2009
DOI: 10.1016/j.sleep.2008.04.007
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Subclinical abnormal EMG activation of the gastrocnemii during gait analysis in restless legs syndrome: A preliminary report in 13 patients

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Cited by 17 publications
(22 citation statements)
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“…This movement resembles closely, even in its electrophysiological recruitment pattern, the so‐called Babinski sign or plantar extension reflex, which is an abnormal extension response elicited by a non‐painful stroking of the sole of the foot. The same response is physiological in certain conditions, such as in young children up to 24 months of age, during non‐rapid eye movement (NREM) sleep, under general anaesthesia, and when a person steps on a painful object and the leg that is stepping on the object pulls away (painful or withdrawal reflex) (Brodal, ; Paci et al., ). These superficial reflexes represent species‐specific innate and stereotyped motor patterns sustained by an oligosynaptic circuit at the spinal level, modulated by supraspinal networks such as the phylogenetically more recent neocortical structures (Tassinari et al., ).…”
Section: Discussionmentioning
confidence: 99%
“…This movement resembles closely, even in its electrophysiological recruitment pattern, the so‐called Babinski sign or plantar extension reflex, which is an abnormal extension response elicited by a non‐painful stroking of the sole of the foot. The same response is physiological in certain conditions, such as in young children up to 24 months of age, during non‐rapid eye movement (NREM) sleep, under general anaesthesia, and when a person steps on a painful object and the leg that is stepping on the object pulls away (painful or withdrawal reflex) (Brodal, ; Paci et al., ). These superficial reflexes represent species‐specific innate and stereotyped motor patterns sustained by an oligosynaptic circuit at the spinal level, modulated by supraspinal networks such as the phylogenetically more recent neocortical structures (Tassinari et al., ).…”
Section: Discussionmentioning
confidence: 99%
“…38 RLS patients also have abnormal activation of the gastrocnemius muscles, found in the upper calf, during walking when compared to non-RLS patients thus suggesting that RLS patients may have impaired supraspinal dopaminergic control over the muscle. 39 This may be related to the observation that RLS patients have some impairment of the inhibitory descending dopaminergic pathway stemming from the A11 cell group in the periventricular posterior hypothalamus. 40 Without the proper inhibitory actions of the dopaminergic pathway, consistent activation of the leg muscles may lead to high threshold muscle afferents in the legs, causing uncomfortable sensations and the need to move to relieve those sensations.…”
Section: Possible Mechanisms For Depth and Distribution Of Rls Symptomsmentioning
confidence: 99%
“…This muscle plays an important role in locomotion (walking is the most effective alleviating factor of RLS sensations). In addition, a recent electrophysiological study of locomotion showed that the gastrocnemius muscles of RLS patients exhibit abnormal activation during walking (10 of 13 patients) compared to healthy control subjects [39]. It would be interesting to investigate in the future, using body diagrams, the topography of the sensations in patients with RLS associated with peripheral neuropathies or radiculopathies [6] or in subjects with other unpleasant conditions affecting their lower limbs (such as muscle cramps, positional discomfort or arthropathies, which are differential diagnoses of RLS) [40], and to compare them to patients with primary RLS.…”
Section: Quantification Of the Topography Of Rls Sensationsmentioning
confidence: 99%