Research Equipment and Testing Expertise

• The VA Salt Lake City Motion Capture Laboratory (Building 8) is a clinical research facility focused on the study of movement and performance in adults with upper and lower limb pathology. Clinical research is conducted using state of the art measurement techniques including marker-based motion analysis (spatiotemporal, kinetic and kinematics evaluation), muscle performance (Biodex Multi-Joint System), wearable technology (LoadSol, ActiGraph, etc.) and validated performance-based measures. Students, faculty and staff from throughout the VA and University of Utah collaborate together on a variety of clinical research projects.

Publications

• Abraham N, Lyden K, Boucher R, Wei G, Gonce V, Carle J, Supiano M, Christensen J, Bedd (2023). An Intervention to Decrease Sedentary Behavior in Older Adults: A Secondary Analysis of a Randomized Controlled Trial. Obes Sci Pract. Accepted, 06/20/2023.
• Lyden K, Abraham N, Boucher R, Wei G, Gonce V, Carle J, Hartsell S, Christensen J, Beddhu S (2023). Predicting Hospitalization from Real-World Digital Measures of Physical Function in Patients with Chronic Kidney Disease: A Proof-of-Principle Study. Digit Health. Accepted, 06/20/2023.
• Christensen JC, Blackburn B, Anderson LA, Gililland JM, Pelt CE (2023). Recovery Curve for Patient Reported Outcomes and Objective Physical Activity After Primary Total Knee Arthroplasty – A Multicenter Study Using Wearable Technology. J Arthroplasty. Published, 06/01/2023.
• Christensen JC, Stanley EC, Oro EG, Carlson HB, Naveh YY, Shalita R, Teitz LS. (2022). The Validity and Reliability of the OneStep Smartphone Application Under Various Gait Conditions with Feasibility in Clinical Practice. Journal of Orthopaedic Surgery and Research. Published, 08/19/2022.
• Christensen JC, Jakiela JT, White DK (2022). Factors Associated with Trajectories of Physical Activity Over 8 Years in Knee Osteoarthritis. European Journal of Rheumatology. Eur J Rheumatol. Published, 08/09/2022.
• Thomsen PB, Aumeier JW, Wilbur CA, Oro EG, Carlson HB, Christensen JC (2022). Lower Limb Extension Power is Associated with Slope Walking Joint Loading Mechanics in Older Adults. J Appl Biomech. Published, 05/06/2022.
• Aljehani M, Christensen JC, Snyder-Mackler L, Crenshaw J, Brown A, Zeni JA (2022). Knee Biomechanics and Contralateral Knee Osteoarthritis Progression after Total Knee Arthroplasty. Gait & Posture. Published, 01/09/2022.
• Christensen JC, Quammen DL, Rigby JH, Christiansen CL, Stevens-Lapsley JE (2021). Trunk Movement Compensation Identified by Inertial Measurement Units Are Associated with Physical Performance and Muscle Strength Deficit in People with Hip Osteoarthritis. Clin Biomech (Bristol, Avon). Published, 07/21/2021.
• Lyden K, Boucher R, Wei G, Zhou N, Christensen JC, Chertow G, Greene T, Beddhu S (2021). . Targeting Sedentary Behavior in CKD: A Pilot and Feasibility Randomized Controlled Trial. Clin J Am Soc Nephrol. Published, 04/22/2021.
• Christensen JC, Pelt CE, Foreman KB, Anderson AE, LaStayo PC, Gililland JM, Mizner RL (2021). Longitudinal Study of Knee Load Avoidant Movement Behavior After Total Knee Arthroplasty with Recommendations for Future Retraining Interventions. Knee. Published, 04/16/2021.
• Binder EF, Christensen JC, Stevens-Lapsley JE, Berry SD, Dobs AS, Fortinsky RH, Schechtman KB (2021). A Multi-Center Trial of Exercise and Testosterone Therapy In Female Hip Fracture Patients: Design, Methods and Impact of the COVID-19 Pandemic. Contemp Clin Trials. Published, 03/11/2021.
• Christensen JC, Capin JJ, Hinrichs LA, Aljehani M, Stevens-Lapsley JE, Zeni JA. (2020). Gait mechanics are influenced by quadriceps strength, age and sex after total knee arthroplasty. J Orthop Res. Published, 10/09/2020.
• Kittelson AJ, Elings J, Colborn K, Hoogeboom T, Christensen JC, Stevens-Lapsley JE (2020). Reference Chart for Knee Flexion Following Total Knee Arthroplasty: A Novel Tool for Monitoring Postoperative Recovery. BMC Musculoskelet Disord. Published, 07/22/2020.
• Christensen JC, Kline PW, Murray AM, Christiansen CL (2020). Movement Asymmetry During Low and High Demand Mobility Tasks after Dysvascular Transtibial Amputation. Clin Biomech (Bristol, Avon). Published, 07/07/2020.
• Christensen JC, Peters CL, Gililland JM, Pelt CE (2020). Physical Activity, Pain Interference and Comorbidities Relate to PROMIS Physical Function in Younger Adults Following Total Knee Arthroplasty. Disabil Rehabil. Published, 04/09/2020.
• Bade MJ, Christensen JC, Christiansen CL, Dayton MR, Forster JE, Cheuy VA, Stevens-Lapsl (2020). Movement Pattern Biofeedback Training after Total Knee Arthroplasty: Randomized Clinical Trial Protocol. Contemp Clin Trials. Published, 03/11/2020.
• Kittelson AJ, Christensen JC, Lloyd BJ, Burrow K, Iannitto J, Stevens-Lapsley JE (2020). Reliability, Responsiveness and Validity of Handheld Dynamometry for Assessing Quadriceps Strength in Total Knee Arthroplasty. Disabil Rehabil. Published, 03/06/2020.
• Christensen JC, Paxton RJ, Baym C, Forster JE, Dayton MR, Hogan CA, Stevens-Lapsley JE (2020). Benefits of Direct Patient Discharge to Outpatient Physical Therapy After Total Knee Arthroplasty. Disabil Rehabil. Published, 03/03/2020.
• Christensen JC, Kittelson AJ, Lloyd BJ, Himawan MA, Thigpen CA, Stevens-Lapsley JE (2019). Characteristics of Young and Lower Functioning Patients Following Total Knee Arthroplasty: A Retrospective Study. BMC Musculoskelet Disord. Published, 10/27/2019.
• Christensen JC, Kittelson AJ, Lloyd BJ, Himawan MA, Thigpen CA, Stevens-Lapsley JE (2019). Characteristics of Young and Lower Functioning Patients Following Total Knee Arthroplasty: A Retrospective Study. BMC Musculoskelet Disord. Published, 10/27/2019.
• Christensen JC, Marland JD, Miller CJ, Horton BS, White DR, West HS (2019). Trajectory of Clinical Outcomes Following Hip Arthroscopy in Female Subgroup Populations. J Hip Preserv Surg. Published, 03/20/2019.
• Christensen JC, Mizner RL, Foreman KB, LaStayo PC, Peters CL, Pelt CE (2019). Preoperative Quadriceps Weakness Preferentially Predicts Postoperative Aberrant Movement Patterns During High-Demand Mobility Following Total Knee Arthroplasty. Knee. Published, 01/26/2019.
• Christensen JC, Miller CJ, Burns, RD, West, HS (2018). Effect of Physical Therapy Visits on Clinical Outcomes Following Anterior Cruciate Ligament Reconstruction With and Without Concurrent Meniscal Repair. J Sport Rehabil. Published, 10/01/2018.
• Christensen JC, LaStayo, PC, Foreman KB, Marcus RL, Pelt CE, Mizner RL (2018). Quadriceps Weakness Preferentially Predicts Detrimental Gait Compensations Amongst Common Impairments After Total Knee Arthroplasty. J Orthop Res. Published, 09/01/2018.
• Christensen JC, Foreman KB, Mizner RL, Marcus RL, Pelt CE, LaStayo, PC (2018). Comparison of 2 Forms of Kinetic Biofeedback on the Immediate Correction of Knee Extensor Moment Asymmetry Following Total Knee Arthroplasty During Decline Walking. J Orthop Sports Phys Ther. Published, 08/20/2018.
• Christensen JC, Foreman KB, LaStayo PC (2018). The Positive Benefits of Eccentric Movement Patterns Following Total Knee Arthroplasty. Geriatr Orthop Surg Rehabil. Published, 03/26/2018.
• Kagan R, Anderson MB, Christensen JC, Peters CL, Gililland JM, Pelt CE (2018). The Recovery Curve For The PROMIS® Patient Reported Physical Function and Pain Interference Computerized Adaptive Tests Following Primary Total Knee Arthroplasty. J Arthroplasty. Published, 03/17/2018.
• Christensen JC, LaStayo PC, Marcus RL, Bo Foreman K, Mizner RL, Peters CL, Pelt CE (2018). Visual Knee-Kinetic Biofeedback Technique Normalizes Gait Abnormalities During High-Demand Mobility After Total Knee Arthroplasty. Knee. Published, 01/25/2018.
• Christensen JC, LaStayo, PC, Mizner RL, Marcus RL, Pelt CE, Foreman KB (2017). Joint Mechanical Asymmetries During Low- and High-Demand Mobility Tasks: Comparison Between Total Knee Arthroplasty and Healthy-Matched Peers. Gait Posture. Published, 11/21/2017.
• Miller CJ, Christensen JC, Burns RD (2017). Influence of Demographics and Utilization of Physical Therapy Services on Clinical Outcomes and Revision Rates Following Anterior Cruciate Ligament Reconstruction. J Orthop Sports Phys Ther. Published, 10/09/2017.
• Christensen JC, Wilson C, Merryweather AS, Foreman KB (2017). Kinematics of the Pelvis, Trunk and Thigh During an Obstacle Crossing Task While Under Temporal Constraints. Anat Rec (Hoboken). Published, 04/12/2017.
• Christensen JC, Brothers J, Stoddard GJ, Pelt CE, Gililland JM, Peters CL (2017). Higher Frequency of Reoperation With A New Bicruciate-Retaining Total Knee Arthroplasty. Clin Orthop Relat Res. Published, 01/11/2017.
• Smith JW, Marcus RL. Tracy B, Foreman KB, Christensen JC, LaStayo PC (2016). . Stance Time Variability During Stair Stepping Before and After Total Knee Arthroplasty: A Pilot Study. Hum Mov Sci. Published, 02/09/2016.
• Christensen JC, Goldfine LR, Barker T, Collingridge, D (2015). What Can The First 2 Months Tell Us About Outcomes After Anterior Cruciate Ligament Reconstruction?. J Athl Train. Published, 05/12/2015.
• Smith JW, Christensen JC, Marcus RL, LaStayo PC (2014). Muscle Force and Movement Variability Before and After Total Knee Arthroplasty: A Review. World J Orthop. Published, 04/08/2014.
• Christensen JC, Goldfine LR, West HS (2013). The Effects of Early Aggressive Rehabilitation on Outcomes After Anterior Cruciate Ligament Reconstruction Using Autologous Hamstring Tendon: A Randomized Clinical Trial. J Sport Rehabil. Published, 08/01/2013.
• Philippon MJ, Christensen JC, Wahoff MS (2009). Rehabilitation After Arthroscopic Repair of Intra-Articular Disorders of the Hip in a Professional Football Athlete. J Sport Rehabil. Published, 02/02/2009.
• Dibble LE, Christensen JC, Ballard DJ, Foreman KB (2008). Diagnosing Fall Risk in Persons With Parkinson Disease: The Validity of Collective Interpretation of Clinical Balance Tests. Phys Ther. Published, 03/12/2008.