EXERCISE LABILITY INDEX – A RELIABLE INDICATOR OF RESPIRATORY STATUS IN ASYMPTOMATIC INDIVIDUALS

DR. LEENA GANDHARVA; DR. (MRS) MAMONI DIHINGIA

Volume : VII, Issue : IX, September - 2017

EXERCISE LABILITY INDEX – A RELIABLE INDICATOR OF RESPIRATORY STATUS IN ASYMPTOMATIC INDIVIDUALS

Dr. Leena Gandharva, Dr. Mrs Mamoni Dihingia

Abstract :

Quality air is a basic need for our healthy well being. But with modernization, the environmental pollutants are increasing to an alarming level day by day. Bronchial lability is an inherited characteristic of the airways which demonstrates in response to various factors, such as allergy, exercise, drugs etc. The response of the airways to exercise is biphasic: initial onchodilation then onchoconstriction.

The objective of the study was to find the Exercise Lability Index (ELI) in healthy individuals.

A cross sectional study was done among 210 healthy adults (aged 18–35yrs).

The Harvard Step test was conducted to induce exercise. Lung function test was performed with computerized spirometer (Medspiror). ELI was calculated using formula –

ELI (PEFR) = Highest PEFR – Lowest PEFR X 100

Initial PEFR value

ELI > 22 is being considered abnormal.

Out of total 210 subjects, 32 subjects (15.24 %) had high ELI–PEFR values.

The study depicted that high ELI was prevalent in the study population, though there was no history of any symptoms, which indicates some degree of pulmonary ventilatory impairment