Susan Sigward, PhD, PT, ATC

susan sigward portrait

Faculty Profile

Associate Professor of Clinical Physical Therapy

Contact

(323) 442-2454
sigward@pt.usc.edu

Mailing Address

1540 Alcazar St., CHP 155, Los Angeles, CA 90033

Website

Human Performance Laboratory

Professional Interests

Susan Sigward is an associate professor of clinical physical therapy whose research focuses on the identification and amelioration of impaired mechanics as they relate to lower-extremity injuries, with a focus on knee injuries. Her work has contributed to the understanding of how factors such as experience, age, training and sex influence the development of movement strategies that contribute to anterior cruciate ligament (ACL) injuries. Current studies are focused on rehabilitation following ACL reconstruction, with an emphasis on the effects of early rehabilitation interventions on long-term outcomes. Dr. Sigward is director of the division’s Human Performance Laboratory at the Competitive Athletic Training Zone, Physical Therapy Institute and Sports Performance Center in Pasadena, Calif.

Education

  • Post-Doctoral Fellow, Biomechanics, Department of Orthopaedic Surgery, University of California, Los Angeles, 2004-2005
  • Doctor of Philosophy, Biokinesiology, University of Southern California, 2004
  • Master of Science, Anatomy, Wright State University, 1999
  • Bachelor of Science, Physical Therapy, Saint Louis University, 1990

See Susan Sigward’s curriculum vitae

Selected Publications

  • Havens KL and Sigward SM. “Whole Body Postural Mechanics of Running Turn Maneuvers.” Gait & Posture, Accepted 2014, In press
  • Havens KL and Sigward SM. “Joint and Segmental Mechanics of Running Turn Maneuvers.” Gait & Posture, Accepted 2014, In press
  • Havens KL and Sigward SM. “Cutting Mechanics: Relationship to Performance and ACL Injury Risk.” Medicine & Science in Sports & Exercise, Accepted 2014, In press
  • Sigward SM, Guilherme GM, Havens KL. “Predictors of Frontal Plane Moments During Side-step Cutting to 450 and 1100 in Men and Women: Implications for ACL Injury.” Clinical Journal of Sports Medicine, Accepted 2014, In press
  • Ota S, Ueda M, Aimoto K, Suzuki Y, Sigward SM. “Influence of restricted ankle dorsiflexion angle on knee joint mechanics during gait.” The Knee, 21(3): 669-675, 6/30/2014.
  • Diaz A and Sigward SM. “Commentary on Performance of Functional Gait and Balance Measures in High School Adolescents.” Pediatric Physical Therapy. 26(2):200-01, 7/01/2014.
  • Sigward SM, Pollard CD, Havens KL, Powers CM. “The influence of Sex and Maturation on Knee Mechanics During Side-step Cutting.” Medicine & Science in Sports & Exercise. 44(8):1497-503, 2012.
  • Song J, Sigward S, Fisher B, Salem G. “Altered dynamic Postural Control During Step Turning in Persons with Early Stage Parkinson’s Disease.” Parkinson’s Disease, vol. 2012, Article ID 386962, 8 pages, 2012. doi:10.1155/2012/386962
  • Sigward SM, Pollard CD, Powers CM. “The Influence of Sex and Maturation on Landing Biomechanics: Implications for ACL Injury.” Scandinavian Journal of Medicine & Science in Sports, 22(4):502-9, 2012.
  • Lyle MA, Sigward SM, Tsai L-C, Pollard CD, Powers CM. “The influence of Maturation and Lower Extremity Biomechanics on Peak Foot Velocity in Young Females During a Soccer Kick.” Medicine & Science in Sports & Exercise, 43(10):1948-1954, 2011.
  • Sigward SM, Havens KH, Powers CM. “The relation between knee separation distance and lower extremity kinematics during a drop land: Implications for clinical screening.” Journal of Athletic Training, 46(5): 471-75, 2011
  • Shultz SJ, Schmitz RJ, Nguyen A-D, Chaundhari AM, Padua DA, McLean SG, Sigward SM. “ACL Research Retreat V: An Update on ACL Injury Risk and Prevention,” March 25-27, 2010, Greensboro, NC. Journal of Athletic Training, 45(5):499-508, 2010.
  • Pollard CD, Sigward SM, Powers CM. “Limited Hip and Knee Flexion During Landing is Associated with Increased Frontal Plane Knee Motion and Moments.” Clinical Biomechanics, 25(3):142-46, 2010.
  • Tsai L-C, Sigward SM, Pollard CD, Fletcher MJ, Powers CM. “The Effects of Fatigue and Recovery on Knee Mechanics During Side-Step Cutting.” Medicine & Science in Sports & Exercise, 41(10):1952-1957,2009
  • Sigward SM, Ota S, Powers CM. “Predictors of Frontal Plane Knee Excursion During a Drop Land in Young Female Athletes.” Journal of Orthopedic and Sports Physical Therapy, 38(11):661-667, 2008
  • Sigward SM, Markolf K, Graves B, Jackson S, McAllister D. “Femoral Locations for Isometric Placement of Posterolateral Graft Reconstructions: Where Should Posterolateral Grafts be Fixed on the Femur for Optimum Graft Isometry?” Journal of Bone and Joint Surgery Am, 89(11):2359-68, 2007.
  • Markolf K, Graves B, Sigward SM, Jackson S, McAllister D. “External Rotatory Stability of the PCL Reconstructed Knee -Effects of Posterolateral Reconstructions. How Well do Reconstructions of the Posterolateral Corner Restore External Rotatory Stability to the PCL Reconstructed Knee?” Journal of Bone and Joint Surgery Am,89(11):2351-8, 2007.
  • Sigward SM, Powers CM. “Loading Characteristics of Females Who Exhibit Excessive Valgus Moments During Cutting.” Clinical Biomechanics, 22(7):827-33, 2007.
  • Markolf K, Graves B, Sigward SM, Jackson S, McAllister D. “How Well do Reconstructions of the Posterolateral Corner Restore Varus Stability of the PCL Reconstructed Knee?” American Journal of Sports Medicine, 35(7):1117-22, 2007.
  • Markolf K, Graves B, Sigward SM, Jackson S, McAllister D. “Popliteus bypass and popliteofibular ligament reconstructions reduce posterior tibial translations and forces in a posterior cruciate ligament graft.” Arthroscopy, 23(5): 482-7, 2007.
  • Pollard CD, Sigward SM, Powers CM. “Gender Differences in Hip Joint Kinematics and Kinetics During a Side-step Cutting Maneuver.” Clinical Journal of Sports Medicine, 17: 38-42, 2007.
  • Sigward S, Powers C. “The Influence of Gender on Knee Kinematics, Kinetics and Muscle Activation Patterns During Side-step Cutting.” Clinical Biomechanics, 21(1):41-8, 2006.
  • Sigward SM, Powers CM. “The Influence of Experience on Knee Mechanics During Side-step Cutting.” Clinical Biomechanics, 21(7):740-7, 2006.
  • Pollard CD, Sigward SM, Ota S, Langford K, Powers CM. “The Influence of In-season Injury Prevention Training on Lower Extremity Kinematics During Landing in Female Soccer Players.” Clinical Journal of Sports Medicine, 16(3):223-7, 2006.

Grant Support

  • 2014-2015 – PI,SC CTSI (NIH/NCATS; UL1TR000130), “ Effects of Gait Training on Knee Loading Following Anterior Cruciate Ligament Reconstruction”. Award amount $27,525
  • 2014-2015 – PI, Boston Rehabilitation Outcomes Measurement Pilot Project (NIH R24 HD05688). “Tools to quantify gait behaviors in individuals recovering from anterior cruciate ligament reconstruction”. Award amount $30,000
  • 2014-2015 – PI, California Physical Therapy Fund, “Does Early Gait Training Improve Lower Extremity Sagittal Plane Loading Following Anterior Cruciate Ligament Reconstruction?”. Award amount $9,095
  • 2012-2013 – PI, Zumberge Fund Individual Grant, “The Development of Postural Strategies in Children”. Award amount: $27,000
  • 2011 – 2016 – Scholar, NIH, National Center for Medical Rehabilitation Research (NICHD), National Institutes of Health Rehabilitation Research Career Development Program, K12-HD055929 (Ottenbacher, PI)
  • 2005 – 2009 – Project Manager (70% effort), “Mechanics of non-contact ACL injuries in female athletes”, NIH, R01 AR053073-01A1(Powers, PI) Powers (PI)
  • 2002 – 2003 – Project Manager (50% effort), “Biomechanical and Neuromuscular aspects of non-contact ACL injuries: The influence of gender, experience and training,” National Athletic Trainer’s Foundation Grant (Powers, PI)