Research Topics
| Ole K AndersenSummaryAffiliation: Aalborg University Country: Denmark Publications
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Detail Information
Publications
Modulation of heat evoked nociceptive withdrawal reflexes by painful intramuscular conditioning stimulationOle K Andersen
Center for Sensory Motor Interaction, Aalborg University, Aalborg, Denmark
Exp Brain Res 174:775-80. 2006....- Gradual enlargement of human withdrawal reflex receptive fields following repetitive painful stimulationOle K Andersen
Department of Health Science and Technology, Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajers Vej 7, D3, DK 9220 Aalborg, Denmark
Brain Res 1042:194-204. 2005..Furthermore, the motor programme task controls the reflex sensitivity within the reflex receptive field and, hence, the sensitivity of the temporal summation mechanism... - Expansion of nociceptive withdrawal reflex receptive fields in spinal cord injured humansOle K Andersen
Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7, D3, Aalborg DK 9220, Denmark
Clin Neurophysiol 115:2798-810. 2004..In the present study, withdrawal reflex receptive field (RRF) was determined in complete SCI subjects (N=9)... - Secondary heat hyperalgesia detected by radiant heat stimuli in humans: evaluation of stimulus intensity and durationHiroyuki Sumikura
Laboratory for Experimental Pain Research, Center for Sensory-Motor Interaction, Aalborg University, Denmark
Somatosens Mot Res 22:233-7. 2005..The present study shows that long duration (350-750 ms) and low intensity (0.8 and 1.0 x PT) radiant heat stimuli were adequate to detect secondary heat hyperalgesia... - Repetitive painful stimulation produces an expansion of withdrawal reflex receptive fields in humansErika G Spaich
Center for Sensory Motor Interaction SMI, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
Artif Organs 29:224-8. 2005.... - Orderly activation of human motor neurons using electrical ramp prepulsesKristian Hennings
Center for Sensory Motor Interaction SMI, Department of Health Science and Technology, Aalborg University, Frederik Bajers Vej 7 D3 203, 9220 Aalborg, Denmark
Clin Neurophysiol 116:597-604. 2005..The present study investigated the possibility for changing the recruitment order of electrical stimuli with sub-threshold ramp prepulses... - Long-term facilitation of nociceptive withdrawal reflexes following low-frequency conditioning electrical stimulation: a new model for central sensitization in humansJose A Biurrun Manresa
Center for Sensory Motor Interaction, Aalborg University, Aalborg Øst, Denmark
Eur J Pain 14:822-31. 2010.... - Facilitation and inhibition of withdrawal reflexes following repetitive stimulation: electro- and psychophysiological evidence for activation of noxious inhibitory controls in humansPrem Bajaj
Laboratory for Experimental Pain Research, Department of Health Science and Technology, Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajers Vej 7D 3, DK 9220 Aalborg, Denmark
Eur J Pain 9:25-31. 2005.... - Modulation of lower limb withdrawal reflexes during gait: a topographical studyErika G Spaich
Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajers Vej 7 D3, DK 9220 Aalborg, Denmark
J Neurophysiol 91:258-66. 2004..Minimal kinematic responses were observed during stance in contrast to swing phase. Modulation of the reflex probably ensures an appropriate withdrawal but primarily secures balance and continuity of movement... - Exteroceptive aspects of nociception: insights from graphesthesia and two-point discriminationCarsten Dahl Mørch
Center for Sensory Motor Interaction, Health Science and Technology, Aalborg University, Fredrik Bajersvej 7, D3, DK 9220 Aalborg, Denmark
Pain 151:45-52. 2010.... - Withdrawal reflexes examined during human gait by ground reaction forces: site and gait phase dependencyJonas Emborg
Center for Sensory Motor Interaction SMI, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D 3, 9220 Aalborg, Denmark
Med Biol Eng Comput 47:29-39. 2009..For stimulations near toe-off, withdrawal was primarily accomplished by ankle dorsiflexion, while the strategy for stimulations at heel-off was flexion of the knee and hip joints... - Comparison of hyperalgesia induced by capsaicin injection and controlled heat injury: effect on temporal summationAysen Yucel
Laboratory for Experimental Brain Research, Center for Sensory-Motor Interaction, Aalborg University, Denmark
Somatosens Mot Res 21:15-24. 2004..In conclusion, the temporal summation mechanism for mechanical stimuli was facilitated in the secondary hyperalgesic area... - Foot-sole reflex receptive fields for human withdrawal reflexes in symmetrical standing positionOle K Andersen
Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7, D3 9220 Aalborg, Denmark
Exp Brain Res 152:434-43. 2003..In the present standing conditions, the ankle extensor played a dominant role in the withdrawal pattern in contrast to previous studies during sitting, relaxed conditions... - Test-retest reliability of the nociceptive withdrawal reflex and electrical pain thresholds after single and repeated stimulation in patients with chronic low back painJose A Biurrun Manresa
Integrative Neuroscience Group, Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7, 9220, Aalborg Øst, Denmark
Eur J Appl Physiol 111:83-92. 2011..83 and 0.56, respectively. In conclusion, the NWR-T and the EP-T are reliable assessment tools for assessing the sensitivity of spinal nociceptive pathways in patients with chronic pain... - Introducing the reflex probability maps in the quantification of nociceptive withdrawal reflex receptive fields in humansJosé A Biurrun Manresa
Integrative Neuroscience Group, Center for Sensory Motor Interaction, Aalborg University Fredrik Bajers Vej 7, 9220 Aalborg Øst, Denmark
J Electromyogr Kinesiol 21:67-76. 2011..The present analysis can be useful in order to identify the most adequate stimulation parameters and quantification variables for RRF assessment in experimental and clinical pain research... - Homotopic and heterotopic variation in skin blood flow and temperature following experimental muscle pain in humansJing Lei
Laboratory for Experimental Pain Research, Center for Sensory Motor Interaction SMI, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7D 3, DK 9220 Aalborg, Denmark
Brain Res 1232:85-93. 2008..This suggested that both homotopic and heterotopic vascular reactions triggered by hypertonic saline stimulation of thin muscle afferent fibers were a neurogenically associated reaction... - Development of a data acquisition and analysis system for nociceptive withdrawal reflex and reflex receptive fields in humansJose A Biurrun Manresa
Integrative Neuroscience group within the Center for Sensory Motor Interaction SMI, Dept of Health, Science and Technology, Aalborg University, Fredrik Bajers Vej 7, Aalborg Øst, 9220 Denmark
Conf Proc IEEE Eng Med Biol Soc 2010:6619-24. 2010..In this article, a brief review of NWR and RRF analysis is presented, the system features are described in detail and its present and future applications are discussed... - Secondary heat hyperalgesia induced by melittin in humansHiroyuki Sumikura
Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
Eur J Pain 10:121-5. 2006.... - Increased H-reflex response induced by intramuscular electrical stimulation of latent myofascial trigger pointsHong You Ge
Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D 3, Aalborg, Denmark
Acupunct Med 27:150-4. 2009..The purpose of this current study was to explore whether an H-reflex response could be elicited from intramuscular electrical stimulation. If so, to assess the possibility of increased reflex response at MTrPs... - Spatial temperature distribution in human hairy and glabrous skin after infrared CO2 laser radiationKen S Frahm
Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajers Vej 7D 3, DK 9220 Aalborg, Denmark
Biomed Eng Online 9:69. 2010..The laser energy is absorbed by the water content in the most superficial layers of the skin. The deeper located nociceptors are activated by passive conduction of heat from superficial to deeper skin layers... - Electrophysiological assessment of painLars Arendt-Nielsen
Center for Sensory-Motor Interaction, Laboratory for Experimental Pain Research, Aalborg University, DK-9220 Aalborg, Denmark
Suppl Clin Neurophysiol 59:241-9. 2006 - Breakdown of accommodation in nerve: a possible role for persistent sodium currentKristian Hennings
Center for Sensory Motor Interaction SMI, Aalborg University, Frederik Bajers Vej D3 203, 9220 Aalborg Ø, Denmark
Theor Biol Med Model 2:16. 2005..The aim of the present study was to elucidate the biophysical mechanism of breakdown of accommodation, which at present is unknown... - Methods for gait event detection and analysis in ambulatory systemsJan Rueterbories
Center for Sensory Motor Interaction SMI, Department of Health Science and Technology, 9220 Aalborg, Denmark
Med Eng Phys 32:545-52. 2010..However additional effort is needed to minimize donning/doffing efforts, to overcome cosmetical aspects, and to implement those systems into closed loop ambulatory devices... - Heat hyperalgesia in humans: assessed by different stimulus temperature profilesAysen Yucel
Laboratory for Experimental Pain Research, Center for Sensory-Motor Interaction, Aalborg University, Aalborg, Denmark
Eur J Pain 6:357-64. 2002..There were no heat hyperalgesia in the control arm. In conclusion, hyperalgesia to suprathreshold heat stimuli was observed in the secondary hyperalgesic area and C-fibres play an important role in the primary hyperalgesia to heat... - Noninvasive assessment of the facilitation of the nociceptive withdrawal reflex by repeated electrical stimulations in conscious dogsAlessandra Bergadano
Department of Clinical Veterinary Medicine, Anaesthesiology Division, Vetsuisse Faculty, University of Berne, Länggassstrasse 124, CH 3001 Berne, Switzerland
Am J Vet Res 68:899-907. 2007.... - Investigation of the facilitation of the nociceptive withdrawal reflex evoked by repeated transcutaneous electrical stimulations as a measure of temporal summation in conscious horsesClaudia Spadavecchia
Anesthesiology Section, Department of Clinical Veterinary Sciences, University of Berne, Langassstrasse 124, 3012 Berne, Switzerland
Am J Vet Res 65:901-8. 2004.... - Psychophysical 'perceptual maps' of heat and pain sensations by direct localization of CO2 laser stimuli on the skinJorg Trojan
University of Mannheim, Otto Selz Institute for Psychology and Educational Science, Laboratory for Clinical Psychophysiology, Schloss EW 182, 68131 Mannheim, Germany
Brain Res 1120:106-13. 2006..R2>0.80 in 10 out of 12 subjects). Nonlinear models were advantageous in some subjects only. Our method can be useful in assessing inter-individual differences or experimentally induced shifts in somatotopic processing... - Evidence for spinal cord hypersensitivity in chronic pain after whiplash injury and in fibromyalgiaBorut Banic
Division of Pain Therapy, Department of Anesthesiology, University Hospital of Bern, Inselspital, 3010 Bern, Switzerland
Pain 107:7-15. 2004..This can cause exaggerated pain following low intensity nociceptive or innocuous peripheral stimulation. Spinal hypersensitivity may explain, at least in part, pain in the absence of detectable tissue damage... - Comparison of nociceptive withdrawal reflexes and recruitment curves between the forelimbs and hind limbs in conscious horsesClaudia Spadavecchia
Department of Clinical Veterinary Sciences, University of Berne, Switzerland
Am J Vet Res 64:700-7. 2003..These results provide a basis for use of NWRs in studies on nociceptive modulation in horses... - Quantitative assessment of nociception in horses by use of the nociceptive withdrawal reflex evoked by transcutaneous electrical stimulationClaudia Spadavecchia
Department of Clinical Veterinary Medicine, University of Berne, Switzerland
Am J Vet Res 63:1551-6. 2002..CONCLUSIONS AND CLINICAL RELEVANCE: Results of our study indicate that it is possible to record NWR in conscious standing horses, to define a reflex threshold, and to measure reflexes in response to increasing stimulus intensity... - Effect of romifidine on the nociceptive withdrawal reflex and temporal summation in conscious horsesClaudia Spadavecchia
Anesthesiology Section, Department of Clinical Veterinary Sciences, Vetsuisse Faculty, University of Berne, Switzerland
Am J Vet Res 66:1992-8. 2005..Romifidine can be included in analgesic and anesthetic protocols to provide additional analgesia in horses... - Quantitative assessment of nociceptive processes in conscious dogs by use of the nociceptive withdrawal reflexAlessandra Bergadano
Department of Clinical Veterinary Medicine, Anaesthesiology Division, Vetsuisse-Faculty, University of Berne, , PB 8466, CH-3001 Berne, Switzerland
Am J Vet Res 67:882-9. 2006..Results suggest that NWR evaluation may enable quantification of nociceptive system excitability and efficacy of analgesics in individual dogs...