Vojta Therapy in Patients with Acute Stroke – A New Approach in Stroke Rehabilitation

Special Article – Stroke Rehabilitation

Phys Med Rehabil Int. 2018; 5(1): 1140.

Vojta Therapy in Patients with Acute Stroke – A New Approach in Stroke Rehabilitation

Epple C1*,Maurer-Burkhard B2,Lichti MC1and Steiner T1

1Klinikum Frankfurt Höchst, Department of Neurology, Frankfurt am Main, Germany

2University Hospital Heidelberg, Department of Neurology, Heidelberg, Germany

*Corresponding author: Corina Epple, MD, Klinikum Frankfurt Höchst, Department of Neurology, Gotenstrasse 6-8, 65929, Frankfurt am Main, Germany

Received: February 19, 2018; Accepted: March 16, 2018; Published: March 23, 2018

Abstract

Unilateral motor weakness is one of the most common deficits resulting from stroke and one of the main causes of disability. Stroke rehabilitation is multidisciplinary and the aim of physiotherapy should be to promote activation and stabilisation of the remaining innervation and functions of the damaged central nervous system. Scientific evidence demonstrating the values of specific rehabilitation interventions after stroke is limited. It is still unclear, which physiotherapeutic approaches in stroke rehabilitation are most effective. Modern approaches follow the idea that functional improvement to a large extent relies on the use of compensatory movement strategies, enabling patients to learn to cope with their deficits. The Vojta therapy is based on a completely different approach: the reflex locomotion. Vojta described inborn movement sequences of reflex locomotion that are retrievable at all times. The therapist stimulates these innate patterns of movement by applying pressure to defined zones. The therapeutic use of reflex locomotion enables elementary patterns of movement in patients with impaired locomotor system, for example due to brain damage caused by stroke, to be restored once more, assuming that repeated stimulation of these “reflex-like” movements can lead to something like “new networking” within functionally blocked neuronal networks. After Vojta treatment, these patterns are more spontaneously available to the patient. Clinical experience shows, that Vojta therapy improves postural control, uprighting against gravity and goal-directed movements. We will discuss implementation of Votja therapy in stroke rehabilitation and introduce a first ever randomized controlled trial for this approach in stroke rehabilitation.

>Keywords: Stroke rehabilitation; Physical therapy; Vojta therapy; Reflex locomotion; Recovery

Abbreviations

RCT: Randomized Controlled Trial; TCT: Trunk Control Test; CBS: Catherine de Bergego Scale; MESUPES: Motor Evaluation Scale For Upper Extremity In Stroke Patients; NIHSS: National Institute of Health Stroke Scale; mRS: Modified Rankin Scale; BI: Barthel Index; rTMS: Transcranial Magnetic Stimulation; CT: Computed Tomography; MRI: Magnetic Resonance Imaging

Introduction

Stroke is the leading cause of disability among adults [1] and hemiparesis is the most common impairment after stroke [2]. It can be estimated that there will be 23 million first ever strokes in 2030 [3]. There is still a paucity of evidence-based knowledge about recovery and rehabilitation [4], although the evidence base for stroke rehabilitation has grown exponentially over the last 20 years [5]. Acute stroke treatment was revolutionary improved in the last years by implementation of thrombectomy, as a game-changing intervention to inhibit brain damage and has let to remarkable improvement of clinical outcomes. The discovery of a breakthrough intervention in the field of neurorehabilitation improving the potential of true recovery is desirable [6]. We know that stroke rehabilitation delivered in a stroke unit is highly effective and reduces death and dependency [7]. The benefit of stroke units results not only from thrombolysis or thrombectomy, which are suitable for a smaller proportion of all stroke patients, but from the multidisciplinary stroke unit management, including dysphagia management and elements of early neurorehabilitation conducted by physicians, nursing staff, physical therapist, occupational therapist, speech therapist, psychologist and others, including the patients family or caregivers. Stroke rehabilitation is multidisciplinary and has the goal of maximizing function, minimizing impairments, and preventing poststroke complications [8,9]. Unfortunately less is known about the specific or combined interventions and care practices that contribute most to improved outcome [10]. An optimal treatment for patients who had a stroke could not be identified so far, also due to the fact, that only few studies address the question of the optimal physiotherapy in stroke rehabilitation. Furthermore the scientific evidence in stroke rehabilitation comprises of a big amount of methodical incorrect rehabilitation trials [11]. Physical therapy is a complex intervention and many factors may greatly influence outcomes [12].

Most studies on stroke recovery and neurorehabilitation have been conducted in so-called chronic patients, with stroke onset more than 6 months before, probably because these patients are easier to recruit and have a stable baseline [13]. Only few recovery trials have initiated restorative treatments within 7 days [6] after onset and can therefore be classified as acute, as proposed by experts in stroke rehabilitation [14]. There is an ongoing debate about the optimal timing of rehabilitation, although starting rehabilitation early is a widely accepted principle of care for people affected by stroke [15]. Stroke rehabilitation begins during the acute hospitalization, as soon as the diagnosis of stroke is established and lifethreatening problems are under control and there is a growing evidence indicating better outcome of neurorehabilitation in stroke with early initiation of treatment [16]. Delays to the initiation of rehabilitation seem to be associated with a poorer outcome and a longer length of stay in hospital for patients [17], furthermore motor training started around 5 days after stroke is more effective than training started at day 14 or day 30 [18].

The Bobath Concept in Stroke Rehabilitation

Another key question concerning physical therapy in stroke rehabilitation does not apply to timing and duration of therapy, but to the crucial issue of the right approach: which one to use out of the plenty currently available rehabilitation methods. Furthermore the question arises, whether an “ideal approach” is reasonable for all patients who had a stroke with manifold deficits and disabilities in a heterogeneous collective. Numerous meta-analysis and reviews have been conducted in order to evaluate different rehabilitation techniques, however the randomized controlled trials (RCT) that were considered in systematic reviews only contain a small proportion of methods that are used in routine clinical settings.

The Bobath-concept is one of the most widely used approaches in stroke rehabilitation within the western world, although several studies have failed to demonstrate superiority and showed partially even inferiority compared to other physiotherapy approaches [19-21]. In northern America and Scandinavia the Brunnstrom method is more common. Concepts, as well as the proprioceptive neuromuscular facilitation (PNF) and Vojta method have in common that they claim to have a neurophysiological basis, in which facilitation and inhibition play a basic role. The concept of neuronal reorganization aims at preventing the development of pathological movements by recognizing variations of “normal central postural control mechanism” regulations [22]. The Bobath concept was developed from the 1940s on by the physical therapist Berta Bobath and the physician Dr. Karl Bobath. The Bobath treatment aims at normalizing muscle tone and facilitate volitional movement through handling of specific points (trunk, pelvis, shoulders, hands, and feet) in order to guide patients through the initiation and completion of intended tasks [23]. Both, the patient and the therapist need to participate actively during the treatment. Several trials for rehabilitation of upper limb motor impairment in patients with an acute, subacute or chronic stroke indicated, that Bobath therapy is similar or inferior to other rehabilitation approaches (as meaningful task-specific training, constraint-induced movement therapy, motor relearning program, movement science-based physiotherapy). Therefore the Bobath concept has been criticized and at present there are insufficient arguments for integrating Bobath therapy into stroke rehabilitation [23]. As knowledge of neurophysiology has changed, it is no surprise that some of the former explanations may sound outdated. But several modern principles of plasticity and learning can be identified in the concept. Modern approaches follow the idea that functional improvement to a large extent relies on the use of compensatory movement strategies, enabling patients to learn to cope with their deficits.

Vojta Therapy

The Vojta therapy is a type of physical therapy, also called reflex locomotion or Vojta method. Václav Vojta was a Czech neurologist and pediatric neurologist and was born on the 12th July 1917 in Mokrosuky, Bohemia, the Czech Republic. He died on the 12th September 2000 in Munich. Vojta developed the bases of his diagnostics and therapy, between 1950 and 1970, while looking for a treatment for children with cerebral palsy. He observed that these children responded to certain stimuli (gentle pressure placed at specific zones) in certain body positions with recurring motor reactions in the trunk and the extremities. He could activate muscle groups and patterns of movements that were normally not available to the patient and discovered, that children with cerebral palsy treated with this method exhibited better gait, better posture and better speech after therapy [24]. He described inborn global motor patterns of reflex locomotion that are retrievable at all times and can be found in all forms of human locomotion representing the basis for human movement. He assumed that the therapeutic use of reflex locomotion enables elementary patterns of movement in patients with impaired locomotor system, for example due to brain damage by stroke, to be restored, assuming that repeated stimulation of these “reflex-like” movements can lead to something like “new networking” within functionally blocked neuronal networks.

The therapist can activate these innate patterns of movement, by applying pressure to pre-defined zones, in a patient who is in a prone, supine or side lying position. Such stimuli automatically lead to an automatically movement complex in newborns and also in adults and does not require actively willed cooperation. There are ten zones distributed over the trunk, the arms and legs [25-27]. Dependent of the stimulated zone the therapist can provoke regardless of the patient’s age a type of creeping movement and rolling, the so called “reflex creeping” or the “reflex rolling”. Based on the principles of ontogenetic development he defined the postural regulation as a control of body posture and uprighthing of the body against gravity as elementary components of locomotion, as well as goal-oriented movements of the limbs. Vojta believed, that every accurate movement starts from a definite posture and ends in a posture [28], conceding postural control one of the most important goals of therapeutic use of Vojta therapy.

Initially Vojta therapy was applied mostly for newborns with central coordination disorders or spastic movement disoders. Nowadays the neurokinesiological examination techniques are commonly used in pediatrics in order to recognize early motor developmental disturbances in newborns, babies and infants (some times even before they are clinically visual), because an early diagnoses of motor developmental disturbances allows early initiation of therapies, preferentially within the first 6 months of life, and an early treatment offers the best chances of recovery.

Although Vojta reflex locomotion is a sufficient therapeutic method for the promotion of normal posture control and the direct activation of respiratory muscles in children with cerebral palsy [29,30], its application in other diseases has not been studied sufficiently [31].Vojta reflex locomotion has been reported to activate trunk and the deep muscles of the spine to regulate trunk stability and increase spinal rotation force, thereby enhancing postural control [31]. It is widely-used in adults, but concerning neurological diseases there is only some evidence for patients with multiple sclerosis [32] (indicating a positive effect of Vojta therapy) and for patients with paraplegia [33,34].

Vojta in Stroke Rehabilitation: Why?

In newborns with motor developmental disturbances an early initiation of a suitable therapy is highly recommended to prevent the appearance of incorrect movement sequences. For the same reason we think that it is beneficial to start Vojta treatment early after stroke. Furthermore observations in animal models suggest that there is about a month of heightened plasticity in the brain early after stroke, when most recovery from impairment occurs [9,35]. Therefore, there seems to be a limited time window for the greatest motor recovery and increased receptivity to training regimens in stroke rehabilitation.

In 2013 we implemented Vojta therapy into the established treatment concept (predominantly Bobath concept) on our stroke unit. We observed that Vojta therapy improved efficacy of other approaches, working with repetitive exercises by activation of automatic movement patterns and lead to an improvement of postural control, uprighting against gravity and target-oriented movements. Directly after Vojta therapy stroke patients showed an improvement of the posture and movement patterns that showed definable consolidation tendency after a few days on the stroke unit. As an early effect we observed muslce fasciculation in the motoric target area -even in plegic limbs, appearance of movement sensation in neglect regions, as soon as vegetative (piloarective, vasomotoric, sudomotoric) reactions in the therapeutic area. Patients reported of sensoric effects as a heat sensation projected to the periphery, suggesting a systemic effect of Vojta therapy. These clinical observations motivated as to further investigate Vojta therapy in stroke rehabilitaton. To our knowledge Vojta therapy has never been investigated in stroke patients.

Spacial Neglect – A Common Symptom in Stroke but Difficult to Treat

Spatial neglect is a common (in 43% of right brain-lesioned patients and 20% of left brain-lesioned [36]) syndrome following stroke, most frequently of the right hemisphere, predominantly but not exclusively of the parietal lobe. Elements of spatial neglect may also be seen with infarctions of the left hemisphere; however, symptoms are clinically less consistent than in right hemispheric neglect [37]. It is a complex deficit in attention and awareness with the failure to detect, respond, or orient to the stimuli located in the portion of space contralateral to the lesion. The therapeutic process is often prolonged, because neglect patients show slower functional progress during rehabilitation and need longer hospitalization [38,39]. In addition to focal disturbances, an interhemispheric imbalance, with over-activation in the intact hemisphere, is supposed to be of predominant clinical relevance for neglect, following the concept of interhemispheric rivalry [22,39]. Some trials therefore investigated the effect of cortical stimulation addressing the contralesional hemisphere overexcitability as a cerebral pathophysiological mechanism in hemispatial neglect. Beside methodological heterogeneity the authors concluded, that there are promising results for theta-burst stimulation, suggesting that transcranial magnetic stimulation may be a powerful add-on therapy in the rehabilitation of neglect patients [39]. There is also some evidence for sub-acute and chronic stages of stroke for prism adaption as a suitable rehabilitative approach in patients with neglect [40], using prism glasses to create an optical shift of the visual field to the right [41]. Treatments for neglect are often difficult to apply in stroke rehabilitation, due to short duration of effects, patient discomfort, or the difficulty for patients to cooperate [39,42], so that there is an urgent need for a suitable therapeutic approach for neglect. We observed a positive effect of Vojta therapy on neglect, but this has not been investigated systematically yet.

TheVojta Stroke Trial

We designed an investigator-initiated, prospective parallelgroup, single-center, randomized controlled clinical trial to compare Vojta therapy and conventional physiotherapy in patients with acute ischemic or hemorrhagic stroke. This RCT will be the first trial to investigate improvement of postural control due to Vojta therapy in early rehabilitation of patients who had a stroke, which is a very new approach in stroke-rehabilitation. The aim of the trial was to investigate Vojta therapy in acute stroke patients with severe hemiparesis within 72 hours after onset. We hypothesize, that Vojta therapy improves postural control and motor function in early rehabilitation of stroke patients compared to conventional physiotherapy. This trial is registered at ClinicalTrials.gov (NCT03035968) and we obtained ethical approval from the Institutional Research Ethical Review Board (the Hessian Regional Medical Board; Approval Number: FF 88/2015). All potentially eligible patients were screened on the first day after admission to the stroke unit and during the first 72h after stroke onset, in case of deterioration after admission. Eligible patient with written informed consent were enrolled and randomly assigned (1:1) to receive usual stroke unit care with conventional physiotherapy (control group) or Vojta therapy (interventional group). Inclusion and exclusion critera are summarized in table 1.

Citation: Epple C, Maurer-Burkhard B, Lichti MC and Steiner T. Vojta Therapy in Patients with Acute Stroke – A New Approach in Stroke Rehabilitation. Phys Med Rehabil Int. 2018; 5(1): 1140.