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Felix Stief

Felix Stief

Felix Stief

Director, Movement Analysis Lab, Department of Orthopedic Surgery
+49 (0)69 6705 862 (Office)
+49 (0)69 6705 9245 (Lab)
f.stief [at]
Orthopedic University Hospital
Friedrichsheim gGmbH
Marienburgstr. 2
D-60528 Frankfurt/Main


Research Focus

Dr. Stief’s research focuses on three-dimensional, instrumented clinical movement analysis of orthopedic and neurologic disorders for optimisation of treatment strategies for patients. His previous work was in the field of sports research and functional testing of shoes in the biomechanical laboratory of adidas. Dr. Stief's main expertise is biomechanical modelling of the lower limbs to quantify small effects on the musculoskeletal system in conditions such as varus malalignment, osteoarthritis, and osteoporosis with an emphasis on the role of exercise in both prevention and management.

In 2010 Dr. Stief moved from the Gait Analysis Laboratory at the Orthopedic Hospital for Children in Aschau i. Chiemgau to establish a new Movement Analysis Lab at the Friedrichsheim Orthopedic University Hospital in Frankfurt. In Frankfurt, he runs the motion analysis laboratory focused on experimental and clinical research using dynamic surface electromyography to quantify the role of activity on certain muscle groups. He is responsible for collecting, interpreting and reporting data in scientific publications and supervising trainees and PhD students.


Master of Science (MS): 2006

Technical University Darmstadt, Germany
Masters thesis: “Biomechanical analysis during walking, Nordic walking and running using inverse dynamics“ in cooperation with the Biomechanical Lab of adidas.

PhD: 2006 - 2011 Orthopedic Hospital for Children Aschau i. Chiemgau, Germany
Technical University Munich, Germany
PhD thesis: “Development of a Gait Analysis Model and its Clinical Relevance for the Treatment of Patients With Varus Malalignment of the Knee”


Selected Publications

Click here for a complete list of publications/presentations.



  • Schmidt, A., Meurer, A., Lenarz, K., Vogt, L., Froemel, D., Lutz, F., Barker, J., & Stief, F. (2016). Unilateral hip osteoarthritis: the effect of compensating strategies and anatomic measurements on frontal plane joint loading. Journal of Orthopaedic Research (In Press).
  • Stief, F., Schäfer, A., Vogt, L., Kirchner, M., Hübscher, M., Thiel, C., Banzer, W., & Meurer, A. (2016). Differences in gait performance, quadriceps strength, and fear of falling between fallers and non-fallers in women with osteoporosis. Journal of Aging and Physical Activity, 24(3), 430-434.
  • Stief, F., Schmidt, A., Adolf, S., Kremer, L., Brkic, M., & Meurer, A. (2016). Development of gait performance and dynamic hip and knee joint loading after containment improving surgery in patients with Legg-Calvé-Perthes Disease. Gait & Posture, 47, 51-56.
  • Schmidt, A., Stief, F., Lenarz, K., Froemel, D., Lutz, F., Barker, J., & Meurer, A. (2016). Unilateral hip osteoarthritis: its effects on preoperative lower limb muscle activation and intramuscular coordination patterns. Gait & Posture, 45, 187-192.
  • Stief, F., Meurer, A., Wienand, J., Rauschmann, M., & Rickert, M. (2015). Has a Mono- or Bisegmental Lumbar Spinal Fusion Surgery an Influence on Self-assessed Quality of Life, Trunk Range of Motion, and Gait Performance? Spine, 40(11), E618-626.
  • Stief, F., Böhm, H., Michel, K., Schwirtz, A., & Döderlein, L. (2013). Reliability and Accuracy in Three-Dimensional Gait Analysis: A Comparison of Two Lower Body Protocols. Journal of Applied Biomechanics, 29(1), 105-111.
  • Stief, F. (2012). Development of a Gait Analysis Model and its Clinical Relevance for the Treatment of Patients With Varus Malalignment of the Knee. Göttingen: Sierke Verlag.  
  • Böhm, H., Stief, F., Dussa, C. U., & Döderlein, L. (2012). Predictors of pelvic retraction in children with cerebral palsy derived from gait parameters and clinical testing. Gait & Posture, 35(2), 250-254.
  • Stief, F., Böhm, H., Schwirtz, A., Dussa, C. U., & Döderlein, L. (2011). Dynamic loading of the knee and hip joint and compensatory strategies in children and adolescents with varus malalignment. Gait & Posture, 33, 490-495.
  • Stief, F., Kleindienst, F. I., Wiemeyer, J., Wedel, F., Campe, S., & Krabbe, B. (2008). Inverse dynamic analysis of the lower extremities during Nordic walking, walking, and running. Journal of Applied Biomechanics, 24(4), 351-359.

More Information on Clinical Movement Analysis

More information on clinical movement analysis at Orthopedic University Hospital Friedrichsheim gGmbH, Frankfurt/Main

Gait and Clinical Movement Analysis Society (GCMAS)

European Society of Movement Analysis for Adults and Children (ESMAC)

Gesellschaft für die Analyse Menschlicher Motorik in ihrer klinischen Anwendung (GAMMA)

More information on clinical movement analysis