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Background: Being an important physiological and clinical tool in assessing respiratory conditions, it is common knowledge that Peak expiratory flow rate (PEFR) may be affected by some factors affecting the normal function of the respiratory system. Such factors include the body constitution such as height, built, sex, age etc.; The trunk-leg ratio (TLR) was used in apparently normal young adults. A better understanding of the association between Trunk-leg ratio and PEFR may identify those with elevated risk of respiratory diseases. Methods: The study was an analytical cross-sectional design, involving 83 Level 200 MBBS/BDS students of Bayero University, Kano. There were a total of 39 males and 44 females. A peak flow meter and a measuring tape to scale were used to measure the PEFR, trunk length and leg length respectively. A questionnaire was used to determine any history of cardio-respiratory disease A consent of the participants and ethical approval was obtained before the commencement of the study. Original Research Article Adama et al.; ARRB, 30(6): 1-6, 2018; Article no.ARRB.47410 2 Results: The males had higher PEFR value (491.79±67.19L/min) while the females had a lower PEFR of 366.82±43.28L/min and the difference was statistically significant. The males had higher values of trunk length, leg length and TLR and there was no significant different between that male and female trunk length ratio. There was A significant correlation between PEFR and leg length indicating that the longer the leg length, the higher the PEFR. Conclusion and Recommendation: Significant correlation was found between the TLR, which is an anthropometric parameter and the PEFR which is an important diagnostic tool in determination of some types of respiratory diseases. This relationship signifies that the taller the person, irrespective of the trunk length, the higher the PEFR. It is recommended that further studies should be explored involving other anthropometric parameters like trunk-leg volume in future studies.

The Relationship between Trunk Leg Ratio and Peak Expiratory Flow Rate in 200 Level MBBS/BDS Students of Bayero University Kano