The Experts below are selected from a list of 285 Experts worldwide ranked by ideXlab platform
Wai Leung Ambrose Lo - One of the best experts on this subject based on the ideXlab platform.
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quantifying paraspinal Muscle Tone and stiffness in young adults with chronic low back pain a reliability study
Scientific Reports, 2018Co-Authors: Xiaoqian Hu, Le Li, Yan Leng, Qiuhua Yu, Wai Leung Ambrose LoAbstract:The reliability of a handheld myotonometer when used in a clinical setting to assess paraspinal Muscle mechanical properties is unclear. This study aimed to investigate the between-session intra-rater reliability of a handheld myotonometer in young adults with low back pain (LBP) in a clinical environment. One assessor recorded lumbar paraspinal Muscle Tone and stiffness in an outpatient department on two occasions. The intraclass correlation coefficient (ICC), standard error of measurement (SEM), smallest real difference (SRD) and Bland-Altman analysis were conducted to assess reliability. The results indicated acceptable between-days intra-rater reliability (ICC > 0.75) for all measurements. The SEM of the Muscle Tone and stiffness measurements ranged between 0.20–0.66 Hz and 7.91–16.51 N/m, respectively. The SRD was 0.44–1.83 Hz for Muscle Tone and 21.93–52.87 N/m for Muscle stiffness. SEM and SRD at L1-L2 were higher than those at other levels. The magnitude of agreement appeared to decrease as Muscle Tone and stiffness increased. The myotonometer demonstrated acceptable reliability when used in a clinical setting in young adults with chronic LBP. Measurements of the upper lumbar levels were not as reliable as those of the lower lumbar levels. The crural attachment of the diaphragm at L1 and L2 may affect paraspinal Muscle Tone and stiffness during respiratory cycles.
Leanne M. Johnston - One of the best experts on this subject based on the ideXlab platform.
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Muscle Tone assessments for children aged 0 to 12 years a systematic review
Developmental Medicine & Child Neurology, 2018Co-Authors: Kylie Tucker, Leanne M. JohnstonAbstract:AIM: The aim of this study was to identify and examine the psychometric properties of Muscle Tone assessments for children aged 0 to 12 years. METHOD: Four electronic databases were searched to identify studies that included assessments of resting and/or active Muscle Tone. Methodological quality and overall psychometric evidence of studies were rated using the COnsensus-based Standards for the selection of health Measurement INstruments checklist. RESULTS: Twenty-one assessments were identified from 97 included studies. All assessments were broad developmental assessments that included Muscle Tone items or subscales. Most assessments (16/21) were designed for young children (<2y). Four assessments measured resting and active Tone and demonstrated at least moderate validity or reliability: the Amiel-Tison Neurological Assessment (ATNA) at term, Neonatal Intensive Care Unit Network Neurobehavioral Scale (NNNS), Premie-Neuro for newborn infants, and the Hammersmith Infant Neurological Examination (HINE) for infants aged 2 months to 2 years. For children over 2 years, the Neurological Sensory Motor Developmental Assessment (NSMDA) assesses resting and active Tone but has limited validity. INTERPRETATION: The ATNA at term, NNNS, Premie-Neuro, HINE, and NSMDA can assess resting and active Tone in infants and/or children. Further psychometric research is required to extend reliability, validity, and responsiveness data, particularly for older children. WHAT THIS PAPER ADDS: This is the first review of Muscle Tone assessments for children aged 0 to 12 years. Twenty-one assessments contain Muscle Tone items and 16 are for children under 2 years. Four assessments are reliable or valid to measure both resting and active Tone.
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Muscle Tone assessments for children aged 0 to 12 years: a systematic review.
Developmental Medicine & Child Neurology, 2018Co-Authors: Kylie Tucker, Leanne M. JohnstonAbstract:AIM: The aim of this study was to identify and examine the psychometric properties of Muscle Tone assessments for children aged 0 to 12 years. METHOD: Four electronic databases were searched to identify studies that included assessments of resting and/or active Muscle Tone. Methodological quality and overall psychometric evidence of studies were rated using the COnsensus-based Standards for the selection of health Measurement INstruments checklist. RESULTS: Twenty-one assessments were identified from 97 included studies. All assessments were broad developmental assessments that included Muscle Tone items or subscales. Most assessments (16/21) were designed for young children (
William B Farquhar - One of the best experts on this subject based on the ideXlab platform.
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venous smooth Muscle Tone and responsiveness in older adults
Journal of Applied Physiology, 2006Co-Authors: Colin N Young, Michael E Stillabower, Angela Disabatino, William B FarquharAbstract:Venous compliance is lower in older adults compared with younger adults. It is possible that alterations in venous smooth Muscle Tone and responsiveness may contribute to the age-related difference...
Xiaoqian Hu - One of the best experts on this subject based on the ideXlab platform.
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quantifying paraspinal Muscle Tone and stiffness in young adults with chronic low back pain a reliability study
Scientific Reports, 2018Co-Authors: Xiaoqian Hu, Le Li, Yan Leng, Qiuhua Yu, Wai Leung Ambrose LoAbstract:The reliability of a handheld myotonometer when used in a clinical setting to assess paraspinal Muscle mechanical properties is unclear. This study aimed to investigate the between-session intra-rater reliability of a handheld myotonometer in young adults with low back pain (LBP) in a clinical environment. One assessor recorded lumbar paraspinal Muscle Tone and stiffness in an outpatient department on two occasions. The intraclass correlation coefficient (ICC), standard error of measurement (SEM), smallest real difference (SRD) and Bland-Altman analysis were conducted to assess reliability. The results indicated acceptable between-days intra-rater reliability (ICC > 0.75) for all measurements. The SEM of the Muscle Tone and stiffness measurements ranged between 0.20–0.66 Hz and 7.91–16.51 N/m, respectively. The SRD was 0.44–1.83 Hz for Muscle Tone and 21.93–52.87 N/m for Muscle stiffness. SEM and SRD at L1-L2 were higher than those at other levels. The magnitude of agreement appeared to decrease as Muscle Tone and stiffness increased. The myotonometer demonstrated acceptable reliability when used in a clinical setting in young adults with chronic LBP. Measurements of the upper lumbar levels were not as reliable as those of the lower lumbar levels. The crural attachment of the diaphragm at L1 and L2 may affect paraspinal Muscle Tone and stiffness during respiratory cycles.
Zaghloul Ahmed - One of the best experts on this subject based on the ideXlab platform.
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trans spinal direct current stimulation alters Muscle Tone in mice with and without spinal cord injury with spasticity
The Journal of Neuroscience, 2014Co-Authors: Zaghloul AhmedAbstract:Muscle Tone abnormalities are associated with many CNS pathologies and severely limit recovery of motor control. Muscle Tone depends on the level of excitability of spinal moToneurons and interneurons. The present study investigated the following hypotheses: (1) direct current flowing from spinal cord to sciatic nerve [spinal-to-sciatic direct current stimulation (DCS)] would inhibit spinal motor neurons and interneurons, hence reducing Muscle Tone; and (2) direct current flowing in the opposite direction (sciatic-to-spinal DCS) would excite spinal motor neurons and interneurons, hence increasing Muscle Tone. Current intensity was biased to be ∼170 times greater at the spinal column than at the sciatic nerve. The results showed marked effects of DCS on Muscle Tone. In controls and mice with spinal cord injuries with spasticity, spinal-to-sciatic DCS reduced transit and steady stretch-induced nerve and Muscle responses. Sciatic-to-spinal DCS caused opposite effects. These findings provide the first direct evidence that trans-spinal DCS can alter Muscle Tone and suggest that this approach could be used to reduce both hypotonia and hypertonia.
