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Thorsten Rudroff, Ph.D.Department of Integrative
Physiology |
Personal Information
Birthplace: Cuxhaven, Germany
Citizenship: German
Marital Status: Single
Hobbies: Work, Fussball (Soccer), Weightlifting
Son: Tyler D. Rudroff
Education
German Sports University, Cologne, Germany, B.S. 1986, Sports and
Exercise Science
German Sports University, Cologne, Germany M.S. 1989, Sports and Exercise
Science
German Association of Sports Therapy, M.S. 1997, Physical Therapy
University of Constance, Germany, Ph.D. 2001, Sports and Exercise Science
(summa cum laude)
University of Colorado, Boulder, CO, Postdoc, 2002-2007, Neurophysiology of Movement
University of Colorado, Boulder, CO, Senior Research Associate, 2008-Date, Neurophysiology of Movement
Research Interests
Neural Mechanisms in Muscle Fatigue
Muscle Fatigue in Children
Noninvasive Imaging Techniques
Current Research Projects
Fatigue-Related Modulation of Motor Unit Discharge Rate
Muscle Activation during Fatiguing Contractions measured by Positron Emission
Tomography (PET) and Surface EMG
Work-Energy Relations and Muscle Activation during Fatiguing Contractions
Collaborators
USA
- Rodger Kram, Ph.D. - University of Colorado, Boulder, Colorado
- Michael Torry, Ph.D. - Steadman-Hawkins Clinic, Vail
- William Claude Klingensmith III, MD - University of Colorado Health Sciences Center, Denver
- Zachary A. Riley, Ph.D. - Indiana University-Purdue University Indianapolis
Canada
- Victoria Galea, Ph.D. - McMaster University, Hamilton, Ontario
Europe
- Kari Kalliokoski Ph.D. - Turku PET Centre, Finland
- Eleftherios Kellis, Ph.D. - University of Thessaloniki, Greece
- Stefan Vollmar, Ph.D. - Max Plank Institute for Neurological Research, Germany
Africa
- Alberto Méndez Villanueva, Ph.D. - ASPIRE, Academy of Sports Excellence, Doha, Qatar
Research and Professional Experience
1990 – 1995 Exercise Physiologist, Rehabilitation Center
Bonn, Germany
1995 – 1997 Sports Physical Therapist, Rehabilitation Clinic
Bavaria, Deggendorf, Germany
1997 – 2000 Head Physical Therapist, Rehabilitation Clinic ARZ, Deggendorf, Germany
1997 – 2001 Research Associate, Department of Sports Science,
University of Constance, Germany
2007 (April-May) Visiting Scientist, Turku Pet Centre,
University of Turku, Finland
2002 – 2007 Post-Doctoral Research Associate, Neurophysiology
of Movement Laboratory, Department of Integrative Physiology, University of
Colorado, Boulder
2008- Date Senior Research Associate, Neurophysiology of Movement Laboratory, Department of Integrative Physiology, University of Colorado, Boulder
Honors and Awards
2003 Award from the University of Constance for best doctoral
dissertation.
Professional Societies
2003–Date Member, Society for Neuroscience
Ad Hoc
Reviewer
Muscle & Nerve
Journal of Applied Physiology
Medicine and Science in Sports and Exercise
Journal of Electromyography and Kinesiology
European Journal of Applied Physiology
Archives of Physical Medicine and Rehabilitation
BMC Musculoskeletal Disorders
Journal of Neuroscience Methods
Journal of Motor Behavior
Journal of Applied Biomechanics
Scandinavian Journal of Medicine & Science in Sports
Publications
Original Research –
Papers
Baudry S, Rudroff T, Pierpont LA, Enoka RM. Load type influences motor unit recruitment in biceps brachii during a sustained contraction. J Neurophysiol 102: 1725-35, 2009
Staudenmann D, Rudroff T, Enoka RM. Supination torque and associated electromyographic activity varies during a sustained elbow flexor contraction but does not influence the time to task failure. Muscle & Nerve 40: 231-9, 2009.
Rudroff T, Jordan K, Enoka J, Matthews S, Baudry S, Enoka RM. The discharge of biceps brachii motor units is modulated by load compliance and forearm posture. Exp Brain Res. Under review.
Mendez-Villanueva
A, Baudry S, Riley Z, Rudroff T. Influence of rest duration on muscle activation during submaximal intermittent contractions with the elbow flexor muscles.
J Sports Med Phys Fitness 49: 255-64, 2009.
Rudroff T, Staudenmann, Enoka RM. Electromyographic measures of muscle activation and changes in muscle architecture in human elbow flexor muscles during fatiguing contractions. J Appl Physiol 104: 1720-6, 2009.
Rudroff T, Christou EA, Poston B, Bojsen-Møller J, Enoka RM. Time to failure of a sustained contraction is predicted by target torque and initial EMG bursts in elbow flexor muscles. Muscle & Nerve 35: 657-666, 2007.
Rudroff T, Barry BK, Stone AL, Barry CJ, Enoka RM. Accessory muscle activity contributes to the variation in time to task failure for different arm postures and loads. J Appl Physiol 102(3): 1000-6, 2007.
Christou EA, Rudroff T, Enoka JA, Meyer F, Enoka RM. Discharge rate during low-force isometric contractions influences motor unit coherence below 15 Hz but not motor unit synchronization. Exp Brain Res 178(3): 285-95, 2007.
Rudroff T, Poston B, Shin IS, Bojsen-Møller J, Enoka RM. Net excitation of the motor unit pool varies with load type during fatiguing contractions. Muscle & Nerve 31: 78-87, 2005.
Rudroff T. Functional capability is enhanced with semitendinosus than patellar tendon ACL repair. Med Sci Sports Exerc 35: 1486-92, 2003.
Rudroff T, Riehle H. Movement patterns and neuromuscular activation after ACL-reconstruction with the patellar- and semitendinosus tendon. In: Congress book of the DVS-Section Biomechanics Constance, Germany, pp. 194-200, 2001.
Original Research – Abstracts
Rudroff T, Jesunathadas M, Gibb J, Enoka RM. The association between fluctuations in foot acceleration and muscle architecture of the tibialis anterior. Society of Neuroscience, 40th Annual Meeting, 2009.
Galea V, Nguyen D, Rudroff T, Szechtman H, Woody EZ. Altered perception affects action in hypnoticomotor tasks. Progress in Motor Control VII, Marseille, 2009.
Rudroff T, Justice J, Matthews S, Enoka RM. Differences in time to task failure are not explained by the work performed by the elbow flexor muscles. European Congress of Sport Sciences, Estoril, Portugal, 2008.
Justice J, Rudroff T, Matthews S, Enoka RM. Time to failure and muscle activation differ with load type during fatiguing contractions with the knee extensors. Society for Neuroscience, 39th Annual Meeting, 2008.
Baudry S, Rudroff T, Pierpont LA, Enoka RM. Motor unit recruitment threshold decreased when maintaining forearm position with a submaximal load. Mechanisms of Plasticity and Disease in Motoneurons, University of Washington School of Medicine, Seattle, Washington, June 26-28, 2008.
Rudroff T, Staudenmann D, Enoka RM. Changes in muscle activity and architecture during fatiguing contractions with the elbow flexor muscles. ECSS European College of Sports Science. Annual Congress in Jyväskylä, Finland, 2007.
Rudroff T, Bojsen-Møller J, Seppänen M, Hirvonen J, Enoka RM, Kalliokoski K. Muscle activity and [15F]-fluoro-deoxy-glucose uptake in muscles and brain during submaximal fatiguing contractions with the elbow flexor muscles. European Congress of Sport Sciences, Jyväskylä, Finland, 2007.
Mendez-Villanueva A, Rudroff T, Riley ZA, Enoka RM. Recovery time between intermittent contractions influences the rate of increase in motor unit activity and the time to task failure. European Congress of Sport Sciences, Jyväskylä, Finland, 2007.
Rudroff T, Enoka JA, Jordan, K., Enoka RM. Motor unit discharge rate declines when supporting an inertial load with the forearm supinated. Society for Neuroscience, 38th Annual Meeting 2007
Staudenmann D, Rudroff T, Enoka RM. Supination forces influence elbow flexor activity during submaximal fatiguing contractions. Society for Neuroscience, 38th Annual Meeting 2007.
Rudroff T, Bojsen-Møller J, Poston B, Enoka RM. Transient recruitment of motor units is altered in weightlifters during sustained contractions. Medicine and Science in Sports and Exercise 38: S444, 2006.
Rudroff T, Enoka JA, Enoka RM. Limb position influences task-related differences in motor unit discharge during sustained contractions. Society for Neuroscience, 37th Annual Meeting 2006.
Rudroff T, Christou EA, Bojsen-Møller J, Poston B, Enoka RM. Forearm position influences the muscle activity that limits the duration of a sustained submaximal contraction. Society for Neuroscience, 36th Annual Meeting 2005.
Maluf KS, Hunter SK, Mottram CJ, Rudroff T, Enoka RM. Mechanisms of task failure during fatiguing contractions in healthy humans. Workshop on Investigation of Human Muscle Function In Vivo, Nashville, TN, 2005.
Rudroff T, Barry BK, Stone AL, Enoka RM. Time to failure during fatiguing contractions is influenced by the EMG activity of accessory muscles. Medicine and Science in Sports and Exercise 37: S395, 2005.
Christou EA, Rudroff T, Moritz CT, Enoka RM. The variability in motor unit discharge is determined by low-frequency oscillations in discharge rate. Society for Neuroscience, 35th Annual Meeting 2004.
Rudroff T, Bojsen-Møller J, Poston B, Enoka RM. Task-related differences in muscle fatigue are influenced by limb position. Society for Neuroscience, 35th Annual Meeting 2004.
Enoka RM, Rudroff T, Hunter SK, Maluf K. Task requirements and the mechanisms that limit time to failure during submaximal fatiguing contractions. Proceedings of the Xth International Symposium on Motor Control, Sofia, Bulgaria, September 25-27, 2004.
Rudroff T, Poston B, Bojsen-Møller J, Enoka RM. Strength-matched men and women perform similarly on fatiguing contractions with arm muscles. Medicine and Science in Sports and Exercise 36: S276, 2004.
Rudroff T. Improvement in functional capability is greater after ACL reconstruction with semitendinosus compared with patellar tendon autograft. Medicine and Science in Sports and Exercise 35: S222, 2003.
Rudroff T, Poston B, Weisbach
PC, Shin IS, Forst E, & Enoka RM. Metabolite
accumulation was similar in the elbow flexor muscles after two types of
fatiguing contractions performed for a similar
duration. Society
for Neuroscience, 34th Annual Meeting 2003.
Invited
Presentations
Postural Muscle Activation During
Fatiguing Contractions. Rocky Mountain Chapter, American College of
Sports Medicine, Annual Meeting 2008
Work-Energy Relations and Muscle
Activation During Fatiguing Contractions. Turku PET Centre,
University of Turku, Finland, 2007
Rudroff T. Kinesiological Fine Wire EMG. A practical
introduction to fine wire EMG application. Version 1.0 December 2008.
Invited Book
Chapters
Rudroff T, Riehle H. Bewegungsverhalten und
neuromuskuläre Aktivierung nach vorderer Kreuzbandrekonstruktion mit dem
Patellar- und Semitendinosustransplantat. In: Biomechanik als
Anwendungsforschung Riehle T (Ed). Universität Konstanz, Germany, pp
194-200, 2001.
Current Research Support
5 R01 AG 09000-15 Enoka (PI) 2/15/05–1/31/10
NIH/NIA
Steadiness in Older Adults
To identify those feature of the motor output from the spinal cord that contribute to the decline in steadiness with advancing age and how these adaptations influence muscle function.
Role:
Postdoctoral Fellow
1R21 AG033744A-01 Rudroff (PI) 12/01/09–11/30/11
NIH/NIA
Muscle Energetics during
Fatiguing Contractions in Young and Old Men
To compare the distribution of
activation and energy utilization among arm and accessory muscles in young and
old men during two types of fatiguing contractions with the elbow flexor
muscles.
Role: PI