Neurological Physiotherapy
Neurological physiotherapy is the
treatment of patients who have a neurological disorder. Neurological disorders
are those affecting the brain, spinal cord, and nerves, such as
stroke, MS, and Parkinson's disease. Treatment in neurological
conditions is typically based upon exercises to restore motor function through
attempting to overcome motor deficits and improve motor patterns. To achieve
this aim various theoretical frameworks have been promoted, each based upon
inferences drawn from basic and clinical science research.
Some of the common conditions that are
treated by neurological
physiotherapy are:
- Epilepsy and Seizures
- Alzheimer’s and other dementias
- Strokes
- Migraine and other headaches
- Multiple sclerosis
- Parkinson’s disease
- Neurological infections
- Brain tumors
- Amyotrophic Lateral Sclerosis (ALS)
- Ataxia.
- Bell's Palsy
- Cerebral Aneurysm.
- Epilepsy
- Acute Spinal Cord Injury
- Traumatic conditions of the nervous
system such as head injuries and disorders caused by malnutrition.
Benefits
Physiotherapy treatment will help:
- Make movements easier to achieve that
are precise and goal-directed
- Retrain normal patterns of movement
- Improve ability with everyday activities
- Increase muscle strength
- Increase range of movement
- Improve gross or fine motor skills
- Improve posture
- Increase balance
- Lengthen tight muscles to help decrease spasticity and reduce contractures
- Increase fitness levels and endurance
- Help problems with breathing
- Reduce the risk of chest infections
- Reduce the risk of falling
- Reduce stress and anxiety
- Relieve pain
- Increase independence
- Achieve maximum potential
Equipment
used in Neurological Physiotherapy
The kind of equipment used will
depend on your current symptoms, your housing circumstances, your lifestyle,
and your goals. Neurological physiotherapists often use equipment to teach you
how to do things more safely and effectively and to promote
independence with everyday tasks. Neurological physiotherapists also work
closely with occupational therapists who can provide additional equipment for
you if necessary. Commonly recommended aids and adaptations include:
- Walking sticks
- Crutches
- Zimmer frames
- Gutter frames
- Three-wheeled walkers
- Four-wheeled walkers
- Wheelchairs
- Seating systems
- Pressure relief cushions
- Access ramps
- Bath seats
- Shower seats
- Perching stools
- Kitchen equipment /accessories
- Cups/beakers for easy drinking/swallowing
- Grab rails
- Hoists/slings
- Transfer boards/belts
- Leg lifters
- Bed levers
- Toilet seat raises
- Toilet frames
- Adapted toilets
Treatment
Exercises
Some
treatment exercises are used, often incorporating a selection of the following
as appropriate:
- Stretching
- Strengthening
- Balance re-education
- Gait re-education
- Joint mobilization
- Electrical stimulation
- Postural exercise
- Spasticity management
- Advice/Education on lifestyle, fatigue management, and exercise
Treatment
Techniques
Facilitation
Techniques
Facilitation
and enhancement of muscle activity to achieve improved motor control are the
key tenants of many of the techniques used in neurological rehabilitation, many
of which also utilize neuroplasticity. The Rood Approach, theoretically based
on the Reflex and Hierarchical Model of Motor Control, developed by Margaret
Rood in the 1950s, provides the origin for many of the facilitation techniques
used today in neurological rehabilitation. Rood developed a system of
therapeutic exercises enhanced by cutaneous stimulation for patients with
neuromuscular dysfunctions. In addition to proprioceptive maneuvers such as
positioning, joint compression, joint distraction, and the general use of
reflexes, stretch, and resistance, the greatest emphasis is given to
exteroceptive applications such as stroking, brushing, icing, warmth, pressure,
and vibration to achieve optimal muscular action.
Tapping
"Tapping
is the use of a light force applied manually over a tendon or muscle belly to
facilitate a voluntary contraction".
Tapping is
used to assessing reflex activity with a normal response being a brisk muscle
contraction. Rood recommended three to five taps over the muscle belly to be
facilitated.
Brushing
Fast
brushing, using a battery-operated brush on the skin overlying the muscle, is a
therapeutic technique presented originally by Margeret Rood to facilitate
movement responses and enhance static holding postural extensors.
There is
limited research in terms of the effectiveness of brushing, its long-term use,
its continued effects, or the required rate or duration of brushing or pressure
to be applied.
Cryotherapy - Brief
Ice can be
used to facilitate a muscle response, which uses a combination of coolness and
pain sensation to produce the desired response.
Passive
Stretching - Fast/Quick
Stretch may
be applied in several ways during neurological rehabilitation to achieve
different effects. The types of stretching used include:
Fast / Quick
Prolonged
Maintained
When we look
at the use of stretch for facilitation, we employ a fast/quick stretch. The
fast/quick stretch produces a relatively short-lived contraction of the
agonist's muscle and short-lived inhibition of the antagonist muscle which
facilitates a muscle contraction. It achieves its effect via stimulation of the
muscle spindle primary endings which results in reflex facilitation of the
muscle via the monosynaptic reflex arc.
Joint
Compression
Joint
awareness may be improved by joint compression which will lead to enhancing
motor control. Receptors in joints and muscles are involved with the awareness
of joint position and movement which are stimulated by joint compression. Joint
compression can have both facilitatory and inhibitory effects.
Joint
Compression of the joint surfaces facilitates posture extensors which are
needed to stabilize the body. Compression can be applied slowly to inhibit
muscle control or in a jerky manner to facilitate muscle control. The
application may be done manually and/or by using weight-bearing postures.
Joint
compression can be achieved in two ways:
Light
Compression: Normal body weight being applied through the
long axis of the bone which is thought to inhibit (relax) muscle spasticity
Heavy
Compression: Compression is greater than that applied by body
weight which is thought to facilitate co-contraction at the joint undergoing
compression
Vibration
Muscle
Vibration
Muscle
vibration has been used as a technique to reduce muscle tone and spasticity in
individuals with neurological conditions. Vibrations of the muscle are thought
to increase corticospinal excitability as well as inhibitory neuronal activity
in the antagonistic muscle.
Bishop et al
(1974) identified three motor effects achieved through muscle vibration:
- Sustained contraction of the vibrated muscle via tonic vibration reflex
- Depression of the other neurons innervating the antagonistic muscles via reciprocal inhibition or antagonistic inhibition
- Suppression of the monosynaptic stretch reflexes of the vibrated muscle while being vibrated.
- Questions remain as to whether vibration has any sustained effect on the muscle.
- Muscle Vibration is generally applied directly to the chosen muscle or tendon and may be applied in two ways, High and Low Frequency.
High
Frequency
The
high-frequency vibration is driven by a vibrator that optimally operates at a
frequency of 100 - 200 Hz and an amplitude of 1 – 2 mA. This type of vibration produces
facilitation of muscle contraction through what is known as tonic vibration
reflex. This facilitatory effect is sustained for a brief time after
application. Therefore, it can be used for stimulating muscles whose primary
function is tonic holding.
Low Frequency
The low-frequency stimulation occurring between 5 -50 Hz has an inhibitory effect on muscle through its activation of spindle secondary endings and Golgi tendon organs.
While
Vibration has the potential as a good treatment technique there is still
limited evidence of its effectiveness the therapist must be aware of the
precautions that must be considered when using it as a treatment option which
include:
- Generates heat at the point of application.
- Can potentially damage skin, particularly at high amplitude.
Whole Body
Vibration
Whole body
vibration is a relatively new modality that involves the use of vibration
through standing on a vibrating platform and has been utilized to improve
balance and gait.
Further
studies are needed in well-designed trials with a bigger sample size to
determine the most effective frequency, amplitude, and duration of vibration
application in neurorehabilitation.
Vestibular
Stimulation
The vestibular
stimulation technique is a proprioceptive unique sensory system with a multi-sensory
function. According to the type of stimulus we can use the vestibular system to
achieve many treatment alternatives.
Total body
inhibition can be achieved by slow rocking, slow anterior-posterior movement,
slow horizontal movement, slow vertical movement, and slow linear movement.
Total body
facilitation can be achieved by rolling patterns, a rocking pattern on elbows
and extended elbows, and crawling.
Spinning
induces tonal responses and causes strong facilitation of movement through the
overflow of impulses to higher centers.
Facilitation
of postural extensors is another effect of vestibular stimulation if it is used
rapidly with anterior-posterior or angular acceleration of the head and body
while the cis health d in the prone position.
The inverted
position is commonly used now to achieve total body inhibition, while it may be
used to increase certain extensors.
Vestibular
stimulation is not widely used in neurological rehabilitation. The management
of vestibular dysfunction is recognized as a specialist area within
physiotherapy.
Normalization
of Tone & Maintenance Soft Tissue Length
Passive
Stretching - Slow
Stretch may
be applied in several ways during neurological rehabilitation to achieve
different effects. The types of stretching used include:
Fast / Quick
Prolonged
Maintained
The presence
of increased tone can ultimately lead to joint contracture and changes in
muscle length. When we look at the use of stretch to normalize tone and
maintain soft tissue length, we employ a slow, prolonged stretch to maintain or
prevent loss of range of motion. While the effects are not entirely clear the
prolonged stretch produces inhibition of muscle responses which may help in
reducing hypertonus, e.g., Bobath's neuro-developmental technique, inhibitory
splinting, and casting technique. It appears these influences both neural
components of muscle, via the Golgi Tendon Organs and Muscle Spindles, and the
structural components in the long term, via the number and length of
sarcomeres.
Muscle immobilized
position = Loss of Sarcomeres and Increased Stiffness related to increasing connective
tissue
Muscle immobilized
lengthened position = Increase Sarcomeres
Studies in
Mice show that a stretch of 30 mins daily will prevent the loss of sarcomeres
in the connective tissue of an immobilized muscle, although the timescale in
humans may not relate directly.
Passive
stretching may be achieved through several methods which include:
Manual
Stretching
Prolonged
manual stretch may be applied manually, using the effect of body weight and
gravity, or mechanically, using a machine or splints. Stretch should provide
sufficient force to overcome hypertonicity and passively lengthen the muscle.
Unlikely to provide sufficient stretch to cause a change in a joint that
already has a contracture.
Weight
Bearing
Weight-bearing
has been reported to reduce contracture in the lower limb using Tilt-tables and
standing frames through a prolonged stretch. Angles are key to ends ensuring
knees remain extended during the prolonged stretch as the force exerted on the
knee can be quite high. Some research also challenges the assumption of the
benefits of prolonged standing.
Splinting
“Splints and casts are external devices designed to
apply, distribute, or remove forces to or from the body in a controlled manner
to perform one or both basic functions of control of body motion and alteration
or prevention in the shape of body tissue. Splinting can be used to produce
low-force, long long-duration things although there is a dearth of evidence to
support this. A wide range of splints has been used to influence swelling,
resting posture, spasticity, and active and passive ROM.
Serial
Casting
Serial
casting is a common technique that is used and most effective in managing spasticity-related
contracture. Serial casting is a specialized technique to provide an increased
range of joint motion. The process involves a joint or joints that are tight and
are immobilized with a semi-rigid, well-padded cast. Serial casting involves
repeated applications of casts, typically every one to two weeks as a range of
motion is restored.
The duration
of a stretch to reduce both spasticity and prevent contracture are not yet
clear from the research and requires further research to determine the most
appropriate technique and duration to produce the required effect.
Positioning
Patients
should be given individualized positioning and early mobilization management
plans as soon as possible after a neurological impairment to prevent complications
and regain function. It is based on reducing the effects of gravity on alpha
motor neurons and consequently inhibiting muscle tone. Relaxation achieved by
this technique is not permanent and unless motor learning or central program
adaptation is actualized it is reversible. Hence, modifications in several
systems are required for this treatment to be effective. The effects of muscle
tone on autogenic inhibition, reciprocal innervation, labyrinthic or
somatosensory effects, and cerebellar regulation can be affected. It should be
kept in mind that active participation of the patient is required for the
changes in the CNS to occur and motor learning to take place
Positioning
is used widely to prevent the development of contracture in neurological conditions
and to discourage unwanted reflex activity. After a neurological impairment,
muscles can be affected in various ways, causing pain, spasticity, and problems
with speed and range of motion. One way to minimize these effects is to
properly support, position, and align the body. Proper positioning can be
useful to minimize or prevent pain and stiffness that are commonly present
post-impairment. It can also regain movement that was lost, or limit future
problems with movement. In addition, proper positioning has been shown to
increase awareness and protection of the weaker side of the body. Some common
positions recommended following a stroke:
Positioning
while lying on your back:
Pillows are
placed behind the shoulder, head, weaker arm, and hip. The feet are placed in a
neutral position.
Positioning
while lying on the weaker side:
When lying on
the weaker side, one or two pillows are placed under the head, the weaker
shoulder is positioned comfortably on a pillow, the stronger leg is forward on
one or two pillows, and the weaker leg is straight out. Pillows are also placed
in the back and front of the body.
Positioning
while lying on the stronger side:
One or two
pillows are placed under the head, while the weaker shoulder is placed forward
with the weaker arm supported by pillows. The weaker leg is placed toward the
back of the pillows.
Positioning
while sitting up:
The
individual is seated at the center of the chair or wheelchair, their arms
placed forward onto pillows on their lap or a tablet placed flat on the floor or
footrest that seems bent directly above the feet.
Positioning
while sitting in bed:
Sitting up in
bed is recommended for short periods only as it is better to sit in a chair as
soon as possible. The individual will sit upright, well supported by pillows.
Arms are placed on pillows on either side of the body and legs are extended
comfortably.
Positioning
during transfers:
During
transfers to a chair or from a chair to another chair, positioning the weaker
shoulder and upper arm is important. The weaker arm should always be supported
during transfers, and it is important that most pulls can cause pain in your
shoulder that will be difficult to eliminate once created. For getting out of
bed, it may be useful to install a bar beside your bed bottled you can hold
onto with your stronger arm to help push yourself up to the standing position.
Positioning
while standing and walking:
- While standing up and moving around, slings and supports are used for positioning weaker arms.
- Bed Positioning for Optimum Patient Safety and Comfort Carolinas Rehabilitation
Neutral
Warmth
It is one of
the most common methods used to inhibit postural tone and muscle activity.
Neutral warmth acts by stimulating the thermoreceptors and activating
parasympathetic responses. Usually, 10-20 minutes is a sufficient period to
produce an effect. The application may be by wrapping the body parts with
towels, hot packs, tepid baths, and air splints.
Cryotherapy -
Prolonged
Efferent and
afferent neurotransmission is reduced through prolonged use of ice, which is
effective for the reduction of spasticity. To achieve this, the muscle spindles
need to be cooled requiring that ice is applied until there is no longer an excessive
reflex response to stretching. Effects can last from 1-2 hours providing video
a window of opportunity to work on stretches or exercises that may provide a
more long-lasting effect. The most common method of prolonged icing that is
used is local immersion, which is particularly useful in reducing hand flexor
tone.
Massage
Massage uses
pressure to direct venous and lymphatic flow back towards the heart. It is
therefore important that the movement is always in this direction so that there
is no undue pressure on the closed valves in the veins. These valves prevent the
backflow of blood by only allowing blood to move in one direction (i.e., toward
the heart). As the pressure from the heart pumping subsides and the blood moves
back, the valves close and prevent any further backflow.
Massage may
also be used to stretch muscle fibers. In this case, the direction is not as
important as the strokes are much shorter and therefore pressure in the wrong
direction is not significant enough to cause damage.
Physical
Activity and Exercise
Hydrotherapy
Water
immersion can enhance the retreater’s messianically impaired individuals with
both therapeutic, psychological, and social benefits. Hydrotherapy is the term
used for exercise in warm water and is a popular treatment for patients with
neurologic and musculoskeletal conditions. The goals of this therapy are muscle
relaxation, improving joints m, options, and reducing pain. This therapy has
been used for thousands of years.
Proprioception
Neuromuscular Facilitation
Proprioceptive
Neuromuscular Facilitation (PNF) is a set of stretching techniques commonly
used in clinical environments to enhance both active and passive range of
motion to improve motor performance and aid rehabilitation. PNF is considered
an optimal stretching method when the aim is to increase the range of motion,
especially as regards short-term changes.
Herman Kabat
developed proprioceptive neuromuscular facilitation (PNF) in the 1940s and
further developed Dorothy Voss and Margaret Knott. PNF helps to restore normal
movement by focusing on the developing sequence of movement and how the agonist
and antagonist muscles work together to produce volitional movement. PNF uses
reflexive movement as a basis for learning more volitional movement. The idea
is that one must be able to roll before he can crawl and crawl before he walks.
PNF focuses
on mass movement patterns that are diagonal and resemble functional movement.
The body does not work in parts, but instead as a whole. To promote these mass
movement patterns, PNF uses a multi-sensory approach, incorporating auditory, visual,
and tactile systems. PNF allows the patient to understand what normal movement
feels like using various through the e of manual contacts to cue the patient
and facilitate movement.
Primarily,
PNF treatment techniques focus on three things:
- Increase the motor learning of the agonist through repetition of an activity (repeated contractions) and rhythmic initiation.
- Reverse the motor patterns of the antagonist.
- Two techniques are slow reversal and rhythm stabilization, both of which use an isometric contraction.
Finally,
learning to relax muscles helps to increase the range of motion and decrease
spasticity.
Proposed
mechanisms underlying the PNF stretching response include Autogenic Inhibition
and Reciprocal Inhibition which have traditionally been accepted as the
neurophysiological explanations for the range of movement gains that PNF
stretching achieves over static and ballistic alternatives.
The patterns
of movement associated with PNF are composed of multi-joint, multiplanar,
diagonal, and rotational movements of the extremities, trunk & neck. There
are 2 pairs of foundational movements for the upper extremities: UE D1 flexion
& extension and UE D2 flexion & extension. There are also 2 pairs of
foundational movements for the lower extremities: LE D1 flexion &
extension. Various PNF stretching techniques based on Kabat’s concept are Hold
Relax, Contract Relax, and Contract Relax Antagonist Contract.
Contract relax
Passive placement of the restricted muscle into a position of stretch followed
by an isotonic contraction of the restricted muscle. After the contraction period,
the patient is instructed to relax the restricted muscle that was just
contracting and activate the opposing muscle to move the limb into a greater
position of stretch. Through the Golgi tendon organ, the tight muscle is
relaxed, and allowed to lengthen.
Hold Relax:
Very similar to the Contract Relax technique. This is utilized when the agonist
is too weak to activate properly. The patient's restricted muscle is put in a
position of stretch followed by an isometric contraction of the restricted
muscle. After the allotted time the restricted muscle is passively moved to a
position of greater stretch. This technique utilizes autogenic inhibition,
which relaxes a muscle after a sustained contraction has been applied to it for
longer than 6 seconds.
Contract
Relax Agonist, Antagonist Contract: Usually performed by a
passive or active stretch of the target muscle(s) to move the limb into a
starting position at first, followed by a sub-maximal isometric contraction of
the target muscle, and finally an active stretch is used to move the limb into
a new greater position. This technique uses autogenic and reciprocal
inhibition. Reciprocal inhibition is the main cause of the greatest effect of
this technique versus the other PNF techniques.
Rhythmic
Initiation: Begins with the therapist moving the patient
through the desired move me using a passive range of motion, followed by an active-assistive,
active-resisted range of motion, and finally an active range of motion.
Slow
reversals: This
technique is based on Sherrington's principle of successive induction, i.e.,
that immediately after the flexor reflex is elicited the excitability of the
extensor reflex is increased. This technique is used to strengthen building up
the endurance of weaker muscles and develop coordination and establish the
normal reversal of antagonistic muscles in the performance of the movement.
Aerobic
Exercise
There is an
increasing range of aerobic exercise options being accessed by people with
neurological conditions. These range from aerobic exercise programs (e.g.
overground walking or treadmill training programs) and an array of sporting and
exercise classes to the use of technology (e.g. virtual reality training).
These options, supported by the growing body of evidence, present the therapist
and patient with the ability to select a program for an individual, which is
timely and can be carried out in an appropriate environment.
Treadmill
Training
The incentive
to provide a challenging environment, in which there is an opportunity to
practice repetitively the missing components of gait, has underpinned another
task-specific activity. This involves using a treadmill for gait training and
for improvements in aerobic function. A harness can be used for individuals
with significant functional limitations, and this also offers the opportunity
to grade the amount of body weight support provided. Therapists help to facilitate
alternating stepping and weight-bearing, and as many as three therapists may be
required to assist with the complete gait cycle.
Shepherd and
Carr (1999) argued that there are three reasons why treadmill training can
support gait re-education:
It allows a
complete practice of the gait cycle
It provides
an opportunity for gaining improvements in speed and endurance optimizers
aerobic fitness
Task-specific
optimizes eons a treadmill has also been shown to induce expansion of
subcortical and cortical locomotion areas in individuals following stroke and
spinal cord injury. It can result in an increase in cadence and a shortening of
step length as compared to overground walking.
Pilates
Pilates is a
system of exercises that has evolved from its use with elite dancers to enhance
core, shoulder girdle, and limb control. It can be both mat-based and apparatus
based and is designed to improve physical strength, flexibility, and posture
and enhance mental awareness. While Pilates is used widely for
neurorehabilitation there is limited research on its effectiveness as part of
rehabilitation for patients with neurological impairment.
Tai Chi
Tai Chi is an internal Chinese martial art practiced for both independence training and its health benefits defense originally conceived as a martial art, it is also typically practiced for a variety of other personal reasons: competitive wrestling in the format of pushing hands (tui shou), demonstration competitions, and achieving greater longevity. Built upon mind-body connection, Tai Chi combines rhyming embodiment, meditation, and breathing to induce relaxation and tranquility of the mind, and it improves balance, postural control, movement coordination, strength, and flexibility. In the past decade, a substantial number of studies and reviews have been conducted in the field of the clinical use of Tai Chi.
Recently, the significant effects of Tai Chi on
fibromyalgia and Parkinson’s disease rehabilitation have been confirmed, and
related studies published in the New England Journal of Medicine have brought
great attention to and general agreement on the clinical effects of Tai Chi.
Constraint-Induced
Movement Therapy
The term
Constraint-Induced Movement Therapy (CIMT) describes a package of interventions
designed to decrease the impact of a stroke on the upper-limb (UL) function of
some stroke survivors. It is a behavioral approach to neurorehabilitation based
on "Learned-Nonuse".
CIMT is
typically performed for individuals following a Cerebrovascular Accident as
between 30-66% will experience some functional loss in their impaired limb.
Furthermore, CIMT has also been performed for individuals with Cerebral Palsy,
Traumatic Brain Injury, and Multiple Sclerosis. The aim of CIMT is to improve
and increase the use of the more affected extremity while restricting the use
of the less affected arm.
The three
major components of CIMT include:
- Repetitive, structured, practice intensive therapy in the more affected arm
- Restraint of the less affected arm
- Application of a package of behavioral techniques that transfers gains from the clinical setting to the real world (i.e., making it functional)
Robotics
Over the past decade, rehabilitation hospitals have begun to incorporate robotics technologies into the daily treatment schedule of many patients. These interventions hold greater promise than simply replicating traditional therapy because they allow therapists an unprecedented ability to specify and monitor movement features such as speed, direction, amplitude, and joint coordination patterns and to introduce controlled perturbations into therapy.
Rehabilitation
robotics is a field of research dedicated to understanding and augmenting
rehabilitation through the application of robotic devices. Rehabilitation
robotics includes the development of robotic devices tailored for assisting
different sensorimotor functions (e.g., arm, hand, leg, ankle, development of
different schemes of assisting therapeutic training, and assessment of
sensorimotor performance (ability to move) of the patient; here, robots are
used mainly as therapy aids instead of assistive devices. Rehabilitation using
robotics is generally well tolerated by patients and is an effective adjunct to
therapy in individuals suffering from motor impairments, especially due to
stroke.
With greater
development of robotics within the field of neurorehabilitation, it is now
becoming a real alternative method for enhancing both upper limb and lower limb
function in patients with movement disorders. It is still a relatively new and
emerging area of physiotherapy with limited research to support its use.
Virtual
Reality
Advances in virtual reality technology mean that devices using computer and gaming technology, such as the Nintendo Wii ®, are now found in many people’s homes. The potential of these types of adjuncts to maximize task-orientated practice and increase energy expenditure is beginning to be explored. The use of games using the Nintendo Wii ®, for example, has been shown to increase energy expenditure in a group of asymptomatic participants (Graves et al., 2007; Lanningham-Forster et al., 2009).
Research in individuals with neurological
disorders, such as cerebral palsy, is beginning to emerge (Deutsch et al.,
2008). However, a Systematic Review and Meta-Analysis of Randomized Controlled
Trial analyzing virtual reality's effectiveness to improve functional
performance in patients with Spinal Cord Injury (SCI) showed inconclusive
outcomes suggesting that virtual reality may not be more effective than
conventional physical therapy in improving functional performance in patients
with SCI. A recent systematic review and meta-analysis also show limited
evidence of virtual reality interventions in upper limb motor function recovery
after SCI compared to conventional physical therapy.
Electrotherapy
Transcutaneous
Electrical Nerve Stimulation
Transcutaneous electrical nerve stimulation (TENS) is a method of electrical stimulation that primarily aims to provide a degree of symptomatic pain relief by exciting sensory nerves and thereby stimulating either the pain gate mechanism and/or the opioid system. The different methods of applying TENS relate to these different physiological mechanisms. The effectiveness of TENS varies with the clinical pain being treated, but research would suggest that when used ‘well’ it provides significantly greater pain relief than a placebo intervention. There is an extensive research base for TENS in both the clinical and laboratory settings and whilst this summary does not provide a full review of the literature, the key papers are referenced. It is worth noting that the term TENS could represent the use of ANY electrical stimulation using skin surface electrodes which has the intention of stimulating nerves.
In the clinical
context, it is mostly assumed to refer to the use of electrical stimulation
with the specific intention of providing symptomatic pain relief. If you do a
literature search on the term TENS, do not be surprised if you come across a
whole lot of ‘other’ types of stimulation that technically fall into this
grouping.
Electrical
Stimulation of Muscle
Electrical
Muscle Stimulation (ES) is an assistive technology that can be used to aid the
recovery of the upper limb after a stroke. It uses an electrical current to
stimulate muscle contraction via electrodes, facilitating the movement of a
weakened or paralyzed limb. It has been used since the mid-1960s, traditionally
to aid mobility by addressing dropped-foot, however, more recently it has been
considered a promising treatment modality for upper-limb recovery. ES has also
been used in the treatment of other upper motor neuron impairments including
people with Cerebral Palsy, Parkinson’s Disease, Multiple Sclerosis, and spinal
cord injury.
A randomized
control trial carried out on critically ill traumatic brain injury (TBI)
patients suggests positive outcomes with neuromuscular electrical stimulation
(NMES). This study showed no significant reduction in muscle thickness of the
Tibialis Anterior and Rectus Femoris muscle when NMES was applied for fourteen
consecutive days as compared to the control group who received only
conventional physiotherapy.
Several uses
and benefits have been investigated regarding ES use in stroke upper limb
recovery. These include strengthening weak muscles, increasing range of motion,
reducing spasticity, improving motor control, reducing shoulder subluxation,
reducing pain associated with shoulder subluxation and spasticity, improving
sensory and proprioceptive awareness, and improving effects of botulinum toxin
for management of spasticity. Neuroplasticity is a key concept underpinning
stroke recovery, and the brain can adapt and form new neuro-connections. By
forming these new synapses, motor skills are relearned, and concepts of
sensory-motor learning are founded on this premise. Following a stroke, there
is evidence that the brain has a period of hyper-excitability within the first
weeks after stroke and it is hypothesized that by afferent stimulation central
reorganization can be enhanced by stimulation through a movement that ES may be
able to facilitate. Additionally, there is a large predictive probability (90%)
of return of upper limb function decided within the first 5 weeks, indicating a
critical window for influencing recovery. Evidence supporting the use of ES is
not conclusive.
For more
detailed information about the Electrical Stimulation of Muscle, the specification
only about its use in the recovery of Upper Limb function post-stroke, you can
complete the
Biofeedback
Biofeedback
is the technique of using equipment to reveal to human beings some of their
internal physiological events, normal and abnormal, in the form of visual and
auditory signals to teach them to manipulate these otherwise involuntary or
unfelt events by manipulating the displayed signals. The ultimate purpose is
that the patient gets to know his body signs and that he can control them
consciously. In the first place using biofeedback equipment, afterward even
without.
Further,
neuromuscular training or biofeedback therapy is an instrument-based learning
process that is based on “operant conditioning” techniques. The governing
principle is that any behavior - be it a complex maneuver such as eating or a
simple task such as muscle contraction-when reinforced its likelihood of being
repeated and perfected increases several folds.
Other
Orthotics
The focus on
function in neurorehabilitation necessarily means complex interventions are
used to address body structure, activity, participation, and environmental
issues that may arise. Orthotics, like any tool used in the treatment of a
complex and chronic condition, can target all levels of health at once. It may
be an intervention designed to change body cultures, an intervention to stabilized
stabilize unresponsive so activity can be performed, or an adjunct to enable
participation in a life role such as work. According to Leonard et al, (1989)
an orthosis is a device that, when applied correctly to an appropriate external
surface of the body will achieve one of more of the following:
- Mobilization of Musculoskeletal Segments
- Reduce Axial Loading
- Prevention or Correction of Deformity
- Improved Function
Orthoses are
made from various types of materials including thermoplastic fiber carbon fiber,
metals, elastic, EVA, fabric, or a combination of similar materials. Some
designs may be purchased at a local retailer; others are more specific and
require a prescription from a physician, who will fit the orthosis according to
the patient's requirements. Over-the-counter braces are basic and available in
multiple sizes. They are generally slid on or strapped on with Velcro and are
held tightly in place. One of the purposes of these braces is injury concerning
Neurological Rehabilitation, Orthoses are used predominantly to improve
function and to prevent and/or correct deformity. When using orthotics to
improve function the orthotic should assist the patient to meet specific
functional objectives e.g. improving walking.
Acupuncture
Acupuncture forms part of traditional Chinese medicine (TCM). This ancient system of medicine dates back as far as 1000 years BC and is based on a holistic concept of treatment that regards ill health as a manifestation of an imbalance in the body’s energy. Re-establishing a correct balance is the aim of TCM. Energy is referred to as Qi, (pronounced chee) and is described in terms of Yin energy - quiet and calm and Yang energy - vigorous and exciting. They are complementary opposites and in health exist in a dynamic but balanced state in the body. Practitioners of TCM believe that stimulating certain
Acupuncture points in the
body can help to restore the balance between Yin and Yang that becomes
disturbed in illness. When choosing acupuncture as a means of treatment it is
important to be aware of the contraindications.
String
Wrapping
String
Wrapping, also referred to as Compressive Centripetal Wrapping, was first
promoted by Flowers for the control of low demand and is very useful when
swelling is restricting functional improvement in the hand. It is applied
through firm and continuous wrapping of the swollen limb, from distal to
proximal with a 1-2mm diameter string. A loop is made as the wrapping is
applied and it is the removal of the wrapping by pulling on the free end of the
loop immediately after the wrapping is completed which produces rea duction of
swelling.
















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