Effect of Posture on Ventilatory Muscle Strength
| Autor: | Tomoyo Miyachi, Shimpachiro Ogiwara |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
medicine.medical_specialty
Supine position business.industry Body position Physical Therapy Sports Therapy and Rehabilitation Positive expiratory pressure Sitting Internal medicine Anesthesia mental disorders Muscle strength Cardiology Body positioning Medicine business Expiratory muscle Normal range |
| Zdroj: | Journal of Physical Therapy Science. 14:1-5 |
| ISSN: | 2187-5626 0915-5287 |
| DOI: | 10.1589/jpts.14.1 |
| Popis: | The purpose of this study was to investigate whether body positioning would bring about any change in inspiratory and expiratory muscle strength expressed in terms of maximal negative inspiratory pressure (P Imax) and maximal positive expiratory pressure (PEmax). The PImax and PEmax measurements were carried out on 20 participants in sitting, half lying, `slumped' half lying, supine lying, right side lying, and left side lying. The one-way analysis of variance showed that PImax and PEmax values were within normal range for all positions. It was hypothesized that a significant change in PImax and PEmax would occur with alteration of the body position in healthy persons, but this was proven negative. The findings were similar to those found for people with chest pathologies; that is, the highest PImax and PEmax values were evident in the more erect positions than recumbent positions. Possible reasons and implications for such findings are discussed in terms of the force of gravity acting on the thoracic cage in various body positions and the length-tension relationship of both the inspiratory and expiratory muscles. |
| Databáze: | OpenAIRE |
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