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Kristian O'Connor, PhD

Professor

Education

Ph D Exercise Science University of Massachusetts 2002
MS Exercise Science Arizona State University 1998
BA Physics Colorado College 1994

Speaker Topics

  • Athletic Injuries and Rehabilitation
  • Exercise Science

Interests & Expertise

Kristian O’Connor’s primary research focus is on the biomechanics of musculoskeletal injury. Current research has focused on the mechanisms knee injuries that occur during sports, and particularly the effects of fatigue on increased injury risk. The effects of fatigue may be central to understanding overuse running injuries, such as anterior knee pain and traumatic injuries, such as anterior cruciate ligament (ACL) tears. Neuromuscular fatigue may also be a factor contributing to musculoskeletal disease progression such as with osteoarthritis.

O’Connor has also been actively involved in developing a new motion capture technology to track motion in three-dimensions using a single camera. This will allow for a portable system for testing in a clinical setting that avoids the need to bring populations to specially-equipped labs.

Selected Publications

Bazett-Jones, D. M., Huddleston, W. E., Cobb, S. C., O’Connor, K. M., & Earl-Boehm, J. E. (2017, May). Acute Responses of Strength and Running Mechanics to Increasing and Decreasing Pain in Patients With Patellofemoral Pain. Journal of Athletic Training, 52(5), 411-421.
Fiedler, G., Slavens, B. A., O’Connor, K. M., Smith, R. O., & Hafner, B. J. (2016, February). Effects of physical exertion on trans-tibial prosthesis users’ ability to accommodate alignment perturbations. Prosthetics and Orthotics International, 40(1), 75-82.
J, Almonroeder, T. G., & O’Connor, K. M. (2016). The effects of fatigue and anticipation on the mechanics of the knee during cutting in female athletes. Clinical Biomechanics, 35, 62-67.
O’Connor, K. M., Johnson, C., & Benson, L. (2015). The effect of isolated hamstrings fatigue on landing and cutting mechanics. Journal of Applied Biomechanics, 31(4), 211-220.
Benson, L., & O’Connor, K. M. (2015). The effect of exertion on joint kinematics and kinetics during running using a waveform analysis approach. Journal of Applied Biomechanics, 31(4), 250-257.
Almonroeder, T. G., Benson, L., & O’Connor, K. M. (2015). The effect of a prefabricated foot orthotic on frontal plane joint mechanics during. Journal of Applied Biomechanics, 31(3), 149-158.
Almonroeder, T., Benson, L., & O’Connor, K. M. (2015). Changes in patellofemoral joint stress during running with the application of a prefabricated foot orthotic. International Journal of Sports Physical Therapy, 10(7), 967-975.
Weinhandl, J. T., Earl-Boehm, J. E., Ebersole, K., Huddleston, W. E., Armstrong, B. S., & O’Connor, K. M. (2014). Reduced hamstrings strength increases anterior cruciate ligament loading during anticipated sidestep cutting. Clinical Biomechanics.
Bazett-Jones, D. M., Cobb, S. C., O’Connor, K. M., Huddleston, W. E., Armstrong, B. S., & Earl-Boehm, J. E. (2013). Effect of patellofemoral pain on strength and mechanics after an exhaustive run. Med Sci Sports Exerc, 45(7), 1331-1339.
Seneli, R. M., Ebersole, K., O’Connor, K. M., Snyder, A. C., & Hall, E. (2013). Estimated VO2max from the Rockport Walk Test on a non-motorized, curved treadmill. Journal of strength and conditioning research/National Strength & Conditioning Association, 27(12).
Weinhandl, J. T., Earl-Boehm, J. E., O’Connor, K. M., Ebersole, K., Huddleston, W. E., & Armstrong, B. S. (2013). Anticipatory effects on anterior cruciate ligament loading during sidestep cutting. Clinical Biomechanics, 28(6), 655-663.
Bazett-Jones, D. M., Cobb, S. C., Huddleston, W. E., O’Connor, K. M., Armstrong, B. S., & Earl-Boehm, J. E. (2013, July (3rd Quarter/Summer)). Effect of patellofemoral pain on strength and mechanics after an exhaustive run. Medicine and science in sports and exercise, 45(7), 1331-9.
Weinhandl, J. T., Earl-Boehm, J. E., Ebersole, K., Huddleston, W. E., Armstrong, B. S., & O’Connor, K. M. (2013, July (3rd Quarter/Summer)). Anticipatory effects on anterior cruciate ligament loading during sidestep cutting. Clinical biomechanics (Bristol, Avon), 28(6), 655-63.
Laughlin, W. A., Weinhandl, J. T., Kernozek, T. W., Cobb, S. C., Keenan, K., & O’Connor, K. M. (2011). The effects of single-leg landing technique on ACL loading. J Biomech, 44(10), 1845-1851.
O’Connor, K. M., Johnson, C., & Laughlin, W. (2010). The effect of hamstrings fatigue on landing knee mechanics. Journal of Athletic Training, 45(5), 525.

Presentations

Alexander, A. M., Safarovic, B., Weissenboeck, K., Almonroeder, T. G., & O’Connor, K. M. (2016). Comparison of gait parameters using anatomical- and functional-based methods of hip joint center definitions. American Society of Biomechanics Annual Meeting, Raleigh, NC.
O’Connor, K. M., Safarovic, B., Weissenboeck, K., Almonroeder, T. G., & Alexander, A. M. (2016). Comparison of gait parameters using anatomical- and functional-based methods of knee joint axis definitions. American Society of Biomechanics Annual Meeting, Raleigh, NC.
Benson, L., Cobb, S. C., Hyngstrom, A., Keenan, K., Luo, J., & O’Connor, K. M. (2016). Predicting walking foot clearance from sagittal joint coordination. American Society of Biomechanics Annual Meeting, Raleigh, NC.
O’Connor, M. L., O’Connor, K. M., Ebersole, K., & Earl-Boehm, J. E. (2016). The development of the single-leg landing error scoring system (SL-LESS) for lower extremity movement screening. National Athletic Training Association Annual Convention, Baltimore, MD.
Benson, L., Cobb, S. C., Hyngstrom, A., Keenan, K., Luo, J., & O’Connor, K. M. (2016). Predicting walking foot clearance from sagittal joint coordination. University of Wisconsin-Milwaukee College of Health Sciences Spring Research Symposium, Milwaukee, WI.
Benson, L., Cobb, S. C., Hybgstrom, A., Keenan, K., & O’Connor, K. M. (August 2016). Predicting walking foot clearance from sagittal joint coordination. American Society of Biomechanics Annual Meeting, .
Earl-Boehm, J. E., O’Connor, K. M., Thorpe, J., & Arvinen-Barrow, M. (June 2016). Functional and psychological benefits of active video gaming in chronic ankle instability. National Athletic Trainer’s Association Annual Symposia and Convention, Baltimore, MD.
Gerstle, E., Keenan, K., O’Connor, K. M., & Cobb, S. C. (May 2016). Lower extremity muscle activity during descent from varying step heights. 21st Annual GCMAS Meeting, .
Seneli, R. M., Beschorner, K. E., Keenan, K., Earl-Boehm, J. E., O’Connor, K. M., & Cobb, S. C. (May 2016). Foot joint coupling variability in rearfoot and forefoot runners after an exhaustive run. 63rd Annual ACSM Meeting, .
Gerstle, E., Keenan, K., O’Connor, K. M., & Cobb, S. C. (May 2016). Lower extremity muscle activity during descent from varying step heights. 2016 CHS Research Symposium, .
Almonroeder, T., Benson, L., & O’Connor, K. M. (2015). The Effect of a Foot Orthotic on Frontal Plane Joint Mechanics During Running in Groups with Varying Rearfoot Motion. American Physical Therapy Association, Combined Sections Meeting,, Indianapolis, IN.
Benson, L., & O’Connor, K. M. (2015). Assessment of Knee Mechanics and Muscle Activity during balance exercises. American Society of Biomechanics annual meeting, Columbus, OH.
Johnson, B., Campbell-Kyureghyan, N., Otieno, W., & O’Connor, K. M. (2015). Influence of jackhammer weight on hand-arm vibration transmission. American Society of Biomechanics annual meeting,, Columbus, OH..
Benson, L., Almonroeder, T., & O’Connor, K. M. (2015). Making it count: using number of touch-downs during eyes closed single-leg stance to evaluate balance performance.. University of Wisconsin-Milwaukee College of Health Sciences Fall Research Symposium,, Milwaukee, WI.
Benson, L., & O’Connor, K. M. (2015). Assessment of Knee Mechanics and Muscle Activity during balance exercises. University of Wisconsin-Milwaukee College of Health Sciences Spring Research Symposium, Milwaukee, WI.

Recent Funded Grants

O’Connor, K. M., Armstrong, B. S. R., & Powers, C. “An innovative tool for assessment of gait dysfunction in the clinical setting,” National Institutes of Health 2R44HD068147-02 ($1,500,000 – Priority Score 31, PENDING).

O’Connor, K. M., Armstrong, B. S. R., & Powers, C. “An innovative tool for assessment of gait dysfunction in the clinical setting,” National Institutes of Health 1R43HD068147-01 ($215,411).

O’Connor, K. M. “Gait and Muscle Activation Patterns of Skechers Toning Footwear,” Sport Biomechanics, Inc. 2010 ($17,673).

Honors & Awards

Dean’s Award for Outstanding Service (2016) College of Health Sciences, University of Wisconsin-Milwaukee.