Physical Medicine and Rehabilitation

Clinical Movement Analysis, Cerebral Palsy, Scoliosis

Interests

Improved gait analysis methods, mathematical modeling of locomotion, measurement of dynamic center of gravity displacement, and characterization of neuromuscular stiffness

Activities

GRANT SUPPORT (Funded)
Apr. 2010 $175,000 J.T. Tai & Co. Foundation, “2009 Progress Report and 2010 Proposal for
the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo, J. Valvano (funding pending).

Jan. 2010 $598,501 National Institute on Disability and Rehabilitation Research (NIDRR),
FY2010 Field Initiated Research Program, 84.133G, “ The Longitudinal Cerebral Palsy Transition to Adulthood Study: A follow-up, prospective, cohort and cross-sectional study on the effects of mobility on health, function, and quality of life. PI: J. J. Carollo (funding pending).

Oct. 2009 $48,417 Lowe Fund of the Denver Foundation, “Research Infrastructure Support
CGMA,” J. J. Carollo, J. Dawes

Apr. 2009 $100,000 J.T. Tai & Co. Foundation, “2008 Progress Report and 2009 Proposal for
the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo, J. Valvano

Sept. 2008 $126,535 Medtronics, “Impact of Spinal Fusion Construct with Sacro-pelvic
Fixation on Gait Dynamics,” M. Erickson, J. J. Carollo

Aug. 2008 $45,661 Lowe Fund of the Denver Foundation, “Research Infrastructure Support
CGMA,” K. Crawley, J. J. Carollo

Apr. 2008 $100,000 J.T. Tai & Co. Foundation, “2007 Progress Report and 2008 Proposal for
the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo

Mar. 2008 $6,000 UC Colorado Springs (UCCS), “International Cooperation on Human Motion Analysis Project: Laban Notation,” J. J. Carollo

Dec. 2007 $30,000 The Children’s Hospital Research Institute, “Rhythmic Auditory
Stimulation as a Gait Intervention for Children with CP,” M. Thaut, J. J.
Carollo

Apr. 2007 $100,000 J.T. Tai & Co. Foundation, “2006 Progress Report and 2007 Proposal for the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo

Apr. 2006 $100,000 J. T. Tai & Co. Foundation, “2005 Progress Report and 2006 Proposal for the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo

Jan. 2006 $41,500 Lowe Fund of the Denver Foundation, “Capital Equipment Support of the Center for Gait and Movement Analysis (CGMA): Portable Oxygen Consumption Measurement System,” K. Crawley, J. J. Carollo

Jan. 2006 $600,000 UCDHSC School of Medicine, Dean’s Academic Enrichment Fund, “Musculoskeletal Research Center (MRC): Preliminary Overview and Business Plan,” M. Erickson and J. Carollo

Dec. 2005 $100,000 J. T. Tai & Co. Foundation, “2004 Progress Report and 2005 Proposal for the Center for Gait and Movement Analysis (CGMA),” J. J. Carollo

Sep. 2004 $100,000 Lowe Fund of the Denver Foundation, “Capital Equipment Support of the Center for Gait and Movement Analysis (CGMA) in The Children's Hospital at Fitzsimons,” S. Morrison, J. J. Carollo

Dec. 2004 $100,000 J. T. Tai & Co. Foundation, “Support of Research and Education Opportunities at CGMA,” J. J. Carollo, F. M. Chang, L. Schaffer

Mar. 2004 $100,000 Lowe Fund of the Denver Foundation, “Capital Equipment Support of the Center for Gait and Movement Analysis (CGMA) in The Children's Hospital at Fitzsimons,” S. Morrison, J. J. Carollo

Dec. 2003 $100,000 J. T. Tai & Co. Foundation, “Research Training for Graduate and Medical Student at CGMA,” J. J. Carollo, F. M. Chang, B. Wills

Dec. 2002 $100,000 J. T. Tai & Co. Foundation, “Creation of a Cerebral Palsy Center of Excellence,” J. J. Carollo, F. M. Chang, B. Wills

Mar. 2002 $100,000 Lowe Fund of the Denver Foundation, “Development of the Next Generation Movement Laboratory at The Children’s Hospital,” J. J. Carollo, B. Wills

Dec. 2001 $100,000 J. T. Tai & Co. Foundation, “A Proposal for Expansion of CGMA,” J. J. Carollo, F. M. Chang, B. Wills

Jan. 2001 $75,000 Lowe Fund of the Denver Foundation, “Operations Support for the Center for Gait and Movement Analysis,” J. J. Carollo, B. Wills

Oct. 2001 $94,500 NICHDD, #R21-HD41585-01, “Developing Clinical Trials in Assistive Technology,” D. J. Matthews, C. Bodine, J. J. Carollo.

Feb. 2001 $69,868 The Children’s Hospital Research Institute, “Development and Clinical Validation of New Measures of Dynamic Balance Based on Center of Mass (COM) and Center of Pressure (COP) Determination,” J. J. Carollo.

July 2000 $49,974 United Cerebral Palsy Research and Education Foundation, “The Effects of Verbal and Physical Guidance on the Learning of a Novel Gross Motor Skill by Children with Spastic Cerebral Palsy,” C. B. Heriza, J. Valvano, J. J. Carollo,

Nov. 1997 $47,570 U. S. Department of Defense, MTP-H1, “Measurement of Joint Proprioception,” Part of a larger grant to study Gulf War Syndrome, PI: Dr. Robert Haley, J. J. Carollo and P. Winchester,
(first year funding, total for 3 years $112,584)

Sept 1992 $6,030 Autry Industries, Inc., "Comparison of Ground Reaction Forces and Pressure Distribution in Non-Pathologic Subjects Wearing commercially Available Shoes," J.J. Carollo,

June 1991 $70,382 Whitaker Foundation, "Study of Gait Stability of Normals and Post-Polio Patients Using Non-Linear Theory," Y. Hurmuzlu, J. J. Carollo, and J. W. Aston,

Jan 1991 $8,300 Rehab Hospital Services Corp. Foundation, "Use of Afferent Electrical Stimulation to Reduce Calf Hypertonia," J.W. Aston and J. J. Carollo

Jan 1991 $15,085 Rehab Hospital Services Corp. Foundation, "Visual Feedback of Motor Speech Components in Patients with Communication Impairments: Therapeutic Applications,"
D. Bradley and J. J. Carollo

Feb 1990 $40,000 Aston Foundation, "A Glass Top Force Platform for use in Clinical Gait Analysis," J. W. Aston and J. J. Carollo

Jan 1990 $187,763 Texas Higher Education Coordinating Board, Advanced Technology Program, "Development of a Computer Controlled Gait Assist Device for the Spinal Cord Injured," J. W. Aston and J. J. Carollo

June 1989 $120,900 Hoblitzelle Foundation, "A Proposal for Capital Equipment for the Mobility Research and Assessment Laboratory," J. W. Aston and J. J. Carollo

Jan 1989 $200,000 Mobility Foundation, "A Proposal for the Establishment of the Mobility Research and Assessment Laboratory," J. J. Carollo and J. W. Aston

Graduate School: University of Texas, Arlington

Internship: Texas Scottish Rite Hospital for Children

Fellowship: University of Texas, Southwestern Medical School

Peer Reviewed Journals
1. Wenger, DR, Carollo, JJ, Wilkerson, JA, Wauters, K, and Herring, JA: Laboratory testing of segmental spinal instrumentation for scoliosis treatment. Spine, 7:265-269, 1982.

2. Wenger, DR, Carollo, JJ, and Wilkerson, JA: Biomechanics of scoliosis correction by segmental spinal instrumentation. Spine, 7:260-264, 1982.

3. Wenger, DR. and Carollo, JJ: Unstable thoracolumbar fractures: Mechanics of stabilization by segmental fixation. Clinical Orthopedics, 189:89-96, 1984.

4. Szalay, EA, Carollo, JJ, and Roach, JW: Sensitivity of spinal cord monitoring to intraoperative events. Journal of Pediatric Orthopedics, 6:437-441, 1986.

5. Aston, JW, Williams, S, Allard R, Sawamura, S and Carollo, JJ: A new canine cruciate ligament formed through distraction histogenesis. Clinical Orthopaedics and Related Research, 280:30-36, July 1992.

6. Winchester, PK, Carollo, JJ, Parekh, RN: A comparison of paraplegic gait performance using two types of reciprocating gait orthoses. Pros Orth Internat 17:101-106, September 1993.

7. Hurmuzlu, Y, Basdogan, C, and Carollo, JJ: Presenting Joint Kinematics of Human Locomotion Using Phase Plane Portraits and Poincare Maps. Journal of Biomechanics, 27(12):1495-1499, 1994.

8. Winchester, P, Carollo, JJ, and Habasevich, R: Physiologic costs of reciprocal gait in FES assisted walking. Paraplegia 32:680, 1994.

9. Winchester, PK, Carollo, JJ, and Wrobbel, J: Reliability of gait temporal distance measures in normal subjects with and without EMG electrodes. Gait and Posture, 4: 21-25, 1995.

10. Martin, M, Shinberg, M, Kuchibhatla, M, Ray, L, Carollo, JJ, Schenkman, M: Gait Initiation in Community-Dwelling Adults with Parkinson’s Disease: Comparison with Older and Younger Adults without the Disease; Physical Therapy, 82(6):566-577, June 2002.

11. Carollo, JJ and Matthews, D.: Strategies for Clinical Motion Analysis Based on Functional Decomposition of the Gait Cycle; Physical Medicine and Rehabilitation Clinics of North America, 13: 949-977, 2002.

12. Chang FM, Seidl AJ, Muthusamy K, Meininger AK, and Carollo, JJ: Effectiveness of Instrumented Gait Analysis in Children with Cerebral Palsy: Comparison of Outcomes. Journal of Pediatric Orthopaedics, 26(5):612-16, 2006.

13. Muthusamy, K, Seidl, AJ, Friesen, RM, Carollo, JJ, Pan, Z, Chang, FM: Rectus Femoris Transfer in Children with Cerebral Palsy: Evaluation of Transfer Site and Preoperative Indicators. Journal of Pediatric Orthopaedics, 28(6):674-678, September 2008.

Book Chapters, Invited Articles, & Reviews
1. Carollo, JJ: Clinical gait analysis. Medical Electronics. 68:95-99, 1981

2. Carollo, JJ: Development of an effective system for the clinical analysis of gait. Masters Thesis, Bioengineering Program, Texas A & M University, 1982.

3. Wenger, DR and Carollo, JJ: Biomechanics of segmental spinal instrumentation. In: Segmental Spinal Instrumentation. E.R. Luque (Ed.) Thorofare, NJ: Slack, Inc., 1984.

4. Carollo, JJ: Book Review of Electronic Devices for Rehabilitation. J.G. Webster (Ed.), In: Annals of Biomedical Engineering, 15(5):528-530, 1987.

5. Kondraske, GV, Jafari M, and Carollo JJ: Human performance measurement: Some perspectives. IEEE EMBS Magazine, 7(1):11-16, 1988.

6. Aston, JW and Carollo, JJ: Biomechanics of walking and running. In: Sports Medicine of the Lower Extremity. S. Subotnick (Ed.) Churchill-Livingstone Inc., 1988.

7. Carollo, JJ: A Model of Gait Performance Based on Functional Sub-System Quantification. Doctoral Dissertation, Joint Program in Biomedical Engineering, University of Texas at Arlington, University of Texas Southwestern Medical Center at Dallas, 1998.

8. Carollo, JJ: Clinical Gait Analysis Comes to Colorado; The Standard, 10(1): 1-3, 2000.

9. Carollo, JJ and Matthews, D: The Assessment of Human Gait, Motion, and Motor Function. In Pediatric Rehabilitation: Principles & Practice. M. Alexander & D. Matthews D (Eds.) Demos Medical Publishers, 2009.
10. Chang FM, Rhodes J, Flynn K & Carollo JJ: The Role of Gait Analysis in Treating Gait Abnormalities in Cerebral Palsy. Orthopaedic Clinics of North America, October 2010 (in press).

Refereed Scientific Abstracts
1. Wenger, DR., Wauters, K, Herring, JA, and Carollo, JJ: Comparative mechanics of segmental spinal instrumentation versus traditional Harrington instrumentation in scoliosis treatment-laboratory analysis. 15th Annual Meeting of the Scoliosis Research Society, Chicago; Transactions, 1980. [Platform]

2. Johnston, CE, Ashman, RB, and Carollo, JJ: Comparative stiffness of Zielke and Dwyer: instrumentation in three point bending. 18th Annual Meeting of the Scoliosis Research Society, New Orleans; Transactions, 1983. [Platform]

3. Carollo, JJ, and Kondraske, GV: The role of quantification in FES: A preliminary survey. 8th Annual IEEE Engineering in Medicine and Biology Society Conference; Fort Worth, Proceedings, 1986. [Platform]

4. Carollo, JJ, and Kondraske, GV: The prerequisite resources for walking: Characterization using a task analysis strategy. 9th Annual IEEE Engineering in Medicine and Biology Society Conference; Boston, Proceedings, 1987. [Platform]

5. Carollo, JJ, and Kondraske, GV: Biped model for determining selected performance resource requirements during gait. 10th Annual IEEE Engineering in Medicine and Biology Society Conference; New Orleans, Proceedings, 1988. [Platform]

6. Carollo, JJ, Kondraske, GV: A task analysis strategy for modeling and assessment of human locomotion. World Congress on Medical Physics and Biomedical Engineering, San Antonio, Texas, 1988. [Platform]

7. Carollo, JJ: A video system for real-time synchronization of muscle activity and joint moments during gait. RESNA International 1992; Toronto, Proceedings, June 6-11, 1992. [Platform]

8. Winchester, P and Carollo, JJ: Afferent stimulation of the S1, S2 dermatomes for calf spasticity in hemiparetic patients. RESNA ‘93; Las Vegas, Proceedings, June 12-17, 1993. [Platform]

9. Basdogan, C and Carollo, JJ: Variability of the physiologic cost index during free and forced walking. Southern Biomedical Engineering Conference, 1993. [Platform]

10. Carollo, JJ, Parekh, R, and Winchester, P: Calibration and force correction of the F-Scan™ foot pressure measurement system. RESNA ‘93; Las Vegas, Proceedings, June 12-17, 1993. [Platform]

11. Carollo, JJ, Wrobbel, J, and Winchester, P: Sensitivity of the EMG linear envelope to low-pass filter cut off frequency. 12th Annual Houston Conference on Biomedical Engineering, Houston Society for Engineering in Medicine and Biology, 12:136, February 1994. [Platform]

12. Winchester, P, Carollo, JJ, and Wrobbel, J: The effect of surface and intramuscular EMG electrodes on the temporal distance measures of gait. First Annual North American Clinical Gait Conference, Portland, OR, April, 1994, Published in: Gait & Posture, 2(1): 66, 1994. [Platform]

13. Carollo, JJ, Winchester, P, and Wrobbel, J: Intra-subject variability of dynamic EMG using surface and intramuscular electrodes. First Annual North American Clinical Gait Conference, Portland, OR, April, 1994, Published in: Gait & Posture, 2(1): 52, 1994. [Platform]

14. Winchester, P, Carollo, JJ, and Habasevich, R: Physiologic costs of reciprocal gait in paraplegic subjects using the Parastep® system. American College of Sports Medicine 1994 Annual Meeting, Indianapolis, IN, June, 1994, Published in: Medical Science Sports and Exercise, 26(5): S48, 1994. [Poster]

15. Gottschalk, F, Carollo JJ: Influence of prosthetic alignment on ground reaction forces and temporal distance measures of below knee amputees. International Society for Prosthetics and Orthotics 8th World Conference, Melbourne, Australia, October, 1995. [Platform]

16. Carollo, JJ, Williamson, J, Winchester, P: Comparison of Oxygen Uptake and Physiologic Cost Index (PCI) at Submaximal Walking Velocities; RESNA ‘96, Proceedings, Salt Lake City, UT, June 7-12, 1996. [Platform]

17. Carollo, JJ: Predicting overall gait performance from measures of strength, balance, and coordination: a comparison of multiple regression and threshold models; Third Annual Meeting of the North American Society of Gait and Clinical Movement Analysis, San Diego, CA, April, 1998, Published in: Gait & Posture, 7:187, 1998. [Poster]

18. Kondraske, GV, Carollo, JJ: Performance theory based performance prediction and limiting resource determination. In A.M. Sherwood (Ed), Seventeenth Annual Houston Conference on Biomedical Engineering Research, Houston, (pp 152), 1999. [Platform]

19. Carollo, JJ, Debrunner, C, He, Q, and Chang, F: Use of Hidden Markov Models to Classify Gait Abnormalities in Cerebral Palsy. 6th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Sacramento, CA, April, 2001, Published in: Gait & Posture, 13(3): 279, May, 2001. [Poster]

20. Komistek, R, Kane, T, Mahfouz, M, Carollo, JJ, Langer, T, and Dennis, D: In vivo determination of joint and muscle forces in the human leg. 70th Annual Meeting, American Academy of Orthopaedic Surgeons, Scientific Exhibit SE510, New Orleans, LA, February 5-9, 2003. [Exhibit]

21. Carollo, JJ, Nicklas, T, and Chang, FM: Validation of whole body COM calculation in children using the gait initiation task. 8th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Wilmington, DE, May 7-10, 2003. [Poster]

22. Carollo, JJ, He, Q, Debrunner, C: Gait pattern classification in children with cerebral palsy: results from a 12-state hidden Markov model created with a large training set. 9th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Lexington, KY, April 21-24, 2004. [Platform]

23. Chang F, Meininger, AK, Carollo JJ: Comparison of outcomes in children with cerebral palsy when the recommendations from gait analysis are observed. 9th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Lexington, KY, April 21-24, 2004. [Platform]

24. Threlkeld, J, Carollo JJ, Denniston, N, Kumar, R, Schenkman, M: EMG activity of anti-gravity muscles during treadmill walking with support in people with Parkinson’s disease and deep brain stimulators. 9th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Lexington, KY, April 21-24, 2004. [Poster]

25. Chang FM, Seidl AJ, Carollo JJ: Comparison of surgical recommendations for children with cerebral palsy and known outcomes with and without comprehensive gait analysis. 10th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Portland, OR. April, 2005. [Platform]

26. Chang FM, Seidl AJ, Carollo JJ: Comparison of outcomes in children with cerebral palsy when the recommendations from gait analysis are observed. Pediatric Orthopaedic Society of North America (POSNA), Ottawa, Canada, May, 2005. [Platform]

27. Valvano J, Carollo JJ, Heriza CG: Motor learning by children with cerebral palsy: Kinematic indicators of change associated with practice and physical guidance. III Step Conference: Symposium on Translating Evidence into Practice: Linking Movement, Science and Intervention, Sponsored by Section on Neurology and Pediatrics, American Physical Therapy Association, Salt Lake City, UT, July, 2005. [Platform]

28. Chang FM, Seidl AJ, Muthusamy K, Pan Z, and Carollo JJ: Outcome of rectus femoris transfer in children with cerebral palsy: evaluation of pre-operative indications and transfer site. 59th Annual Meeting of the American Academy for Cerebral Palsy and Developmental Medicine (AACPDM), Orlando, FL, September, 2005. [Poster]

29. Threlkeld, AJ, Carollo JJ, Kumar, R, Denniston, NL, Pan, Z, Schenkman, ML: Biomechanical vs. neurological influences on hypokinetic gait in Parkinson’s disease. World Parkinson Congress, Washington, DC, February 22-26, 2006. [Platform]

30. Foster, R, Zuk, J, Polaner, D, Carollo, JJ, Stallwood, L: Behavioral and physiologic correlates of children’s self-reported pain: a pilot study. 7th International Symposium on Pediatric Pain, Vancouver, British Columbia, June, 2006. [Poster]

31. Carollo, JJ, Dezman, ZD, Konieczny A: Gait initiation differs between children with hemiplegic cerebral palsy and age-matched controls. XVI Congress of the International Society of Electrophysiology and Kinesiology: ISEK 2006, Torino, Italy, June 28 – July 1, 2006. [Platform]

32. Bodkin, AW, Carollo, JJ, Glueck, DH: Home-based treadmill training in ambulatory children with hemiplegic cerebral palsy. 60th Annual Meeting of the American Academy of Cerebral Palsy and Developmental Medicine (AACPDM 2006), Boston, MA, September, 2006. [Platform]

33. Valvano, J, Carollo, JJ: Practice of a functional bimanual task by children with hemiplegic cerebral palsy: a pilot study. 60th Annual Meeting of the American Academy of Cerebral Palsy and Developmental Medicine (AACPDM 2006), Boston, MA, September, 2006. [Platform]

34. Valvano, J, Carollo, JJ, Lutz, B, Chang, F: Knee Extension at Terminal Swing: A missing critical gait event for children with spastic cerebral palsy. 1st Joint ESMAC-GCMAS Meeting (JEGM06), Amsterdam, the Netherlands, September, 2006. [Platform]

35. Muthusamy, K, Seidl, A, Friesen, RM, Pan, Z, Carollo, JJ, Chang, F: The effect of preoperative baseline values on dynamic hip function in children with cerebral palsy following psoas lengthening surgery. 1st Joint ESMAC-GCMAS Meeting (JEGM06), Amsterdam, the Netherlands, September, 2006. [Poster]

36. Muthusamy, K, Seidl, A, Friesen, RM, Pan, Z, Carollo, JJ, Chang, F: Rectus femoris transfer in children with cerebral palsy: evaluation of transfer site and preoperative indicators. 1st Joint ESMAC-GCMAS Meeting (JEGM06), Amsterdam, the Netherlands, September, 2006. [Poster]

37. Dezman, ZD, Carollo, JJ: Center of mass kinematics during gait initiation in children with cerebral palsy. 1st Joint ESMAC-GCMAS Meeting (JEGM06), Amsterdam, the Netherlands, September, 2006. [Poster]

38. Rhodes, J, Carollo, JJ, Dezman, ZD, Chang, M: Changes in hip kinematics as a result of rectus femoris transfer with and without hamstring lengthening in children with cerebral palsy. 1st Joint ESMAC-GCMAS Meeting (JEGM06), Amsterdam, the Netherlands, September, 2006. [Poster]

39. Angel, H, Valvano, J, Carollo, JJ: Dynamic measurement of intra-limb coordination: applications to equinus gait patterns in children with cerebral palsy. 12th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Springfield, MA. April, 2007. [Podium]

40. Friesen, RM, Recktenwall-Work, S, Pan, Z, Carollo, JJ, Chang, FM: Analysis of Angular Velocity of the Sagittal Knee Flexion Curve and Other Common Preoperative Indicators for Rectus Femoris Transfer in Children with Cerebral Palsy. Gait and Clinical Movement Analysis Society 13th Annual Meeting (GCMAS08), Richmond, VA, April 2-5, 2008. [Podium]

41. Valvano, J, Carollo, JJ, Pan, Z, Chang, FM: Patterns of Precursor Events Associated with Limitations in Knee Extension at Terminal Swing. Gait and Clinical Movement Analysis Society 13th Annual Meeting (GCMAS08), Richmond, VA, April 2-5, 2008. [Podium]

42. Valvano J, Davis J, Denniston N, Boulter T, Nicklas T & Carollo JJ: Grip Force Production in the Assisting Hand on Performance of a Bimanual Task: Applications to Hemiplegic Cerebral Palsy. Gait and Clinical Movement Analysis Society 14th Annual Meeting, Denver, CO, March 10-13, 2009. [Podium]

43. Tulk KNB, Recktenwall-Work SM, Friesen RM, Pan Z, Chang FM & Carollo JJ: Use of Gait Analysis and Physical Exam Data for Surgical Decision Making in the Correction of Equinus Gait Deformity in Children with Cerebral Palsy. Gait and Clinical Movement Analysis Society 14th Annual Meeting, Denver, CO, March 10-13, 2009. [Poster]

44. Torres F, Knight K, Wang Y, Carollo JJ, Chow, E & Sudhanshu, S: Improve Rehab Patient Care with Laban Specification and Wireless Sensor Tracking. Gait and Clinical Movement Analysis Society 14th Annual Meeting, Denver, CO, March 10-13, 2009. [Poster]

45. Valvano J, Worster K, Pan Z, Chang FM & Carollo JJ: Relationship between Inter-Segmental Coordination and Gait Performance in Children with Spastic Cerebral Palsy and Stiff Knee Gait. Joint meeting of the Gait and Clinical Movement Analysis Society and European Society for Movement Analysis in Adults and Children, Miami FL, May 13, 2010. [Podium]

46. Worster K, Valvano J & Carollo JJ: Use of Nonlinear Gait Analysis Methods to Elucidate Inter-Segmental Coordination Dynamics of Stiff Knee Gait in Children with Cerebral Palsy. The North American Society for the Psychology of Sport and Physical Activity Conference, Tucson, AZ, June 10-12, 2010. [Platform]

Non-refereed Scientific Abstracts
1. Carollo, JJ: Design alternatives for the clinical engineer: Session overview. 18th Annual Meeting of the Association for the Advancement of Medical Instrumentation, Dallas; Proceedings, 1983. [Platform]

2. Debrunner, C, Carollo, JJ, and He, Q: Classification of gait abnormalities using continuous hidden Markov models. World Multiconference on Systemics, Cybernetics and Informatics, Orlando, Florida, 2002 [Platform].

3. Nicklas, T, Carollo, JJ: Novel whole body center of mass calculation during functional gait tasks for clinical balance assessment. Biowest 2003, Aurora, CO, October 22, 2003. [Poster]

4. Seidl AJ, Muthusamy K, Chang F, Carollo JJ: Evidence for the efficacy of gait analysis in surgical decision making for children with cerebral palsy. Children’s Hospital Research Institute Winter Poster Session, January, 2005. [Poster]

5. Dezman Z, Kramer C, Konieczny A, Carollo JJ: A method for detecting asymmetry in gait using signal analysis. Children’s Hospital Research Institute Spring Poster Session, May, 2005. [Poster]

6. Muthusamy K, Seidl AJ, Pan Z, Carollo JJ, and Chang FM: outcome of iliopsoas lengthening in children with cerebral palsy: evaluation of pre-operative indications. Children’s Hospital Research Institute Spring Poster Session, May, 2005. [Poster]

7. Seidl AJ, Muthusamy K, Pan Z, Carollo JJ, and Chang FM: Outcome of rectus femoris tranfer in children with cerebral palsy: evaluation of pre-operative indications and transfer site. Children’s Hospital Research Institute Spring Poster Session, May, 2005. [Poster]

8. Dezman, ZD, Konieczny, A, Carollo, JJ: Event reliability and COM-COP distances during gait initiation in children with cerebral palsy and age-matched controls. Children’s Hospital Research Institute Winter Poster Session, January, 2006. [Poster]

9. Carollo, JJ, Lutz, B, Valvano, J, Chang, F: Is apparent equines your Achilles heel? The role of knee extension at terminal swing. 12th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), Springfield, MA. April, 2006. [Podium]

10. Carollo, JJ, Nicklas T, Miller, N, Chang F, & Erickson M: “Does spinal fusion for the treatment of scoliosis affect gait performance?” 2nd Musculoskeletal Research Symposium, University of Colorado, Denver, Aurora, CO, April 10, 2010. [Podium]