Enhancing Postural Stability and Adaptability in Multiple Sclerosis

Emmerik, Richard E.A. van; Jones, Stephanie; Remelius, Jebb G.; Averill, Julianna L.

doi:10.1007/978-1-4939-1338-1_15

Cited by 10 publications

(13 citation statements)

References 103 publications

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“…Studies of action stability during whole-body movements have used a variety of methods applied to different patient populations and functional tasks including vertical posture (Hausdorff et al 1985; Cavanaugh et al 2005; Riva et al 2013; van Emmerik et al 2014). Studies of patients with postural disorders explored analysis of postural sway during quiet standing (Visser et al 2008), postural preparation to self-initiated action (King et al 2010; Rogers et al 2011), and responses to unexpected postural perturbations (Boonstra et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Motor equivalence and structure of variance: multi-muscle postural synergies in Parkinson’s disease

et al. 2017

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We explored posture-stabilizing multi-muscle synergies with two methods of analysis of multielement, abundant systems: (1) Analysis of inter-cycle variance; and (2) Analysis of motor equivalence, both quantified within the framework of the uncontrolled manifold (UCM) hypothesis. Data collected in two earlier studies of patients with Parkinson's disease (PD) were re-analyzed. One study compared synergies in the space of muscle modes (muscle groups with parallel scaling of activation) during tasks performed by early-stage PD patients and controls. The other study explored the effects of dopaminergic medication on multi-muscle-mode synergies. Inter-cycle variance and absolute magnitude of the center of pressure displacement across consecutive cycles were quantified during voluntary whole-body sway within the UCM and orthogonal to the UCM space. The patients showed smaller indices of variance within the UCM and motor equivalence compared to controls. The indices were also smaller in the off-drug compared to on-drug condition. There were strong across-subject correlations between the intercycle variance within/orthogonal to the UCM and motor equivalent/non-motor equivalent displacements. This study has shown that, at least for cyclical tasks, analysis of variance and analysis of motor equivalence lead to metrics of stability that correlate with each other and show similar effects of disease and medication. These results show, for the first time, intimate links between indices of variance and motor equivalence. They suggest that analysis of motor equivalence, which requires only a handful of trials, could be used broadly in the field of motor disorders to analyze problems with action stability.

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Section: Discussionmentioning

confidence: 99%

Motor equivalence and structure of variance: multi-muscle postural synergies in Parkinson’s disease

et al. 2017

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“…This was followed by using eligible criteria to exclude 34 articles due to the following reasons: irrelevant topic (n = 12), abstract (n = 4), review articles (n = 7), and no TC intervention (n = 11). Ten studies were finally considered eligible for full-text critical appraisal, including seven experimental studies (two randomized controlled design [ 31 , 32 ] and five quasi-experimental design [ 19 – 21 , 33 , 34 ]) and three observational studies (-posttest design [ 35 – 37 ]). The inter-rater reliability for the selection of the eligible studies was 83.3%.…”

Section: Resultsmentioning

confidence: 99%

“…More specifically, the low overall study quality within the experimental studies is mainly attributed to the following reasons such as selection bias (non-randomized, unconcealed assignment), performance bias (absence of blinding of therapist), measurement bias (absence of blinding of participants and assessor), and attrition bias (lacking intention-to-treat analysis). With regard to the study quality assessment for three observational studies with pretest-posttest design, although one study with high quality [ 36 ] and two other studies with acceptable quality [ 35 , 37 ] were presented, all three studies lacked large sample size [ 35 – 37 ]; two studies lacked blinding of outcome assessor [ 35 , 37 ]; one study did not meet the requirement of “group-level interventions and individual-level outcome efforts” [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…QOL assessment can better evaluate disease progression and symptomatic management when compared to assessment of fatigue, depression, or physical disability, which only reflects a small portion of life experience in MS patients [ 38 – 40 ]. Five studies examining the effect of TC on QOL in MS patients were included in this review [ 20 , 21 , 33 , 35 , 37 ].…”

Section: Summary Of Evidencementioning

confidence: 99%

“…Emmerik, Jones, Busa, Remeius, and Averill [ 37 ] carried out a pretest-posttest trial examining the effect of TC on Multiple Sclerosis Impact Scale-29 (MSIS-29) measuring QOL, with a small sample size of 12 MS patients (age 48.5 ±10.8 years, height 1.66 ±0.08 m, mass 68.6 ±19.8 kg). The MS patients experienced nine 1-hour TC sessions within three weeks.…”

Section: Summary Of Evidencementioning

confidence: 99%

See 2 more Smart Citations

Tai chi for health benefits in patients with multiple sclerosis: A systematic review

Zou

Wang²,

Xiao

et al. 2017

PLoS ONE

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The aim of this systematic review was to evaluate the existing evidence on the effectiveness and safety of Tai chi, which is critical to provide guidelines for clinicians to improve symptomatic management in patients with multiple sclerosis (MS). After performing electronic and manual searches of many sources, ten relevant peer-reviewed studies that met the inclusion criteria were retrieved. The existing evidence supports the effectiveness of Tai chi on improving quality of life (QOL) and functional balance in MS patients. A small number of these studies also reported the positive effect of Tai chi on flexibility, leg strength, gait, and pain. The effect of Tai chi on fatigue is inconsistent across studies. Although the findings demonstrate beneficial effects on improving outcome measures, especially for functional balance and QOL improvements, a conclusive claim should be made carefully for reasons such as methodological flaws, small sample size, lack of specific-disease instruments, unclear description of Tai chi protocol, unreported safety of Tai chi, and insufficient follow-up as documented by the existing literature. Future research should recruit a larger number of participants and utilize the experimental design with a long-term follow-up to ascertain the benefits of Tai chi for MS patients.

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Bridging the callosal gap in gait: corpus callosum white matter integrity’s role in lower limb coordination

Richmond

Peterson

Fling

2022

Brain Imaging and Behavior

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Enhancing Postural Stability and Adaptability in Multiple Sclerosis

Cited by 10 publications

References 103 publications

Motor equivalence and structure of variance: multi-muscle postural synergies in Parkinson’s disease

Motor equivalence and structure of variance: multi-muscle postural synergies in Parkinson’s disease

Tai chi for health benefits in patients with multiple sclerosis: A systematic review

Bridging the callosal gap in gait: corpus callosum white matter integrity’s role in lower limb coordination

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