منابع مشابه
The Arm Reflexes.
FOR many years the presence of decreased or absent tendon reflexes of the arm in healthy persons has been recognized, and the late Dr. Kinnier Wilson suggested that a study of these reflexes might assist in showing the frequency with which the variations occurred. For this investigation, the triceps, biceps, and supinator reflexes were examined bilaterally once in 466 persons and repeatedly, up...
متن کاملEffect of rhythmic arm movement on reflexes in the legs: modulation of soleus H-reflexes and somatosensory conditioning.
During locomotor tasks such as walking, running, and swimming, the arms move rhythmically with the legs. It has been suggested that connections between the cervical and lumbosacral spinal cord may mediate some of this interlimb coordination. However, it is unclear how these interlimb pathways modulate reflex excitability during movement. We hypothesized that rhythmic arm movement would alter th...
متن کاملWithdrawal reflexes in the upper limb adapt to arm posture and stimulus location.
INTRODUCTION Withdrawal reflexes in the leg adapt in a context-appropriate manner to remove the limb from noxious stimuli, but the extent to which withdrawal reflexes adapt in the arm remains unknown. METHODS We examined the adaptability of withdrawal reflexes in response to nociceptive stimuli applied in different arm postures and to different digits. Reflexes were elicited at rest, and kine...
متن کاملLong-Latency Reflexes of the Human Arm Reflect an Internal Model of Limb Dynamics
A key feature of successful motor control is the ability to counter unexpected perturbations. This process is complicated in multijoint systems, like the human arm, by the fact that loads applied at one joint will create motion at other joints [1-3]. Here, we test whether our most rapid corrections, i.e., reflexes, address this complexity through an internal model of the limb's mechanical prope...
متن کاملPrior experience does not alter modulation of cutaneous reflexes during manual wheeling and symmetrical arm cycling.
Previous research has reported that training and experience influence H-reflex amplitude during rhythmic activity; however, little research has yet examined the influence of training on cutaneous reflexes. Manual wheelchair users (MWUs) depend on their arms for locomotion. We postulated that the daily dependence and high amount of use of the arms for mobility in MWUs would show differences in c...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1939
ISSN: 0022-3050
DOI: 10.1136/jnnp.2.1.7