Rapp van Roden
Elizabeth A. Rapp van Roden, Ph.D.
Senior Scientist
Biomechanics
Philadelphia

Dr. Rapp van Roden has a dual background in biomechanics and mathematics. She has extensive experience evaluating motion of the shoulder in children with orthopedic pathologies and offers an expertise in the biomechanics of the shoulder joint in both children and adults. Additionally, she has conducted research analyzing the biomechanical factors involved in slips, trips and falls. At Exponent, Dr. Rapp van Roden evaluates the mechanisms and risks of injury in construction, occupational, recreational, and motor vehicle accidents.

Dr. Rapp van Roden’s previous research included the evaluation of shoulder biomechanics in children with brachial plexus injuries. Her doctoral research focused on analyzing the effect of instrumented spinal fusion on shoulder motion in children with scoliosis. Dr. Rapp van Roden also has several years of experience in sports biomechanics, specifically in the kinematic analysis of figure skating jumps for the U.S. Figure Skating Association and a partnership with athletic apparel companies to evaluate the biomechanics of breast motion during running.

Prior to joining Exponent, Dr. Rapp van Roden worked as a Graduate Research Assistant in the Upper Extremity Biomechanics Lab at the University of Delaware, as well as in the Motion Analysis Lab at Shriners Hospital for Children in Philadelphia, PA and the Gait Lab at Nemours/A.I. DuPont Hospital for Children in Wilmington, DE. She co-authored a Shriners-funded medical research grant examining surgical technique for improving shoulder motion in children with Brachial Plexus Birth Palsy. 

Dr. Rapp van Roden is skilled in the use of multiple high-speed motion capture systems, strain gage force plates, inertial measurement sensors, and electromyography data collection. She has additional experience in the use of biplane fluoroscopy in the analysis of 3D joint kinematics of the shoulder. 

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Biomechanics and Movement Science, University of Delaware, 2017
  • M.S., Biomechanics and Movement Science, University of Delaware, 2016
  • B.S., Mathematics and Economics, Georgetown University, 2008, with honors
  • Outstanding Graduate Student in Kinesiology, University of Delaware, 2016

    Best Poster - University of Delaware Center for Biomedical Engineering Research Symposium, 2016: Helical versus Euler angles for describing scapulothoracic motion

Publications

Richardson RT, Rapp EA, Quinton RG, Nicholson KN, Knarr BA, Russo SA, Higginson JS, Richards JG. Errors associated with utilizing prescribed scapular kinematics to estimate unconstrained, natural upper extremity motion in musculoskeletal modeling. Journal of Applied Biomechanics, 33(6), Dec 2017, pp: 469-473.

Nicholson KF, Richardson RT, Rapp EA, Quinton RG, Anzilotti KF, Richards JG. Validation of a mathematical approach to estimate dynamic scapular orientation. Journal of Biomechanics, 54, March 2017, pp:101-105.

Rapp EA and Gabos PG. Impact of scoliosis on gait. Handbook of Human Motion. Springer, August 2016, pp: 1-18.

Rapp EA, Richardson RT, Russo SA, Rose WC, Richards JG. A comparison of two non-invasive methods for measuring scapular orientation in functional positions. Journal of Biomechanics, 61, August 2016, pp: 269-274.

Richards RT, Nicholson KF, Rapp EA, Johnston TE, Richards JG. A comparison of methods for estimating scapular kinematics during upper extremity ergometry. Journal of Biomechanics, 49(7), May 2016, pp: 1255-8.

Selected Presentations and Published Abstracts

Rapp EA, Richardson RT, Conner BC, Petersen DA, Pigman J, Crenshaw JR. Quantifying the contribution of counter-rotation movements during fall recovery: a validation study. American Society of Biomechanics Annual Conference, August 2017, Boulder, CO. 

Russo SA, Rapp EA, Kozin SH, Richards JG, Lubahn JD, Zlotolow DA. Shoulder rotation after anterior capsule release versus humeral osteotomy in children with brachial plexus injuries. Annual Meeting of the American Society for Surgery of the Hand, September 2017, San Francisco, CA.

Rapp EA, Richardson RT, Russo SA, Rose WC, Richards JG. A comparison of two non-invasive methods for measuring scapular kinematic in functional positions. Gait and Clinical Movement Analysis Society Conference, May 2017, Salt Lake City, UT.

Rapp EA, Richardson RT, Chafetz RS, Samdani AF, Richards JG. Scapular kinematics in adolescents with idiopathic scoliosis. Gait and Clinical Movement Analysis Society Conference, May 2017, Salt Lake City, UT.

Richardson RT, Rapp EA, Chafetz RS, Russo SA, Zlotolow DA, Kozin SH, Richards JG. Impact of glenohumeral joint congruity on shoulder function in brachial plexus birth palsy. Gait & Clinical Movement Analysis Society Conference, May 2017, Salt Lake City, UT.

Rapp EA, Russo SA, Richardson RT, Rose WC, Richards JG. Evaluation of two non-invasive measures of scapular orientation in adolescents. Pediatric Orthopaedic Society of North America Symposium, December 2016, Lake Buena Vista, FL.

Rapp EA, Nicholson KF, Richardson RT, Johnston TE, Richards JG. Optimal method for estimating scapular kinematics during upper extremity cycling. American Society of Biomechanics Annual Conference, August 2015, Columbus OH.

Professional Affiliations

American Society of Biomechanics

Gait and Clinical Movement Analysis Society

Phi Beta Kappa Honors Society

Additional Information

Peer Reviewer

Journal of Biomechanics

Spine (Phila Pa 1976)

News & Events

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Biomechanics and Movement Science, University of Delaware, 2017
  • M.S., Biomechanics and Movement Science, University of Delaware, 2016
  • B.S., Mathematics and Economics, Georgetown University, 2008, with honors
  • Outstanding Graduate Student in Kinesiology, University of Delaware, 2016

    Best Poster - University of Delaware Center for Biomedical Engineering Research Symposium, 2016: Helical versus Euler angles for describing scapulothoracic motion