Corticospinal-evoked responses in lower limb muscles during voluntary contractions at varying strengths

Journal of Applied Physiology

Volumn 105, Issue 5, 2008, Pages 1527-1532

  Oya, T ^a   Hoffman, B W ^a   Cresswell, A G ^a  

^a UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

Electromyography; Motor system; Transcranial magnetic stimulation

Indexed keywords

ADULT; ARM MUSCLE; ARTICLE; ELECTROMYOGRAPHY; EVOKED MUSCLE RESPONSE; FEMALE; GASTROCNEMIUS MUSCLE; HUMAN; HUMAN EXPERIMENT; LEG MUSCLE; MAGNETIC STIMULATION; MALE; MOTOR CORTEX; MOTOR SYSTEM; MUSCLE CONTRACTION; MUSCLE FORCE; MUSCLE STRENGTH; NEUROPHYSIOLOGICAL RECRUITMENT; NORMAL HUMAN; PRIORITY JOURNAL; PYRAMIDAL TRACT; SOLEUS MUSCLE; TRANSCRANIAL MAGNETIC STIMULATION; VOLUNTARY MOVEMENT;

ADULT; ELECTRIC STIMULATION; ELECTROMYOGRAPHY; EVOKED POTENTIALS, MOTOR; FEMALE; HUMANS; LOWER EXTREMITY; MALE; MOTOR CORTEX; MUSCLE CONTRACTION; MUSCLE STRENGTH; MUSCLE, SKELETAL; PYRAMIDAL TRACTS; RECRUITMENT, NEUROPHYSIOLOGICAL; TIME FACTORS; TORQUE; TRANSCRANIAL MAGNETIC STIMULATION; VOLITION; YOUNG ADULT;

EID: 57349138819     PISSN: 87507587     EISSN: 15221601     Source Type: Journal    
DOI: 10.1152/japplphysiol.90586.2008     Document Type: Article

References (32)

1. Bawa P, Lemon RN. Recruitment of motor units in response to transcranial magnetic stimulation in man. J Physiol 471: 445-464, 1993.
2. Bigland B, Lippold OC. Motor unit activity in the voluntary contraction of human muscle. J Physiol 125: 322-335, 1954.
3. Brouwer B, Ashby P. Corticospinal projections to upper and lower limb spinal motoneurons in man. Electroencephalogr Clin Neurophysiol 76: 509-519, 1990.
4. Brouwer B, Ashby P, Midroni G. Excitability of corticospinal neurons during tonic muscle contractions in man. Exp Brain Res 74: 649-652, 1989.
5. Capaday C, Stein RB. A method for simulating the reflex output of a motoneuron pool. J Neurosci Methods 21: 91-104, 1987.
6. Cresswell AG, Löscher WN, Thorstensson A. Influence of gastrocnemius muscle length on triceps surae torque development and electromyographic activity in man. Exp Brain Res 105: 283-290, 1995.
7. de Noordhout AM, Rapisarda G, Bogacz D, Gérard P, De Pasqua V, Pennisi G, Delwaide PJ. Corticomotoneuronal synaptic connections in normal man: an electrophysiological study. Brain 122: 1327-1340, 1999.
8. Di Lazzaro V, Oliviero A, Profice P, Meglio M, Cioni B, Tonali P, Rothwell JC. Descending spinal cord volleys evoked by transcranial magnetic and electrical stimulation of the motor cortex leg area in conscious humans. J Physiol 537: 1047-1058, 2001.
9. Di Lazzaro V, Restuccia D, Oliviero A, Profice P, Ferrara L, Insola A, Mazzone P, Tonali P, Rothwell JC. Effects of voluntary contraction on descending volleys evoked by transcranial stimulation in conscious humans. J Physiol 508: 625-633, 1998.
10. Gelli F, Del Santo F, Popa T, Mazzocchio R, Rossi A. Factors influencing the relation between corticospinal output and muscle force during voluntary contractions. Eur J Neurosci 25: 3469-3475, 2007.
11. Goldberg LJ, Derfler B. Relationship among recruitment order, spike amplitude, and twitch tension of single motor units in human masseter muscle. J Neurophysiol 40: 879-890, 1977.
12. Grillner S, Udo M. Recruitment in the tonic stretch reflex. Acta Physiol Scand 81: 571-573, 1971.
13. Iles JF, Pisini JV. Cortical modulation of transmission in spinal reflex pathways of man. J Physiol 455: 425-446, 1992.
14. Jackson A, Baker SN, Fetz EE. Tests for presynaptic modulation of corticospinal terminals from peripheral afferents and pyramidal tract in the macaque. J Physiol 573: 107-120, 2006.
15. Jones KE, Bawa P. Responses of human motoneurons to Ia inputs: effects of background firing rate. Can J Physiol Pharmacol 73: 1224-1234, 1995.
16. Jones KE, Bawa P. A comparison of human motoneuron data to simulated data using cat motoneuron models. J Physiol Paris 93: 43-59, 1999.
17. Kudina LP. Excitability of firing motoneurones tested by Ia afferent volleys in human triceps surae. Electroencephalogr Clin Neurophysiol 69: 576-580, 1988.
18. Kukulka CG, Clamann HP. Comparison of the recruitment and discharge properties of motor units in human brachial biceps and adductor pollicis during isometric contractions. Brain Res 219: 45-55, 1981.
19. Lavoie BA, Cody FW, Capaday C. Cortical control of human soleus muscle during volitional and postural activities studied using focal magnetic stimulation. Exp Brain Res 103: 97-107, 1995.
20. Löscher WN, Cresswell AG, Thorstensson A. Excitatory drive to the alpha-motoneuron pool during a fatiguing submaximal contraction in man. J Physiol 491: 271-280, 1996.
21. Martin PG, Gandevia SC, Taylor JL. Output of human motoneuron pools to corticospinal inputs during voluntary contractions. J Neurophysiol 95: 3512-3518, 2006.
22. Matthews PB. The effect of firing on the excitability of a model motoneurone and its implications for cortical stimulation. J Physiol 518: 867-882, 1999.
23. Milner-Brown HS, Stein RB, Yemm R. Changes in firing rate of human motor units during linearly changing voluntary contractions. J Physiol 230: 371-390, 1973.
24. Moritz CT, Barry BK, Pascoe MA, Enoka RM. Discharge rate variability influences the variation in force fluctuations across the working range of a hand muscle. J Neurophysiol 93: 2449-2459, 2005.
25. Nielsen J, Petersen N. Is presynaptic inhibition distributed to corticospinal fibres in man? J Physiol 477: 47-58, 1994.
26. Nielsen J, Petersen N, Deuschl G, Ballegaard M. Task-related changes in the effect of magnetic brain stimulation on spinal neurones in man. J Physiol 471: 223-243, 1993.
27. Petersen NT, Taylor JL, Gandevia SC. The effect of electrical stimulation of the corticospinal tract on motor units of the human biceps brachii. J Physiol 544: 277-284, 2002.
28. Tanji J, Kato M. Recruitment of motor units in voluntary contraction of a finger muscle in man. Exp Neurol 40: 759-770, 1973.
29. Taylor JL, Allen GM, Butler JE, Gandevia SC. Effect of contraction strength on responses in biceps brachii and adductor pollicis to transcranial magnetic stimulation. Exp Brain Res 117: 472-478, 1997.
30. Taylor JL, Butler JE, Allen GM, Gandevia SC. Changes in motor cortical excitability during human muscle fatigue. J Physiol 490: 519-528, 1996.
31. Todd G, Taylor JL, Gandevia SC. Measurement of voluntary activation of fresh and fatigued human muscles using transcranial magnetic stimulation. J Physiol 551: 661-671, 2003.
32. Ugawa Y, Uesaka Y, Terao Y, Hanajima R, Kanazawa I. Magnetic stimulation of corticospinal pathways at the foramen magnum level in humans. Ann Neurol 36: 618-624, 1994.