5. Lugade, V, Chen, T, Erickson, C, Fujimoto, M, San Juan, J, Karduna, A, Chou, L-S: Comparison of an electromagnetic and optical system during dynamic motion. Biomedical Engineering: Applications, Basis, and Communications 27:05 (DOI: 10.4015/S1016237215500416).

6. Breloff, S. and Chou, L-S.: Quantification of multi-segmental spine movement during gait. Journal of Musculoskeletal Research 18 (2): 1550009-1 – 11, 2015.

7. Lo, O-Y, van Donkelaar, P., and Chou, L-S: Distracting visuospatial attention while approaching an obstacle reduces the toe-obstacle clearance.
Experimental Brain Research 233: 1137-114 (doi: 10.1007/s00221-014-4189-1),

8. Howell, D, Osternig, LR, and Chou, L-S: Monitoring recovery of gait balance control following concussion using an accelerometer. Journal of Biomechanics 48:3364-68, 2015.

9. Xu, X, McGorry, R, Chou, L-S, Lin, J-H, and Chang, C-C: Accuracy of the Microsoft KinectTM for measuring gait parameters during treadmill walking. Gait and Posture 42 145-151, 2015.

10. Howell, D, Osternig, LR, and Chou, L-S: Return to activity after concussion affects dual-task gait balance control recovery. Medicine and Science in Sports and Exercise 47 (4) 673-680, 2015.

11. Howell, D, Osternig, LR, and Chou, L-S: Adolescents demonstrate greater gait balance control deficits after concussion than young adults. The American Journal of Sports Medicine 43 (3): 625-32, 2015.

12. Chen, H-L, Lu, T-W, and Chou, L-S.: Variability of inter-joint coordination increases during divided-attention gait following concussion. Journal of Medical and Biological Engineering, 35 (1): 28-33, 2015.

2014
13. Chiu, S-L, Chang, C-C, and Chou, L-S: Inter-joint coordination of overground versus treadmill walking in young adults. Gait and Posture 41: 316-318, 2014.

14. Becker, J., Pisciotta, E., James, S., Osternig, LR, and Chou, L-S.: Center of pressure trajectory differences between shod and barefoot running. Gait and Posture 40, 504-509, 2014.

15. Lugade, V, Farley, A., Lin, V. and Chou, L-S.: An artificial neural network estimation of gait balance control in the elderly using clinical evaluations. PLOS ONE 9 (5): e97595, May 2014.

16. Miller, N, Yasen, A, Maynard, L, Howell, DR, Chou, L-S, and Christie, A.: Acute and longitudinal changes in motor cortex function following mild traumatic brain injury. Brain Injury 28: 1270-1276, 2014.

17. Howell, DR, Osternig, LR, Koester, M, and Chou, L-S: The effect of cognitive task complexity on gait stability in adolescents following concussion. Experimental Brain Research 232 (6), 1773-82, 2014.

18. Mayr, U, LaRoux, C, Rolheiser, T, Osternig, L, Chou, L-S, and Van
Donkelaar, P: Executive dysfunction assessed with a task-switching task following concussion. PLOS ONE 9 (3):e91379, March 2014.

19. Li, F., Harmer, P., Liu, Y., Chou, L-S: Tai Ji Quan and global cognitive function in older adults with cognitive impairment: a pilot study. Archives of Gerontology and Geriatrics 58 (3): 434-9, 2014.

20. Fujimoto, M. and Chou, L-S.: Region of stability derived by center of mass acceleration better identifies individuals with difficulty in sit-to-stand movement. Annals of Biomedical Engineering 42: 733-741, 2014.

2013
21. Li, F., Harmer, P., Liu, Y., Eckstrom, E., Fitzgerald, K., Stock, R., Chou, L-S.: A randomized controlled trial of patient-reported outcomes with Tai Chi exercise in Parkinson’s Disease. Movement Disorders 29 (4): 539-545, 2014.

22. Li, F., Harmer, P., Stock, R., Fitzgerald, K., Stevens, J., Gladieux, M., Chou, L-S., Carp, K., Voit, J.: Implementing an evidence-based fall prevention program in an outpatient clinical setting. Journal of American Geriatrics Society 61 (12): 2142-9, 2013.

23. Chen, T and Chou, L-S.: Altered center of mass control during sit-to-walk in elderly adults with and without history of falling. Gait and Posture 38: 696-701, 2013.

24. Chiu, S-L, Osternig, LR, and Chou, L-S.: Concussion induces gait inter-joint coordination variability under conditions of divided attention and obstacle crossing. Gait and Posture 38: 717-722, 2013.

25. Fujimoto, M., Hsu, W-L., Woollacott, M., and Chou, L-S.: Weakness in ankle dorsiflexors reduces the ability to restore balance during a stance perturbation in the elderly. Gait and Posture 38: 812-817, 2013.

26. Chen, T, Chang, C-C., and Chou, L-S: Sagittal plane movement strategy and joint kinetics during sit-to-walk in the balance impaired elderly fallers. Clinical Biomechanics 28: 807-812, 2013.

27. Howell, D., Osternig, LR., and Chou, L-S.: Dual-task effect on gait balance control in concussed adolescents. Archives of Physical Medicine and Rehabilitation 94: 1513-20, 2013.

28. Chiu, S-L. and Chou, L-S.: Variability in inter-joint coordination during walking of elderly adults and its association with clinical balance measures. Clinical Biomechanics 28: 454-458, 2013.

29. Howell, D., Osternig, LR, van Donkelaar, P, and Chou, L-S: Effects of concussion on attention and executive function in adolescents. Medicine & Science in Sports & Exercise 45: 1030-1037, 2013.

30. Zhang, X., Fan G., and Chou, L-S: Two-layer dual gait generative models for human motion estimation from a single camera. Image and Vision Computing 31: 473-486. 2013.

31. Hsu, W-L., Chou, L-S., and Woollacott, M.: Age-related changes in joint coordination during balance recovery. Age 35: 1299-1309, 2013.

2012
32. Spaulding, SE, Chen, T., and Chou, L-S: Selection of an above- or below-ankle orthosis for individuals with neuropathic partial foot amputation: a pilot study. Prosthetics & Orthotics International 36 (2): 61- 68 2012.

33. Boonyong, S., Siu, K-C, van Donkelaar, P., Chou, L-S., and Woollacott, M.: Development of postural control during gait in typically developing children: the effects of dual task conditions. Gait and Posture 35: 428-434, 2012.

34. Fujimoto, M and Chou, L-S.: Dynamic balance control during sit-to-stand movement: an examination with the center of mass acceleration. Journal of Biomechanics 45: 543-548, 2012.

35. Chiu, S-L and Chou, L-S.: Effect of walking speed on inter-joint coordination differs between young and elderly adults. Journal of Biomechanics 45: 275-280, 2012.
2011

36. Lugade, V., Lin, V. and Chou, L-S: Center of mass and base of support interaction during gait. Gait and Posture 33: 406-411, 2011.

37. Chen, S-J, Mukherjee, M, and Chou, L-S: Soft tissue movement at the foot during stance phase of walking. Journal of the American Podiatric Medical Association 101: 25-34, 2011.

38. Catena, R.D., van Donkelaar, P., and Chou, L-S.: The effects of attention capacity on dynamic balance control following concussion. Journal of NeuroEngineering and Rehabilitation 8:8, 2011.

2010
39. Klausmeier, V.M., Vipul, L., Jewett, B., and Collis, D., Chou, L-S: Is there faster recovery with an anterior or anterolateral THA? A pilot study. Clinical Orthopaedics and Related Research 468: 533-541, 2010.

40. Chen, C-J and Chou, L-S.: Center of mass position relative to the ankle during walking: a clinically feasible detection method for gait imbalance. Gait and Posture 31: 391-393, 2010.

41. Lugade, V., Wu, A., Jewett, BA., Collis, DK, and Chou, L-S.: Gait asymmetry following an anterior and anterolateral approach to total hip replacement. Clinical Biomechanics 25: 675-680, 2010.

42. Chiu, S-L, Lu, T-W, and Chou, L-S: Altered inter-joint coordination during walking in patients with total hip arthroplasty. Gait and Posture 32: 656-660, 2010.

2009
43. Silsupadol, P., Lugade, V., Shumway-Cook, A., van Donkelaar, P., Chou, L-S., Mayr, U., Woollacott, MH: Effects of single- vs. dual-task training on balance performance in older adults: a double-blind, randomized controlled trial. Archives of Physical Medicine and Rehabilitation 90: 381-387, 2009.

44. Catena, R.D., van Donkelaar, P., Halterman, C.I., and Chou, L-S.: Spatial orientation of attention and obstacle avoidance following concussion. Experimental Brain Research 194: 67-77, 2009.

45. Silsupadol, P., Lugade, V., Shumway-Cook, A., van Donkelaar, P., Chou, L-S., Mayr, U., Woollacott, MH: Training-related Changes in Dual-task Walking Performance of Elderly Persons with Balance Impairment: A Double-blind, Randomized Controlled Trial. Gait and Posture 29: 634-639, 2009.

46. Siu KC, Chou, L-S, Mayr U, van Donkelaar P, Woollacott MH: Attentional mechanisms contributing to balance constraints during gait: the effects of balance impairments. Brain Research 1248:59-67, 2009.

47. Catena, R.D., van Donkelaar, P., and Chou, L-S.: Different gait paradigms distinguish immediate vs. long-term effects of concussion. Journal of NeuroEngineering and Rehabilitation 6:25, 2009.

48. Mandeville, D., Osternig, L.R., Lantz, B.A., Mohler, C.G. and Chou, L-S.: A multivariate statistical ranking of clinical and gait measures before and after total knee replacement. Gait and Posture 30: 197-200, 2009.

49. Mandeville, D., Osternig, and Chou, L-S.: The association between knee flexion, vertical center of mass excursion and lower extremity muscle work for end-stage knee osteoarthritis. Journal of Musculoskeletal Research 12 (2):77-84, 2009.

2008
50. Mandeville, D., Osternig, L.R., Chou, L-S.: The effect of total knee replacement surgery on gait stability. Gait and Posture 27: 103-109, 2008.

51. Siu, K-C, Catena, R.D., Chou, L-S, van Donlelaar, P., Woollacott, M.H.: Effects of secondary task on obstacle avoidance in healthy young adults. Experimental Brain Research 184(1): 115-20, 2008.

52. Mandeville, D., Osternig, L.R., Chou, L-S.: The effect of total knee replacement on knee varus angle and moment during walking and stair ascent. Clinical Biomechanics 23: 1053-1058, 2008.

53. Parker, T.M., Osternig, L.R., van Donkelaar, P., and Chou, L-S.: Gait stability in athletes and non-athletes following concussion. Medical Engineering & Physics 30: 959-967, 2008.

54. Siu, K-C, Lugade, V., Chou, L-S, van Donlelaar, P., Woollacott, M.H.: Dual-task interference during obstacle clearance in healthy and balance-impaired older adults. Journal of Aging Clinical and Experimental Research 20(4):349-54, 2008.

55. Huang, S-C, Lu, T-W, Chen, H-L, Wang, T-M, and Chou, L-S.: Age and height effects on center of mass and center of pressure inclination angles during obstacle-crossing. Medical Engineering & Physics 30: 968-975, 2008.

56. Lugade, V., Klausmeier, V., Jewett, B., Collis, D. and Chou, L-S: Short-term recovery of balance control after total hip arthroplasty. Clinical Orthopaedics and Related Research 466: 3051-3058, 2008.

57. Siu KC, Chou, L-S, Mayr U, van Donkelaar P, Woollacott MH: Does inability to allocate attention contribute to balance constraints during gait in older adults? Journals of Gerontology: Medical Science 63A (12), 1364-1369, 2008.

2007
58. DeHaan, A., Halterman, C., Langan, J.; Drew, A.S., Osternig, L.R., Chou, L-S., van Donkelaar, P.: Cancelling planned actions following mild traumatic brain injury. Neuropsychologia (45): 406-411, 2007.

59. Catena, R.D., van Donkelaar, P. and Chou, L-S: Cognitive task effects on gait stability following concussion. Experimental Brain Research 176: 23-31. 2007.

60. Catena, R.D., van Donkelaar, P., Chou, L-S: Altered balance control following concussion is better detected with an attention test during gait. Gait and Posture 25 (3): 406-411, 2007.

61. Mandeville, D., Osternig, L.R., Chou, L-S.: The effect of total knee replacement on dynamic support of the body during walking and stair ascent. Clinical Biomechanics 22: 787-794, 2007.

62. Lee, H-J and Chou, L-S.: Balance control during stair negotiation in older adults. Journal of Biomechanics 40: 2530-2536, 2007.

63. Cherng, R-J, Chou, L-S, Su, F-C, Shaughnessy, W.J., Kaufman, K.R.: Using motion of whole-body center of mass to assess the balance during gait of children with spastic cerebral palsy. Journal of Medical and Biological Engineering 27 (3): 150-155, 2007.

64. Drew, A., Langan, J., Halterman, C., Osternig, L.R., Chou, L-S., van Donkelaar, P.: Attentional disengagement dysfunction following mTBI assessed with the gap saccade task. Neuroscience Letters 417(1): 61-65, 2007.

65. Parker, T.M., Osternig, L.R., van Donkelaar, P., and Chou, L-S.: Recovery of cognitive and dynamic motor function following concussion. British Journal of Sports Medicine 41: 868-873, 2007.
2006

66. Kaufman, K.R., Brey, R.H., Chou, L-S., Rabatin, A., Brown, A.W., Basford, J.R.: Comparison of subjective and objective measurements of balance disorders following traumatic brain injury. Medical Engineering and Physics 28 (3): 234-239, 2006.

67. Halterman, C.I., Langan, J., Rodriguez, E., Osternig, LR., Chou, L-S., and van Donkelaar, P.: Tracking the recovery of visuospatial attention deficits in mild traumatic brain injury. Brain 129: 747-753, 2006.

68. Lee, H-J. and Chou, L-S.: Detection of gait instability using the
center of mass and center of pressure inclination angles. Archives of Physical Medicine and Rehabilitation 87: 569-575, 2006.

69. van Donkelaar, P., Osternig, LR, and Chou, L-S.: Attentional and biomechanical deficits interact after mild traumatic brain injury. Exercise and Sport Sciences Reviews 34 (2):77-82, 2006.

70. Parker, T.M., Osternig, L.R., van Donkelaar, P., and Chou, L-S.: Gait stability following concussion. Medicine and Science in Sports and Exercise 38 (6): 1032-1040, 2006.

71. McIntire, A., Langan, J., Halterman, C., Drew, A., Osternig, LR, Chou, L-S., and van Donkelaar, P.: The influence of mild traumatic brain injury on the temporal distribution of attention. Experimental Brain Research 174: 361-366, 2006.

2005 and earlier
72. Hahn, M.E., Farley, A.M., Lin, V., and Chou, L-S.: Neural network estimation of balance control during locomotion. Journal of Biomechanics 38: 717-724, 2005.

73. Parker, T.M., Osternig, L.R., Lee, H-J., van Donkelaar, P., Chou, L-S.: The effect of divided attention on gait stability following concussion. Clinical Biomechanics 20/4: 389-395, 2005.

74. Hahn, M.E. and Chou, L-S.: A model for detecting balance impairment and estimating risk of falls in the elderly. Annals of Biomedical Engineering 33 (6): 811-820, 2005.

75. van Donkelaar, P., Langan, J., Rodriguez, E., Drew, A., Halterman, C., Osternig, L.R. and Chou, L-S.: Attentional deficits in concussion. Brain Injury 19 (12): 1031-1039, 2005.

76. Hahn, M.E., Lee, H-J, and Chou, L-S.: Increased muscular challenge in older adults during obstructed gait. Gait and Posture 22 (4): 356-361, 2005.

77. Hahn, M.E. and Chou, L-S.: Age-related reduction in sagittal plane center of mass motion during obstacle crossing. Journal of Biomechanics 37: 837-844, 2004.

78. Chou, L-S., Kaufman, K.R., Walker, A.E., Brey, R.H., and Basford, J.R.: Dynamic instability during obstructed gait following traumatic brain injury. Gait and Posture 20/3: 245-254, 2004.

79. Basford, J.R., Chou, L-S., Kaufman, K.R., Brey, R.H., Malec, J.F., Moessner, A.M., Walker, A., and Brown, A.: An assessment of gait and balance instability following traumatic brain injury. Archives of Physical Medicine & Rehabilitation 84:343-349, 2003.

80. Hahn, M.E. and Chou, L-S.: Can motion of individual body segments identify dynamic instability in the elderly? Clinical Biomechanics 18: 737-744, 2003.

81. Chou, L-S., Hahn, M.E., Brey, R.H., and Kaufman, K.R.: Medio-lateral motion of the center of mass during obstacle crossing distinguishes elderly individuals with imbalance. Gait and Posture 18/3: 125-133, 2003.

82. Chou, L-S., Kaufman, K.R., Brey, R.H., and Draganich, L.F.: Motion of the whole body’s center of mass when stepping over obstacles of different heights. Gait and Posture 13: 17-26, 2001.

83. Osborne, M.D., Chou, L-S., Laskowski, E.R., Smith, J., and Kaufman, K.R.: The effect of ankle disk training on muscle reaction time in subjects with previous history of ankle sprain. American Journal of Sports Medicine 29: 627-632, 2001.

84. Draganich, L.F., Whitehurst, J.B., Chou, L-S., Piotrowski, G., Pottenger, L.A., and Finn, H.A.: The effects of the rotating-hinge total knee replacement on gait and stair stepping. The Journal of Arthroplasty 14: 743-755, 1999.

85. Chou, L-S. and Draganich, L.F.: Placing the trailing foot closer to an obstacle reduces flexion of the hip, knee, and ankle to increase the risk of tripping. Journal of Biomechanics 31: 685-691, 1998.

86. Chou, L-S. and Draganich, L.F.: Increasing obstacle height and decreasing toe-obstacle distance affect the joint moments of the stance limb differently when stepping over an obstacle. Gait & Posture 8: 186-204, 1998.

87. Chou, L-S., Draganich, L.F., and Song, S.M.: Minimum energy trajectories of the swing ankle when stepping over obstacles of different heights. Journal of Biomechanics 30: 115-120, 1997.

88. Chou, L-S. and Draganich, L.F.: Stepping over an obstacle increases the motions and moments of the joints of the trailing limb in young adults. Journal of Biomechanics 30: 331-337, 1997.

89. Chou, L-S., Song, S.M., and Draganich, L.F.: Predicting the kinematics and kinetics of gait based on the optimum trajectory of the swing limb. Journal of Biomechanics 28: 377-385, 1995.

90. Chou, L-S. and Song, S.M.: Geometric work of manipulators and path planning based on minimum energy consumption. ASME Journal of Mechanical Design 114: 414-421, 1992.

Letters to the Editor or Invited Commentaries
Spaulding, S.E., Chen, T. and Chou, L-S: Response: Letter to the Editor. DOI: 10.1177/0309364614527542; Prosthetics & Orthotics International 2014.

Book Chapters
Hahn, ME., Farley, A., and Chou, L-S: Neural Network Models for Estimation of Balance Control, Detection of Imbalance, and Estimation of Falls Risk. Computational Intelligence for Movement Sciences: Neural Networks and Other Emerging Techniques, Editors: Rezaul Begg and Marimuthu Palaniswami, Idea Group, Inc., Hershey, PA. 2006.

Van Donkelaar, P., Osternig, LR, and Chou, L-S: Concussion. Encyclopedia of Exercise in Health and Disease, pp. 200-2003, Springer Berlin Heidelberg, 2012.



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