Carol J. Mottram (MacGillis), Ph.D., P.T.
Research Interests
- Mechanisms contributing to altered motoneuron excitability in spastic hemiparetic stroke survivors
- Adaptations in neural control of muscle fatigue
- Motor unit discharge characteristics with changes in task and intensity
Current Research Projects
- Contribution of Intrinsic Properties to Altered Motoneuron Excitability in Stroke Survivors. Purpose: to assess the contribution of intrinsic cellular properties to altered motoneuron excitability during voluntary ramp contractions with the elbow flexor muscles in stroke survivors.
Education
- 2005: Ph.D. Integrative Physiology, University of Colorado, Boulder, Colorado.
- 1991: B.S. Physical Therapy, Marquette University, Milwaukee, Wisconsin.
Professional Experience
- 2005-date: Post-doctoral Research Associate, Brinson Stroke Fellow, Single Motor Unit Laboratory, Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, Illinois. Mentor: Professor William Zev Rymer, M.D., Ph.D.
- 2000-2005: Graduate Student, Neurophysiology of Movement Laboratory, Department of Integrative Physiology, University of Colorado, Boulder, Colorado. Mentor: Professor Roger M. Enoka, Ph.D.
- 2001-2002: Lead Teaching Assistant, Sensorimotor Neuroscience. University of Colorado, Boulder, Colorado.
- 2000-2001: Teaching Assistant, Biomechanics. University of Colorado, Boulder, Colorado.
- 2000-2002: Staff Physical Therapist (part time) PRO Physical Therapy, Boulder, Colorado.
- 1996-2000: Staff Physical Therapist and Orthopedic Clinic Specialist/Clinical Mentor: Regions Hospital Outpatient Physical Therapy Clinic, Saint Paul, Minnesota. Focus: outpatient orthopedic spine and extremity sports medicine.
- 1994-1996: Staff Physical Therapist: Rehabilitation Services, Minnetonka, Minnesota. Focus: inpatient and outpatient rehabilitation.
- 1992-1994: Staff Physical Therapist: Vail Center for Physical Therapy at Vail Valley Medical Center, Vail, Colorado. Focus: outpatient orthopedics and extremity sports medicine.
- 1991-1992: Staff Physical Therapist: Saint Luke's Medical Center and Sports and Work Injury Clinic, Milwaukee, Wisconsin. Focus: inpatient acute care, stroke rehabilitation, outpatient orthopedics and sports medicine.
Funding / Honors
Professional Societies
Recent Publications
- Mottram CJ, Hunter SK, Rochette L, Anderson MK, and Enoka RM Time to Task Failure Varies With the Gain of the Feedback Signal for Women, but not for Men. Experimental Brain Research, 174: 575-587, 2006.
- Mottram CJ, Maluf KS, Stephenson JL, Anderson MK, and Enoka RM Prolonged Vibration of the Biceps Brachii Tendon Reduces Time to Failure when Maintaining Arm Position with a Submaximal Load. Journal of Neurophysiology, 95: 1185-1193, 2006.
- Mottram CJ, Christou EA, Meyer FG, and Enoka RM Frequency Modulation of Motor Unit Discharge has Task-Dependent Influences on Fluctuations in Motor Output. Journal of Neurophysiology, 94: 2878-2887, 2005.
- Mottram CJ, Jakobi JM, Semmler JG, and Enoka RM Motor Unit Activity Differs with Load Type During a Fatiguing Contraction. Journal of Neurophysiology, 93: 1381-1392, 2005.
- Hunter S.K., Lepers R., MacGillis CJand Enoka RM Activation Among the Elbow Flexor Muscles differs when Maintaining Arm Position during a Fatiguing Contraction. Journal of Applied Physiology, 94: 2439-2447, 2003.
Abstracts
- Mottram CJ, Suresh NL, Chikando CN, and Rymer WZ. The role of intrinsic motoneuron properties in stroke induced spasticity. Program No. 652.6. 2006. Abstract Viewer/Itinerary Planner. Atlanta, GA: Society for Neuroscience, 2006. Online.
- Mottram CJ, MalufKS, Stephenson JL, Anderson MK, and Enoka RM. Vibration of the biceps brachii tendon reduces time to failure when maintaining limb position during a fatiguing contraction. Journal of Neurologic Physical Therapy, 29(4): December 2005.
- Mottram CJ, Anderson MK, Hunter SK, and Enoka RM. Motor Unit Activity Differs with the Gain of the Position-Feedback Signal for a Submaximal Fatiguing Contraction. Submitted for American College of Sports Medicine Annual Meeting, Nashville, TN, 2005.
- Mottram CJ, Maluf KS, Stephenson JL, and Enoka RM. Sub-threshold vibration of the biceps brachii tendon does not influence time to task failure for a submaximal fatiguing contraction. Program No. 188.7. 2004. Abstract Viewer / Itinerary Planner. San Diego, California: Society for Neuroscience, 2004, Online.
- Christou EA,Mottram CJ, and Enoka RM. Modulation of motor unit discharge has task-dependent influences on fluctuations in motor output. American College of Sports Medicine conference, Indianapolis, 2004; oral presentation by EAC.
- MacGillis CJ, Hunter SK, Rochette, L. and Enoka RM. Time to task failure decreases with an increase in the gain of the position-feedback signal for a submaximal fatiguing contraction with the elbow flexor muscles. Program No. 392.14. 2003. Abstract Viewer / Itinerary Planner. Washington, DC: Society for Neuroscience, 2003, Online.
- MacGillis CJ, Semmler JG, Jakobi JM, and Enoka RM. Motor unit discharge differs with intensity and type of isometric contraction performed with the elbow flexor muscles. Medicine and Science in Sports and Exercise 35(5); S280, 2003.
- MacGillis CJ, Hunter SK, Lepers R, and Enoka RM. Activation differs among the elbow flexor muscles during a submaximal fatiguing contraction. Medicine and Science in Sports and Exercise 34(5); S117, 2002, and International Symposium: Motoneurones and Muscles the Output Machinery, 2002.
- Jakobi JM, MacGillis CJ, Enoka RM. Motor unit recruitment and discharge rate differ for mechanically equivalent elbow flexor tasks. Program No. 768.13. 2002. Abstract Viewer / Itinerary Planner. Washington, DC: Society for Neuroscience, 2002. Online, and. International Symposium: Motoneurones and Muscles the Output Machinery, 2002.
- Hunter SK, MacGillis CJ, Lepers RL, and Enoka RM. Activation differs among the elbow flexor muscles with variation in limb support for a submaximal fatiguing contraction. Program No. 768.9. 2002. Abstract Viewer / Itinerary Planner. Washington, DC: Society for Neuroscience, 2002.