Effect of Strength and Endurance Training of Upper Limbs by arm Ergometer on Trunk Conventional of Children with Cerebral Palsy

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Oneof the key features of children with cerebral palsy is deficient postural conventional. During sitting and standing humans voluntarily move their arms; the postural muscles of the lower limbs and trunk conventional posture are activated in advance of the focal muscles that move the arm voluntarily. This type of postural conventional, known as Anticipatory Postural Adjustment (APA), is believed to reduce the effects of forthcoming perturbations caused by voluntary movement on posture and equilibrium [6-8]. APAs thus probably play an important role in adequately performing various voluntary movements while standing. This ‘anticipatory’ contraction of the abdominal muscles is thought to contribute to preparatory stabilization of the spine against reactive forces resulting from the limb movement.

Shoulderand elbow functional movements result in trunk muscle activation which includes trunk flexors, extensors along with quadriceps, gastrocnemius and tibialis anterior. Through repetition, the infant acquires and refines the coordination or movement patterns necessary to achieve the functional action goal. Arm ergometry or arm cycling involves sitting upright in a seat and “pedaling” with the arms. An important advantage of ergometer training over conventional physiotherapy is that patients who are motivated to continue training, can do so themselves, which is an alternative to hand-to-hand therapy, often limited by budget constraints. Though Arm Ergometry is one of the means of upper limb movement no study has been done on the effect of arm ergometry on the trunk conventional of children with cerebral palsy yet.