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Whole-body Vibration in Spastic Hemiplegic Cerebral Palsy

2019-09-18 03:27:51 | BioPortfolio

Summary

To target spasticity, balance and mobility whole body vibration exercises along with selected physical therapy is given to experimental group. Control group will receive only selected physical therapy that includes sstretching exercises, gait training, ffacilitation of postural reactions, ffacilitation of standing and weight shift and facilitation of standing balance by using a balance board.

Description

Cerebral palsy is the most common childhood disabilities affecting individual's posture and movement. Cerebral palsy is a disorder that causes activity limitations attributed to non-progressive disturbances of the foetal or infant brain that may also affect sensation, perception, cognition, communication, and behavior. Cerebral palsy (CP) results from damage to the developing central nervous system while in utero, during delivery, or during the first two years of life.

The most common movement disorder in Cerebral palsy is a spastic paresis, defined as a posture and movement-dependent tone regulation disorder.The most common signs of the disorder are spasticity, rigidity, muscle weakness, ataxia, balance and movement disorders. Compared to the typically developed children, these children have impaired sensation and increased muscle tone therefore they have trouble voluntarily controlling their muscles. Cerebral Palsy can be grouped based on the motor effects it has on the individual, these can include spastic Cerebral palsy or non-spastic Cerebral palsy. Spastic Cerebral Palsy is the most common type and is associated with tight or contracted muscles.

Cerebral Palsy is more prevalent in more deprived socio-economic populations. Cerebral palsy is a disease that globally has a prevalence of 2 to 3 cases per 1,000 live born neonates. An increase in the prevalence of CP was also seen in low birth weight survivors from the Mersey region of the United Kingdom for the same period. Pilot studies of severe mental retardation conducted in selected populations in Pakistan and India have reported extraordinarily high prevalence estimates in the range of 12-24 /1,000 Spasticity may be defined as a motor disorder characterised by a velocity-dependent exaggeration of stretch reflexes resulting from abnormal intraspinal processing of primary afferent input. The impaired sensation and increase in tone leads to wide range in movement dysfunction. About seventy to eighty percent of children with Cerebral Palsy demonstrate spastic clinical features. Many children with cerebral palsy (CP) have poor walking abilities and manipulation skills. One contributing factor to their problems with gait and reaching movement is poor balance control. Balance control is important as it helps a child to recover from unexpected balance disturbances.Currently, there are many options for the management of spasticity, balance disturbances and risk of fall that includes physical modalities, oral pharmacologic agents, peripheral injectables, intrathecal agents, and surgical interventions, however mostly physical therapy is commonly preferable treatment that includes stretching, NDT, Proprioceptive neuromuscular facilitations,strength training and gait training.

Dynamic mechanical loading of the skeleton is an arduous task and troublesome to induce in children who suffer from severe cerebral palsy. The lack of dynamic weight bearing in this population predisposes them to reduced bone mineral density (BMD) and pre-mature osteoporosis. These children are also more prone to muscle weakness, which contributes to pain, deformity and functional loss. Whole-body vibration training was proposed as a new therapeutic modality for the treatment of the gross motor function, balance and functional performance Whole body vibration (WBV), for which the participant stands on a vibrating platform, delivers low-frequency, low-amplitude mechanical stimuli that enter the human body via the feet. The vibrations stimulate the muscle spindles and alpha motor neuron sending nerve impulses to initiate muscle contractions according to the tonic vibration reflex. Compared to the repetitive passive movement, this WBV protocol adds a muscle strengthening component to the anti-spastic effects. Activity restrictions in spastic cerebral palsy are mainly due to poor postural control. Many interventions like resisting exercises, therapeutic horseback riding, electrical stimulations leads to short term posture and balance improvement. Training using vibration platforms adjunct to exercise has shown to be effective in increasing strength resulting in improved balance and coordination. Whole body vibration has shown to be effective in reducing lower limb spasticity after first application of WBV with a vibration frequency of 12 Hz to 18 Hz ( 2-3 m of amplitude ) for 9 minutes and a significant decrease in tone is observed and even the functional mobility and balance is improved.. During all of the vibration-training sessions, the children will wear the gymnastic shoes to standardize the damping of the vibration due to footwear.

There is paucity in the literature regarding evidence for the safe and effective use of vibration intervention in children with or without pathology and has great effects in spasticity, mobility and improving balance.Chia-Ling Chen concluded that the WBV is an effective intervention for controlling spasticity and improving ambulation. Villarreal et al.showed that 20-week WBV therapy had positive effects on the balance of DS adolescents, although only under specific conditions, with vision and somatosensory input altered.

In previous studies high dosage of whole body vibration has both positive and negative effects. Because this type of treatment seems to improve bone health, The purpose of this intervention is to ensure functional independence in cerebral palsy patients. Whole Body Vibration Therapy has proven to be effective in improving balance by reducing spasticity and improving muscle strength. It is essential to explore new interventions for patients specially for cerebral palsy in whom functional independence is impaired thus their mobility is restricted leading to secondary complications. In my study my goal is to use combination of conventional physical therapy with whole body vibration which can control spasticity and enhance ambulatory performance.

Study Design

Conditions

Cerebral Palsy, Spastic

Intervention

Group 1 Experimental group, Group 2 Control group

Location

Riphah International University
Islamabad
Federal
Pakistan
46000

Status

Not yet recruiting

Source

Riphah International University

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-09-18T03:27:51-0400

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Medical and Biotech [MESH] Definitions

A heterogeneous group of nonprogressive motor disorders caused by chronic brain injuries that originate in the prenatal period, perinatal period, or first few years of life. The four major subtypes are spastic, athetoid, ataxic, and mixed cerebral palsy, with spastic forms being the most common. The motor disorder may range from difficulties with fine motor control to severe spasticity (see MUSCLE SPASTICITY) in all limbs. Spastic diplegia (Little disease) is the most common subtype, and is characterized by spasticity that is more prominent in the legs than in the arms. Pathologically, this condition may be associated with LEUKOMALACIA, PERIVENTRICULAR. (From Dev Med Child Neurol 1998 Aug;40(8):520-7)

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