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Relationship between muscle output and functional MRI-measured brain activation
Abstract. The relationship between functional MRI (fMRI)-measured brain signal and muscle force and or electromyogram (EMG) is critical in interpreting fMRI data and understanding the controlExpand
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From mental power to muscle power—gaining strength by using the mind
The purposes of this project were to determine mental training-induced strength gains (without performing physical exercises) in the little finger abductor as well as in the elbow flexor muscles,Expand
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A dynamical model of muscle activation, fatigue, and recovery.
A dynamical model is presented as a framework for muscle activation, fatigue, and recovery. By describing the effects of muscle fatigue and recovery in terms of two phenomenological parameters (F,Expand
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Effects of Aging on Hand Function
OBJECTIVES: The purpose of this study was to quantify age‐induced changes in handgrip and finger‐pinch strength, ability to maintain a steady submaximal finger pinch force and pinch posture, speed inExpand
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Training-related enhancement in the control of motor output in elderly humans.
The increase in motor unit force that occurs with aging has been hypothesized to cause a decline in the ability to maintain a constant submaximal force. To test this hypothesis, young and elderlyExpand
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Human brain activation during sustained and intermittent submaximal fatigue muscle contractions: an FMRI study.
During prolonged submaximal muscle contractions, electromyographic (EMG) signals typically increase as a result of increasing motor unit activities to compensate for fatigue-induced force loss in theExpand
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Greater movement-related cortical potential during human eccentric versus concentric muscle contractions.
Despite abundant evidence that different nervous system control strategies may exist for human concentric and eccentric muscle contractions, no data are available to indicate that the brain signalExpand
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Relationship between motor activity-related cortical potential and voluntary muscle activation
Abstract. The purpose of this study was to investigate the relationship between EEG-derived motor activity-related cortical potential (MRCP) and voluntary muscle activation. Eight healthy volunteersExpand
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Functional corticomuscular connection during reaching is weakened following stroke
OBJECTIVE To investigate the functional connection between motor cortex and muscles, we measured electroencephalogram-electromyogram (EEG-EMG) coherence of stroke patients and controls. METHODSExpand
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Older adults exhibit a reduced ability to fully activate their biceps brachii muscle.
BACKGROUND Voluntary muscle strength declines significantly in older adults. One contributing factor to the strength loss is muscle atrophy developed in old age. Whether the ability to maximallyExpand
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