Effects of aging on force variability, single motor unit discharge patterns, and the structure of 10, 20, and 40 Hz EMG activity

Neurobiology of Aging

Volumn 24, Issue 1, 2003, Pages 25-35

  Vaillancourt, David E ^a   Larsson, Lars ^b   Newell, Karl M ^b  

^a UNIVERSITY OF ILLINOIS AT CHICAGO   (United States)

^b PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

Aging; EMG; Force; Motor unit; Oscillators; Variability

Indexed keywords

ADULT; AGED; AGING; ARTICLE; CONTROLLED STUDY; CORRELATION ANALYSIS; ELECTROMYOGRAM; FEMALE; FINGER; FOURIER ANALYSIS; HAND MUSCLE; HUMAN; HUMAN EXPERIMENT; MALE; MOTOR UNIT; MUSCLE FORCE; MUSCLE ISOMETRIC CONTRACTION; MUSCLE STRENGTH; NERVE CELL; NORMAL HUMAN; PRIORITY JOURNAL; SPIKE WAVE;

ACTION POTENTIALS; ADULT; AGED; AGED, 80 AND OVER; AGING; ANALYSIS OF VARIANCE; ELECTRIC STIMULATION; ELECTROMYOGRAPHY; EXERTION; FEMALE; FINGERS; HUMANS; MALE; MOTOR NEURONS; MUSCLE CONTRACTION; MUSCLE, SKELETAL;

EID: 0037213741     PISSN: 01974580     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0197-4580(02)00014-3     Document Type: Article

References (43)

1. Baker S.N., Olivier E., Lemon R.N. Coherent oscillations in monkey motor cortex and hand muscle EMG show task-dependent modulation. J. Physiol. (London). 501:1997;225-241.
2. Brown P. Cortical drives to human muscle: the Piper and related rhythms. Progr. Neurobiol. 60:2000;97-108.
3. Brown P. Muscle sounds in Parkinson's disease. Lancet. 349:1997;533-535.
4. Brown P., Corcos D.M., Rothwell J.C. Does Parkinsonian action tremor contribute to muscle weakness in Parkinson's disease? Brain. 120:1997;401-408.
5. Brown P., Salenius S., Rothwell J.C., Hari R. Cortical correlate of the Piper rhythm in humans. J. Neurophysiol. 80:1998;2911-2917.
6. Brown R.G., Dowsey P.L., Brown P., Jahanshahi M., Pollak P., Benabid A.L.et al. Impact of deep brain stimulation on upper limb akinesia in Parkinson's disease. Ann. Neurol. 45:1999;473-488.
7. Burnett R.A., Laidlaw D.H., Enoka R.M. Coactivation of the antagonist muscle does not covary with steadiness in old adults. J. Appl. Physiol. 89:1998;61-71.
8. Connelly D.M., Rice C.L., Roos M.R., Vandervoort A.A. Motor unit firing rates and contractile properties in tibialis anterior of young and old men. J. Appl. Physiol. 87:1999;843-852.
9. DeLuca C.J., Mambrito B. Voluntary control of motor units in human antagonist muscles: coactivation and reciprocal activation. J. Neurophysiol. 58:1987;525-542.
10. Elble R.J., Randall J.E. Motor unit activity responsible for 8-12 Hz component of human physiological finger tremor. J. Neurophysiol. 39:1976;370-383.
11. Erim Z., Beg M.F., Burke D.T., De Luca C.J. Effects of aging on motor-unit control properties. J. Neurophysiol. 82:1999;2081-2091.
12. Farmer S.F., Bremner F.D., Halliday D.M., Rosenberg J.R., Stephens J.A. The common synaptic inputs to motoneurons studied during voluntary isometric contraction in man. J. Physiol. (London). 470:1993;127-155.
13. Galganski M.E., Fuglevand A.J., Enoka R.M. Reduced control of motor output in a human hand muscle of elderly subjects during submaximal contractions. J. Neurophysiol. 69:1993;2108-2115.
14. Halliday A.M., Conway B.A., Farmer S.F., Rosenberg J.R. Load-independent contributions from motor-unit synchronization to human physiological tremor. J. Neurophysiol. 82:1999;664-675.
15. Hill A.V. The tetanic nature of the voluntary conraction in man. J. Physiol. (London). 55:1921;14-16.
16. Jenkins GM, Watts DG. Spectral Analysis and its Applications. London: Holden-Day, 1968.
17. Kamen G., Roy A. Motor unit synchronization in young and elderly adults. Eur. J. Physiol. Occup. Physiol. 81:2000;403-410.
18. Kamen G., Sison S.V., Duke Du C.C., Patton C. Motor unit discharge behavior in older adults during maximal-effort contractions. J. Appl. Physiol. 79:1995;1908-1913.
19. Kilner J.M., Baker S.N., Salenius S., Jousmaki V., Hari R., Lemon R.N. Task-dependent modulation of 15-30 Hz coherence between rectified EMGs from human hand and forearm muscles. J. Physiol. (London). 516.2:1999;559-570.
20. Laidlaw D.H., Bilodeau M., Enoka R.M. Steadiness is reduced and motor unit discharge is more variable in old adults. Muscle and Nerve. 23:2000;600-612.
21. Larsson L., Ansved T. Effects of aging on the motor unit. Progr. Neurobiol. 45:1995;397-458.
22. Lipsitz L.A., Goldberger A.L. Loss of 'complexity' and aging: potential applications of fractals and chaos theory to senescence. J. Am. Med. Assoc. 267:1992;1806-1809.
23. McAuley J.H., Marsden C.D. Physiological and pathological tremors and rhythmic central motor control. Brain. 123:2000;1545-1567.
24. McAuley J.H., Corcos D.M., Rothwell J.C., Quinn N.P., Marsden C.D. Levodopa reversible loss of the Piper frequency oscillation component in Parkinson's disease. J. Neurol. Neurosurg. Psychiatr. 70:2001;471-476.
25. McAuley J.H., Rothwell J.C., Marsden C.D. Frequency peaks of tremor, muscle vibration and electromyography activity at 10, 20, and 40 Hz during human finger muscle contraction may reflect rhythmicities of central neural firing. Exp. Brain Res. 114:1997;525-541.
26. Milner-Brown H.S., Stein R.B., Yemm R. Changes in firing rate of human motor units during linearly changing voluntary contractions. J. Physiol. (London). 230:1973;371-390.
27. Mima T., Matsuoka T., Hallett M. Information flow from the sensorimotor cortex to muscle in humans. Clin. Neurophysiol. 112:2001;122-126.
28. Newell K.M., Carlton L.G. On the relationship between peak force and variability in isometric tasks. J. Motor Behav. 17:1985;230-241.
29. Nordstrom M.A., Fuglevand A.J., Enoka R.M. Estimating the strength of common input to human motoneurons from the cross-correlogram. J. Physiol. (London). 453:1992;547-574.
30. Pincus S.M., Goldberger A.L. Physiological time-series analysis: what does regularity quantify? Am. J. Physiol. (Heart Circulat. Physiol.). 266:1994;H1643-H1656.
31. Pincus S.M. Approximate entropy as a measure of system complexity. Proc. Natl. Acad. Sci. USA. 88:1991;2297-2301.
32. Piper H. Über den willkürlichen Muskeltetanus. Pflügers Gesamte Physiol. Menschen. Tiere. 119:1907;301-338.
33. Roos M.R., Rice C.L., Vandervoort A.A. Age-related changes in motor unit function. Muscle and Nerve. 20:1997;679-690.
34. Semmler J.G., Steege J.W., Kornatz K.W., Enoka R.M. Motor-unit synchronization is not responsible for larger motor-unit forces in old adults. J. Neurophysiol. 84:2000;358-366.
35. Slifkin A.B., Vaillancourt D.E., Newell K.M. Intermittency in the control of continuous force production. J. Neurophysiol. 84:2000;1708-1718.
36. Vaillancourt D.E., Newell K.M. Amplitude modulation of the 8-12 Hz, 20-25 Hz, and 40 Hz oscillations in finger tremor. Clin. Neurophysiol. 111:2000;1792-1801.
37. Vaillancourt D.E., Newell K.M. The dynamics of resting and postural tremor in Parkinson's disease. Clin. Neurophysiol. 111:2000;2046-2056.
38. Vaillancourt D.E., Newell K.M. Changing complexity in human behavior and physiology through aging and disease. Neurobiol. Aging. 23:2001;1-11.
39. Vaillancourt DE, Larsson L, Newell KM. Time-dependent Structure in the Discharge Rate of Human Motor Units. Manuscript in preparation.
40. Vaillancourt D.E., Slifkin A.B., Newell K.M. Intermittency in the visual control of force in Parkinson's disease. Exp. Brain Res. 138:2001;118-127.
41. Vaillancourt D.E., Slifkin A.B., Newell K.M. Time regularity of force tremor in Parkinson's disease. Clin. Neurophysiol. 112:2001;1594-1603.
42. Vallbo A.B., Wessburg J. Organization of motor output in slow finger movements in man. J. Physiol. (London). 469:1993;673-691.
43. Wessberg J., Vallbo A.B. Pulsatile motor output in human finger movements is not dependent on the stretch reflex. J. Physiol. (London). 493(3):1996;895-908.