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Commentary on “Effects of Positioning on Respiratory Measures in Individuals With Cerebral Palsy and Severe Scoliosis”

“How can I apply this information in my clinical practice?” Clinical measures of respiratory rate, heart rate, and chest wall excursion do not require expensive equipment or training. An inexpensive pulse oximeter provides therapists with clinically important oxygen saturation and heart rate measures. The number of hospitalizations for respiratory illnesses may also serve as a marker of respiratory health. Therapists can use positioning to promote expansion in areas of limited chest wall mobility, such as the lateral or posterior aspects. Chest physical therapy techniques are valuable augments to positioning. Adaptive physical activity may also improve cardiorespiratory function. Therapists can apply this information to persons with multiple disabilities in settings such as home care, group homes, schools, and skilled nursing facilities. “What should I be mindful about in applying this information?” Therapists should be mindful that the rationale for positioning persons with cerebral palsy with severe mobility limitations and scoliosis should include not only respiratory function but also function of other internal organ systems, skin integrity, soft tissue extensibility, bone density, and comfort. Position changes may also accommodate functional needs, such as using vision and performing cognitive tasks. Using a variety of positions is beneficial. Prone positioning may promote improved respiratory function. Supported standing is another option. Upright positioning may promote social interaction, alertness, vocalization, and use of vision. Although sitting may improve respiratory function, prolonged sitting may compromise muscle length and skin integrity. In assessing vital signs, laying hands on the patient may change parameters such as breathing pattern or depth. The effect of a thoracolumbosacral orthosis must also be considered. The authors noted that these individuals' primary breathing pattern was diaphragmatic. Measuring upper chest, mid-chest, and abdominal expansion may demonstrate the full effects of position changes on chest wall excursion. Therapists should also be mindful of signs of distress, such as changes in facial expression, increased muscle tone, flushing, or pallor. Blood pressure may also need to be monitored. The clinical bottom line for this article may be that persons with cerebral palsy with limited mobility and respiratory compromise should be transitioned into a variety of positions throughout the day. The respiratory status of each individual requires ongoing monitoring to determine optimal positioning. Margaret Barry Michaels, PT, PhD, PCS Slippery Rock University, Slippery Rock, Pennsylvania Theresa M. Crytzer, DPT, ATP Western Pennsylvania School for the Blind University of Pittsburgh, Pittsburgh, Pennsylvania

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Effects of Cochlear Implants on Children's Reading and Academic Achievement

This article presents a critical analysis of empirical studies assessing literacy and other domains of academic achievement among children with cochlear implants. A variety of recent studies have demonstrated benefits to hearing, language, and speech from implants, leading to assumptions that early implantation and longer periods of implant should be associated with higher reading and academic achievement. This review, however, reveals that although there are clear benefits of cochlear implantation to achievement in young deaf children, empirical results have been somewhat variable. Examination of the literature with regard to reading achievement suggests that the lack of consistent findings might be the result of frequent failures to control potentially confounding variables such as age of implantation, language skills prior to implantation, reading ability prior to implantation, and consistency of implant use. Studies of academic achievement beyond reading are relatively rare, and the extent to which performance in such domains is mediated by reading abilities or directly influenced by hearing, language, and speech remains unclear. Considerations of methodological shortcomings in existing research as well as theoretical and practical questions yet to be addressed provide direction for future research.

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Situation Specificity in Attention-Seeking Problem Behavior

Previous research on attention-seeking problem behavior has focused on individuals who misbehaved under general conditions of low adult attention. In general, no detailed analyses were conducted to determine whether different situations involving low levels of adult attention (such as familiar vs. unfamiliar adults, setting events, or the presence or absence of peers) exacerbated or attenuated problem behavior. The current case study demonstrates that, for one adolescent, all situations involving low levels of adult attention were not equally discriminative for problem behavior. Two functional analyses concerning different situations involving low levels of adult attention were conducted. The first analysis consisted of systematically manipulating antecedent and consequence conditions related to adult attention and task demands. This analysis indicated that low levels of adult attention evoked problem behavior. The second analysis involved two different conditions presenting low levels of adult attention. In one, the adult spoke to another child; in the second, the adult spoke to another adult. This second analysis revealed that, when the adult spoke to another adult, problem behavior resulted. However, when the adult spoke to another child, problem behavior did not occur. On the basis of these functional analyses, a positive intervention was designed to reduce problem behavior. Theoretical implications related to functional analysis are discussed, and applied issues concerning functionally based treatment selection are explored.

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