Maximal expiratory pressure in residential and non-residential school children.

ABSTRACT

OBJECTIVE: Maximal Expiratory Pressure (MEP) is a powerful indicator for respiratory muscle strength, which reflects the ability of a person to cough effectively. METHODS: The present study was designed on healthy respiratory symptom free children of a Residential - Sainik (50) and Non-Residential (44) school children (aged 12-14 yrs) of Bijapur, to evaluate MEP in relation to their physical anthropometry. MEP (mm Hg) was determined by using a modified Black's apparatus, which is significantly higher in Residential-Sainik school children in comparison to Non-Residential school children (p < 0.01). RESULTS: In both groups, MEP showed positive correlation with height (Residential, r = 0.72, p < 0.001; Non-Residential, r = 0.73, p < 0.001); weight (Residential, r = 0.73, p < 0.001; Non-Residential, r = 0.69, p < 0.001), BSA (Residential, r = 0.79, p < 0.001; Non-Residential, r = 0.72, p < 0.001) and BMI (Residential, r = 0.48, p < 0.01; Non-Residential, r = 0.34, p < 0.05), and also revealed a higher MEP in children with greater chest expansion. CONCLUSION: Possibly, routine physical exercise in residential Sainik school children attribute to their better respiratory muscle strength.