Persons with Parkinson’s disease exhibit decreased neuromuscular complexity during gait

Highlights ► Persons with Parkinson’s disease required fewer motor modules than did healthy older adults to reconstruct 95% of the variability in the physiological processed EMG signals during treadmill walking. ► Compared to healthy older adults, activation profiles were altered in persons with Par...

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Veröffentlicht in:	Clinical neurophysiology 2013-07, Vol.124 (7), p.1390-1397
Hauptverfasser:	Rodriguez, Kathryn L, Roemmich, Ryan T, Cam, Bruce, Fregly, Benjamin J, Hass, Chris J
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Biomechanical Phenomena Case-Control Studies Chi-Square Distribution Electromyography Evoked Potentials, Motor - physiology Female Gait Gait - physiology Humans Male Middle Aged Motor control Motor modules Muscle, Skeletal - physiopathology Neurology Neuromuscular Diseases - etiology Non-negative matrix factorization Parkinson Disease - complications Parkinson Disease - pathology Parkinson’s disease Time Factors
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Zusammenfassung:	Highlights ► Persons with Parkinson’s disease required fewer motor modules than did healthy older adults to reconstruct 95% of the variability in the physiological processed EMG signals during treadmill walking. ► Compared to healthy older adults, activation profiles were altered in persons with Parkinson’s disease while muscle weighting vectors were unchanged. ► These patterns of simplified neuromuscular control complexity were associated with decreased gait performance in persons with Parkinson’s disease.
ISSN:	1388-2457 1872-8952
DOI:	10.1016/j.clinph.2013.02.006