Bilateral effect of acupuncture on cerebrum and cerebellum in ischaemic stroke patients with hemiparesis: a randomised clinical and neuroimaging trial.

BACKGROUND: Acupuncture involving the limb region may be effective for stroke rehabilitation clinically, but the visualised and explanatory evidence is limited. Our objectives were to assess the specific effects of acupuncture for ischaemic stroke (IS) patients with hemiparesis and investigate its therapy-driven modification in functional connectivity. METHODS: IS patients were randomly assigned (2:1) to receive 10 sessions of hand-foot 12 needles acupuncture (HA, n=30) or non-acupoint (NA) acupuncture (n=16), enrolling gender-matched and age-matched healthy controls (HCs, n=34). The clinical outcomes were the improved Fugl-Meyer Assessment scores including upper and lower extremity (ΔFM, ΔFM-UE, ΔFM-LE). The neuroimaging outcome was voxel-mirrored homotopic connectivity (VMHC). Static and dynamic functional connectivity (sFC, DFC) analyses were used to study the neuroplasticity reorganisation. RESULTS: 46 ISs (mean(SD) age, 59.37 (11.36) years) and 34 HCs (mean(SD) age, 52.88 (9.69) years) were included in the per-protocol analysis of clinical and neuroimaging. In clinical, ΔFM scores were 5.00 in HA group and 2.50 in NA group, with a dual correlation between ΔFM and ΔVMHC (angular: r=0.696, p=0.000; cerebellum: r=-0.716, p=0.000) fitting the linear regression model (R2=0.828). In neuroimaging, ISs demonstrated decreased VMHC in bilateral postcentral gyrus and cerebellum (Gaussian random field, GRF corrected, voxel p<0.001, cluster p<0.05), which fitted the logistic regression model (AUC=0.8413, accuracy=0.7500). Following acupuncture, VMHC in bilateral superior frontal gyrus orbital part was increased with cerebro-cerebellar changes, involving higher sFC between ipsilesional superior frontal gyrus orbital part and the contralesional orbitofrontal cortex as well as cerebellum (GRF corrected, voxel p<0.001, cluster p<0.05). The coefficient of variation of VMHC was decreased in bilateral posterior cingulate gyrus (PPC) locally (GRF corrected, voxel p<0.001, cluster p<0.05), with integration states transforming into segregation states overall (p<0.05). There was no acupuncture-related adverse event. CONCLUSIONS: The randomised clinical and neuroimaging trial demonstrated acupuncture could promote the motor recovery and modified cerebro-cerebellar VMHC via bilateral static and dynamic reorganisations for IS patients with hemiparesis.

Caso clínico: “Nadie lo hará por mí” / [Clinical case: “No one will do it for me”]

La adherencia terapéutica, es un hecho variante y complejo ya que son diversos los factores que influyen en él. En los países desarrollados la adherencia terapéutica de los pacientes que padecen enfermedades crónicas es del 50%, requiriendo acciones de prevención y promoción de la salud, que se ven intensificadas cuando la falta de adherencia terapéutica está unida al abuso de sustancias y la dependencia de alcohol. El señor D.R. es un paciente varón de 69 años con paresia crural izquierda, trastorno de la marcha, dependencia para las ABVD y AIVD, HTA, ateromatosis carotidea, mala adherencia terapéutica, abuso de alcohol, sobrepeso e hipercolesterolemia, que ingresa en el hospital en el servicio de Neurología tras sufrir un ictus isquémico. Durante este ingreso, se distingue el progreso en el nivel de implicación y compromiso del paciente con su propia salud. A través de la taxonomía NANDA-I, NOC y NIC, se llevó a cabo un plan de cuidados, aplicando un lenguaje estandarizado y con intervenciones basadas en la evidencia científica. (AU)

[Neuralgic amyotrophy: a common cause of unilateral and bilateral diaphragmatic pareses]. / Die neuralgische Amyotrophie: eine häufige Ursache uni- oder bilateraler Zwerchfellparesen.

There are several causes for unilateral or bilateral diaphragmatic paresis. The most common cause is an (intraoperative) injury to the phrenic nerve.However, in up to 20% of cases, no explanation can be found despite extensive workup. Neuralgic amyotrophy (NA, also known as Parsonage-Turner syndrome) is a common underdiagnosed multifocal autoimmune-inflammatory disease that predominantly affects proximal nerve segments of the upper extremities. Classic symptoms include acute onset of severe pain in the shoulder girdle with delayed onset of paresis of the shoulder and arm muscles. In at least 7% of cases, the phrenic nerve is also affected. Based on the annual incidence of NA of 1:1000, the entity as a cause of diaphragmatic dysfunction is probably not as uncommon as previously thought. However, clinical experience shows that this diagnosis is often not considered, and diaphragmatic paresis gets wrongly classified as idiopathic.This is particularly disastrous because in the early stage of NA, medical therapy with corticosteroids is mostly not considered and the possibility that surgical repair of the diaphragm may be performed prematurely, given that the condition may resolve spontaneously many months after symptom onset.The aim of the present article is to raise awareness of the entity of NA as a cause of diaphragmatic paresis and to establish a standardized approach to diagnosis and treatment.

[Experience of using rhythmic transcranial magnetic stimulation, extracorporeal shock wave therapy and botulinotherapy in individual motor recovery programs in patients with spastic paresis of the lower limb]. / Opyt ispol'zovaniya v individual'nykh programmakh dvigatel'nogo vosstanovleniya ritmicheskoi transkranial'noi magnitnoi stimulyatsii, ekstrakorporal'noi udarno-volnovoi terapii i botulinoterapii u patsientov so spasticheskim parezom nizhnei konechnosti.

Walking disorder is one of the most frequent consequences of stroke and traumatic brain injury, occurring in 80% of cases. Spastic paresis of the muscles of the lower extremity is the cause formed in 20-40% of patients within a few weeks after brain damage. In this case, a complex of symptoms occurs: motor deficiency (muscle paresis), increased muscle tone (spasticity), biomechanical changes in muscles, joints and surrounding tissues, contractures. Recovery of walking is a difficult task due to the peculiarities of its organization in the norm. At the same time, changes occurring in the muscles of the lower limb after a stroke, their modular reorganization, the formation of various pathological patterns, violation of the regulation of movements by the central nervous system, rapidly occurring changes in muscles, ligaments, complicate this process. Improving walking is one of the most important priorities of rehabilitation. Already at the second (stationary) stage of rehabilitation, patients have a lack of proper support on the lower limb, which inevitably leads to excessive load on the second limb, a change in the body scheme, incorrect foot placement, violation of the mechanics of walking (moving from heel to toe) due to plantar flexion / turn of the foot, etc. All this makes patients dependent on outside help, and walking unsafe, increases the risk of falls and complications (arthropathy, contracture, etc.). In this regard, it is important to timely diagnose the totality of changes in the lower limb and create optimal comprehensive rehabilitation programs using highly effective treatment methods aimed at reducing the severity of the motor defect, reducing spasticity and preventing complications. The article discusses the place of rhythmic transcranial magnetic stimulation, extracorporeal shock wave therapy and botulinum therapy during rehabilitation in patients with spastic paresis of the lower limb after a stroke. The results of the protocol of clinical approbation «Complex rehabilitation of patients with lower limb spasticity after focal brain damage at the second stage of medical rehabilitation¼ are presented.

Botulinum Toxin and Dynamic Splint Restore Grasping Function after Stroke: A Case Report.

Evidence on the effectiveness of upper extremity rehabilitation post-stroke is inconclusive. We evaluated a tailored therapeutic program with dynamic splint and botulinum toxin injections for the treatment of upper extremity muscle spasticity. A case of a 43-year-old woman with chronic spastic hemiparesis after ischemic stroke with significant mobility impairment in the left upper extremity was described. A 16-week program consisted of three 50-min sessions daily and focused on grasping and releasing with and without the splint. The patient was evaluated before botulinum toxin injection and after 6, 12 and 16 weeks according to the International Classification of Functioning, Disability and Health, and included the following scales: Fugl-Meyer Upper Extremity Assessment (FMA-UE), Modified Ashworth Scale, Numerical Rating Scale (NRS), MyotonPro, Stroke Impact Scale, Box and Blocks. Photographic documentation made before and after the experiment was compared. Motor functions improved by 19.7% on FMA-UE, spasticity was reduced by one degree and pain at rest and during activity decreased by one score on NRS. A reduction in the oscillation frequency of the relaxed muscle and the stiffness of the examined muscles was observed. The patient regained grasping function. Health-related quality of life was systematically improving with a 35% increase at week 16 compared to the baseline. The combination treatment for spasticity based on botulinum toxin and SaeboFlex® dynamic splint in a patient with chronic spastic hemiparesis reduces disability and improves quality of life. However, further research is needed to investigate the treatment results.

Anti-spastic effect of contralesional dorsal premotor cortex stimulation in stroke patients with moderate-to-severe spastic paresis: a randomized, controlled pilot trial.

OBJECTIVE: This study aimed at investigating the effect of a single-session repetitive transcranial magnetic stimulation (rTMS) of the contralesional dorsal premotor cortex on poststroke upper-limb spasticity. MATERIAL AND METHODS: The study consisted of the following three independent parallel arms: inhibitory rTMS (n = 12), excitatory rTMS (n = 12), and sham stimulation (n = 13). The primary and secondary outcome measures were the Modified Ashworth Scale (MAS) and F/M amplitude ratio, respectively. A clinically meaningful difference was defined as a reduction in at least one MAS score. RESULTS: There was a statistically significant change in MAS score within only the excitatory rTMS group over time [median (interquartile range) of - 1.0 (- 1.0 to - 0.5), p = 0.004]. However, groups were comparable in terms of median changes in MAS scores (p > 0.05). The proportions of patients achieving at least one MAS score reduction (9/12 in the excitatory rTMS group, 5/12 in the inhibitory rTMS group, and 5/13 in the control group) were also comparable (p = 0.135). For the F/M amplitude ratio, main time effect, main intervention effect, and time-intervention interaction effect were not statistically significant (p > 0.05). CONCLUSIONS: Modulation of the contralesional dorsal premotor cortex with a single-session of excitatory or inhibitory rTMS does not appear to have an immediate anti-spastic effect beyond sham/placebo. The implication of this small study remains unclear and further studies into excitatory rTMS for the treatment of moderate-to-severe spastic paresis in poststroke patients should be undertaken. CLINICAL TRIAL REGISTRATION NO: NCT04063995 (clinicaltrials.gov).

Epidural stimulation of the cervical spinal cord for post-stroke upper-limb paresis.

Cerebral strokes can disrupt descending commands from motor cortical areas to the spinal cord, which can result in permanent motor deficits of the arm and hand. However, below the lesion, the spinal circuits that control movement remain intact and could be targeted by neurotechnologies to restore movement. Here we report results from two participants in a first-in-human study using electrical stimulation of cervical spinal circuits to facilitate arm and hand motor control in chronic post-stroke hemiparesis ( NCT04512690 ). Participants were implanted for 29 d with two linear leads in the dorsolateral epidural space targeting spinal roots C3 to T1 to increase excitation of arm and hand motoneurons. We found that continuous stimulation through selected contacts improved strength (for example, grip force +40% SCS01; +108% SCS02), kinematics (for example, +30% to +40% speed) and functional movements, thereby enabling participants to perform movements that they could not perform without spinal cord stimulation. Both participants retained some of these improvements even without stimulation and no serious adverse events were reported. While we cannot conclusively evaluate safety and efficacy from two participants, our data provide promising, albeit preliminary, evidence that spinal cord stimulation could be an assistive as well as a restorative approach for upper-limb recovery after stroke.

Nonoperative Management of Humerus Fractures in Patients With Ispilateral Hemiparesis or Hemiplegia.

BACKGROUND: Patients with upper limb dysfunction from a brain injury often have different goals of treatment and expectations following a fracture of the upper extremity. This study retrospectively reviewed outcomes of nonoperative management of acute humerus fractures in patients with severe ipsilateral hemiparesis or hemiplegia. METHODS: Patients who had sustained an acute humerus fracture managed nonoperatively, greater than 1 year following an upper motor neuron (UMN) injury resulting in ipsilateral severe hemiparesis or hemiplegia at a single tertiary care center from 1988 to 2019, were reviewed. Fractures were classified using the AO-Müller/Orthopaedic Trauma Association and/or Neer classifications. Primary outcome measures included House classification level of function, pain, achievement of and time to radiographic union, and the need for subsequent surgical procedures. RESULTS: Ten distinct nonoperatively managed humerus fractures-3 proximal (11A23), 5 mid-shaft (12A2b = 1, 12A2c = 2, 12A3a = 1, 12A2b = 1), and 2 distal (13A2 = 1, 13 C1 = 1)-were identified in 8 patients (6 women and 2 men) with ipsilateral hemiparesis or hemiplegia. The median radiographic follow-up was 20 months (range: 78 days to 12 years). The median clinical follow-up was 33.5 months (range: 100 days to 12 years). All patients presented with severe pain that was absent at final follow-up. Radiographic union was achieved in all patients with a mean time to union of 90.9 ± 39.3 days (range: 35-185 days). No patients required operative management. CONCLUSIONS: Nonoperative management of humerus fractures in patients with an ipsilateral UMN injury might result in reliable pain relief and union without the need for further surgical intervention. Management of humerus fractures in this patient population should be individualized toward their goals of care.

Poststroke arm and hand paresis: should we target the cervical spinal cord?

Despite advances in understanding of corticospinal motor control and stroke pathophysiology, current rehabilitation therapies for poststroke upper limb paresis have limited efficacy at the level of impairment. To address this problem, we make the conceptual case for a new treatment approach. We first summarize current understanding of motor control deficits in the arm and hand after stroke and their shared physiological mechanisms with spinal cord injury (SCI). We then review studies of spinal cord stimulation (SCS) for recovery of locomotion after SCI, which provide convincing evidence for enhancement of residual corticospinal function. By extrapolation, we argue for using cervical SCS to restore upper limb motor control after stroke.

Parents' perceptions of functional electrical stimulation as an upper limb intervention for young children with hemiparesis: qualitative interviews with mothers.

BACKGROUND/OBJECTIVE: To explore parents' perceptions of an upper extremity (UE) intervention using functional electrical stimulation (FES) for young children with hemiparesis. METHODS: Parents of children aged 3-6 years with a history of perinatal stroke, impaired UE function, and participation in a 12-week FES intervention delivered at a hospital were included in this exploratory qualitative study. Nine mothers participated in a semi-structured interview < 1 week after their child completed the FES intervention (MyndMove®, MyndTec Inc.) targeting the hemiparetic UE. Open-ended questions queried parents' goals, perceived benefits, and challenges of the FES intervention. Interviews were audio recorded and transcribed verbatim. Qualitative conventional content analysis was used to analyze the transcripts. RESULTS: Five themes were identified. 1) Parents' expectations for the FES intervention. Mothers described setting functional, exploratory, and realistic goals, yet feeling initial apprehension towards FES. 2) Perceived improvement. Physical, functional, and psychological improvements were observed with FES; however, there was still room for improvement. 3) Factors influencing the FES intervention. Program structure, therapist factors, and child factors influenced perceived success. 4) Lack of access to intensive therapy. Mothers noted that FES is not provided in mainstream therapy; however, they wanted access to FES outside of the study. They also highlighted socioeconomic challenges to accessing FES. 5) Strategies to facilitate participation. The mothers provided suggestions for program structure and delivery, and session delivery. CONCLUSIONS: Mothers perceived the FES intervention to have physical, functional and psychological benefits for their children. Interest in continuing with FES highlights a need to improve access to this therapy for young children.

[Restoration of hand function in patients with hemiparesis using mirror therapy in combination with myofascial stretching and postisometric relaxation]. / Vosstanovlenie funktsii kisti u patsientov s gemiparezom s primeneniem metoda zerkal'noi terapii v sochetanii s miofastsial'nym rastyazheniem i postizometricheskoi relaksatsiei.

The increase in the number of cerebral strokes is accompanied by the accumulation of patients with hemiparesis. It is especially difficult to restore the function of the upper limb, in particular the hand, which significantly limits the social, domestic and labor adaptation of patients. This makes it relevant to search for new methods for restoring the functions of the hand. Today, mirror therapy is becoming increasingly popular, which, however, does not eliminate myogenic contractures in the joints of a paralyzed limb. PURPOSE OF THE STUDY: Rationale for the use of mirror therapy in combination with myofascial stretching and postisometric relaxation in patients with hemiparesis. MATERIAL AND METHODS: 277 patients with hemiparesis were examined, of which 68 patients were included in the main group; 209 - to the comparison group. All patients underwent a course of rehabilitation treatment for 10 days. Patients of the main group additionally received mirror therapy in combination with myofascial stretching and post-isometric relaxation: course - 10 individual sessions, session duration - 30 minutes. Upon admission and before discharge, patients were evaluated for neurological status, severity of spastic and pain syndromes; the strength of the muscles of the paralyzed upper limb according to the Lovett scale; tested self-service skills in accordance with the International Classification of Functioning, Disabilities and Health. RESULTS: In patients of both groups, the severity of spastic and pain syndromes decreased, muscle strength increased. In the main group, these changes were more pronounced; 35 patients of the main group mastered new types of grip, which statistically significantly improved their social adaptability. CONCLUSION: Mirror therapy in combination with soft manual therapy techniques is able to restore precise targeted movements in the joints of the hand and fingers, form different grip options, which expands the possibilities of self-care for patients.

Effectiveness of Repetitive Facilitative Exercise Combined with Electrical Stimulation Therapy to Improve Very Severe Paretic Upper Limbs in with Stroke Patients: A Randomized Controlled Trial.

Background: The difference in the effects of combined therapy with repetitive facilitative exercise (RFE) and neuromuscular electrical stimulation (NMES) on stroke upper limb paralysis was only reported by a pilot study; it has not been investigated in many patients. Objective: We investigated the effect of combined therapy with RFE and NMES on stroke patients with severe upper paresis. Methods: This study included 99 of the very severe paresis stroke patients with scores of zero or 1a in the Finger-Function test of the Stroke Impairment Assessment Set (SIAS). We randomly divided the patients into four groups, namely, NMES, RFE, RFE under NMES, and conventional training (CT) groups. A total of 20 min of group-specific training in addition to 40 min of conventional exercise per day, seven times a week for 4 weeks after admission, was performed. The upper extremity items of the Fugl-Meyer Assessment (FMA) were evaluated before and after the training period. Results: The total score gains of the FMA, FMA wrist item, and FMA finger item were significantly larger in the RFE under NMES group than those in the CT group (p < 0.05). Conclusion: The combination of voluntary movement and electrical stimulation may promote the activation of paralyzed muscles and improve distal function for very severe paralyzed upper limbs.

Utilização da fisioterapia na reabilitação de bezerro com poliartrite e paresia neuromuscular: relato de caso / Use of physiotherapy in the rehabilitation of calves with polyarthritis and neuromuscular paresis: case report / Uso de la fisioterapia en la rehabilitación de un ternero con poliartritis y parisia neuromuscular: reporte de caso

A reabilitação animal na medicina veterinária é um campo recente, porém crescente a cada dia. Neste sentido, a fisioterapia veterinária atua trazendo inúmeros benefícios, como melhoria dos movimentos, redução da dor, edema e outras. Interfere ainda no tempo de recuperação, redução de custos para o proprietário, podendo ser hoje utilizada como um tratamento na recuperação pós-cirúrgica. Desta forma, objetivou-se relatar o uso da fisioterapia em uma bezerra com poliartrite e paresia neuromuscular. O animal apresentou um aumento de volume nas articulações cárpicas e társicas após histórico de onfalite, permanecendo em decúbito esternal por vários dias. O proprietário resolveu aplicar ferro dextrano na região glútea do animal, o que causou uma lesão de nervo isquiático. Foram instituídos protocolos medicamentosos e fisioterápicos, que culminaram no estímulo da marcha, propriocepção, além de hipertrofia muscular. Porém, em virtude de complicações resultantes de onfalite, o animal veio a óbito.(AU)

Animal rehabilitation in veterinary medicine is a recent field, but growing every day. In this sense, veterinary physiotherapy works bringing numerous benefits, such as improved movements, reduced pain, edema and others. Reducing the recovery time, reducing costs for the owner, and today it can be used as a treatment in post-surgical recovery. In this sense, the objective was to report the use of physiotherapy in a heifer with polyarthritis and neuromuscular paresis. The animal showed an increase in volume in the carpal and tarsal joints after a history of omphalitis, remaining in sternal decubitus for several days. The owner decided to apply iron dextran to the animal's gluteal region, which caused an injury to the sciatic nerve. Medicinal and physical therapy protocols were instituted, which culminated in the stimulation of gait, proprioception, in addition to muscle hypertrophy. However, due to complications resulting from omphalitis, the animal died.(AU)

La rehabilitación animal en medicina veterinaria es un campo reciente, pero en crecimiento cada día. En este sentido, la fisioterapia veterinaria actúa aportando numerosos beneficios, como mejora de los movimientos, reducción del dolor, edemas y otros. Disminución del tiempo de recuperación, reducción de costos para el propietario, pudiendo ser utilizado hoy en día como tratamiento en la recuperación posquirúrgica. En ese sentido, el objetivo fue reportar el uso de fisioterapia en una vaquilla con poliartritis y paresia neuromuscular. El animal presentó un aumento de volumen en las articulaciones del carpo y del tarso tras un antecedente de onfalitis, permaneciendo en decúbito esternal durante varios días. El propietario decidió aplicar hierro dextrano en la región glútea del animal, lo que provocó una lesión en el nervio ciático. Se instauraron protocolos farmacológicos y de fisioterapia, que culminaron con estimulación de la marcha, propiocepción, además de hipertrofia muscular. Sin embargo, debido a complicaciones derivadas de la onfalitis, el animal falleció.(AU)

Successful management of segmental zoster paresis on the upper arm with temporally burst spinal cord stimulation.

Segmental zoster paresis (SZP) of the limbs is characterized by a focal, asymmetric neurogenic weakness that may occur in an extremity affected by herpes zoster (HZ). In this case report, we describe the case of a patient with SZP who presented with these problems and responded well to temporary spinal cord stimulation (SCS) and systematic rehabilitation. A 62-year-old female patient was referred for right upper limb pain, weakness, and insomnia due to pain. After completing the 14-day trial stimulation, the pain numerical rating scale of the patient in the right upper extremity decreased from 8/10 to 2/10. The Athens insomnia scale score decreased from 15/24 to 10/24. Furthermore, the grip strength of the right hands increased from 6.7 to 16.8 kg at discharge. We induced temporal SCS and rehabilitation of the right upper limb SZP and successfully reduced the pain. An in-depth understanding of the neurological complications secondary to HZ should be emphasized, with temporal SCS and rehabilitation expected to play a crucial role in the motor recovery of patients with SZP.

Differential effects of anodal and dual tDCS on sensorimotor functions in chronic hemiparetic stroke patients.

BACKGROUND AND PURPOSE: Previous tDCS studies in chronic stroke patients reported highly inconsistent effects on sensorimotor functions. Underlying reasons could be the selection of different kinematic parameters across studies and for different tDCS setups. We reasoned that tDCS may not simply induce global changes in a beneficial-adverse dichotomy, but rather that different sensorimotor kinematics are differentially affected. Furthermore, the often-postulated higher efficacy of bilateral-dual (bi-tDCS) over unilateral-anodal (ua-tDCS) could not yet be demonstrated consistently either. We investigated the effects of both setups on a wider range of kinematic parameters from standardized robotic tasks in patients with chronic stroke. METHODS: Twenty-four patients with arm hemiparesis received tDCS (20min, 1 mA) concurrent to kinematic assessments in a sham-controlled, cross-over and double-blind clinical trial. Performance was measured on four sensorimotor tasks (reaching, proprioception, cooperative and independent bimanual coordination) from which 30 parameters were extracted. On the group-level, the patterns of changes relative to sham were assessed using paired-samples t-tests and classified as (1) performance increases, (2) decreases and (3) non-significant differences. Correlations between parametric change scores were calculated for each task to assess effects on the individual-level. RESULTS: Both setups induced complex effect patterns with varying proportions of performance increases and decreases. On the group-level, more increases were induced in the reaching and coordination tasks while proprioception and bimanual cooperation were overall negatively affected. Bi-tDCS induced more performance increases and less decreases compared to ua-tDCS. Changes across parameters occurred more homogeneously under bi-tDCS than ua-tDCS, which induced a larger proportion of performance trade-offs. CONCLUSIONS: Our data demonstrate profound tDCS effects on sensorimotor functions post-stroke, lending support for more pronounced and favorable effects of bi-tDCS compared to ua-tDCS. However, no uniformly beneficial pattern was identified. Instead, the modulations varied depending on the task and electrode setup, with increases in certain parameters occurring at the expense of decreases in others.

A scoping review of the contralateral effects of unilateral peripheral stimulation on neuromuscular function.

It is known that resistance exercise using one limb can affect motor function of both the exercised limb and the unexercised contralateral limb, a phenomenon termed cross-education. It has been suggested that cross-education has clinical implications, e.g. in rehabilitation for orthopaedic conditions or post-stroke paresis. Much of the research on the contralateral effect of unilateral intervention on motor output is based on voluntary exercise. This scoping review aimed to map the characteristics of current literature on the cross-education caused by three most frequently utilised peripheral neuromuscular stimulation modalities in this context: electrical stimulation, mechanical vibration and percutaneous needling, that may direct future research and translate to clinical practice. A systematic search of relevant databases (Ebsco, ProQuest, PubMed, Scopus, Web of Science) through to the end of 2020 was conducted following the PRISMA Extension for Scoping Review. Empirical studies on human participants that applied a unilateral peripheral neuromuscular stimulation and assessed neuromuscular function of the stimulated and/or the unstimulated side were selected. By reading the full text, the demographic characteristics, context, design, methods and major findings of the studies were synthesised. The results found that 83 studies were eligible for the review, with the majority (53) utilised electrical stimulation whilst those applied vibration (18) or needling (12) were emerging. Although the contralateral effects appeared to be robust, only 31 studies claimed to be in the context of cross-education, and 25 investigated on clinical patients. The underlying mechanism for the contralateral effects induced by unilateral peripheral stimulation remains unclear. The findings suggest a need to enhance the awareness of cross-education caused by peripheral stimulation, to help improve the translation of theoretical concepts to clinical practice, and aid in developing well-designed clinical trials to determine the efficacy of cross-education therapies.

Acceptability of constraint induced movement therapy: influence of perceived difficulty and expected treatment outcome.

BACKGROUND: Constraint-Induced Movement (CI) Therapy has evidence of efficaciously rehabilitating upper-extremity hemiparesis after stroke. Yet, it is not widely used in the United States. One barrier appears to be the perception of its difficulty among stroke care consumers, as reported by two published studies in which the participants had little or no apparent direct exposure to CI Therapy. OBJECTIVES: Assess the perception of difficulty of CI Therapy by individuals with chronic stroke who have actually undergone CI Therapy. METHODS: A secondary analysis was conducted of data from two randomized controlled trials of CI Therapy. Participants had chronic, mild-to-moderate upper-extremity hemiparesis after stroke. The Motor Activity Log and Wolf Motor Function Test were used to measure motor function of the more-affected arm. A Patient Opinion Survey assessed participants' perception of difficulty and satisfaction with treatment. RESULTS: The participants (N = 40) showed large improvements in motor function of their more-affected arm after treatment, p's <001. CI Therapy was perceived to be of only moderate difficulty by participants before treatment (mean = 4.4 out of 7). Perception of its difficulty decreased afterward (mean = 3.7, p = .002). Moreover, participants were highly satisfied with their outcomes (mean = 6.3 out of 7). Satisfaction was positively related to the improvements in more-affected arm use in everyday life, ΔR2 = .3, p < .001. CONCLUSIONS: Chronic stroke survivors who have actually had CI Therapy perceive it to be of only moderate difficulty and are highly satisfied. Negative views about its acceptability warrant reconsideration.