REFERENCE VALUES OF RESPIRATORY MUSCLES STRENGTH IN HEALTHY ADULT EGYPTIAN POPULATION

Abstract

Background: The strength of the respiratory muscles can be evaluated from static measurements of maximal mouth inspiratory pressure and maximal mouth expiratory pressure. Although these data could be suitable for a number of clinical and research applications, no previous studies have provided reference values for such tests using a healthy, randomly selected sample of the adult Egyptian. Objectives: to establish a set of predictive values of maximal inspiratory pressure and maximal expiratory pressure for a randomized sample of adult Egyptian to report inspiratory muscle strength and expiratory muscles strength in large groups of healthy adult Egyptian to be used as references values among those populations. Methods: I 000 volunteers from staff and students in faculty of physical therapy October 6 University; 388 female and 612 male. Their age was ranging between 20 and 25 years, with normal body mass index (20-24) Kg/m 2 • All subjects were strongly urged to make maximum inspiratory (Muelier maneuver) and expiratory (Valsalva maneuver) efforts through the respiratory pressure meter device and the maximum value of three from seven repetitions that vary by less than 20% was recorded. The results: there were significant statistical differences between normal values of adults Egyptians and other international published values. Conclusion: the set of predicted values of respiratory muscles strength in healthy adult Egyptian are differed (more or less) from international published values.