Ventilatory function in Malay Muslims during normal activity and the Ramadan fast.

Area of Science:

• Respiratory Physiology
• Clinical Medicine
• Islamic Studies

Background:

• Understanding the physiological impact of religious practices like fasting is crucial.
• Previous research on Ramadan's effect on lung function is limited, especially in specific ethnic groups.
• Accurate pulmonary function prediction formulae are essential for clinical diagnosis and research.

Purpose of the Study:

• To investigate the effects of Ramadan fasting on pulmonary function parameters in a Malay Muslim population.
• To assess the applicability of existing lung function prediction formulae to this demographic.
• To determine if dehydration during fasting impacts ventilatory functions.

Main Methods:

• Pulmonary function tests were conducted on Malay Muslim subjects under normal and Ramadan fasting conditions.
• Various established lung function prediction formulae (Caucasian, African, Singaporean) were evaluated for their validity in this population.
• Statistical analyses were performed to compare results between fasting and non-fasting states.

Main Results:

• No significant changes were observed in ventilatory functions despite water deprivation and dehydration during Ramadan.
• Pulmonary prediction formulae derived from Caucasian and African populations showed poor applicability.
• Lung function prediction equations from neighboring Singaporean populations demonstrated applicability to the Malay Muslim subjects.

Conclusions:

• Ramadan fasting, including dehydration, does not significantly impair pulmonary function in Malay Muslims.
• Existing lung function prediction formulae require ethnic and geographic consideration for accurate application.
• Singaporean lung function prediction equations are recommended for use in Malay Muslim populations.