Pars Journal of Medical Sciences

Prediction of the maximal voluntary ventilation(MVV) in healthy students of school Jahrom medical

Authors

Abstract

Introduction: The aim of the present study was to measure the maximum of voluntary ventilation(MVV) in healthy students of Jahrom medical School and investigate the relationship between FEV1 with MVV.


Methods: One-hundred thirty-one healthy students (79 female and 52 male) aged between 18-24 years comprised the study sample. The FEV1 and MVV of the subjects were measured with a recording spirometer. The MVV was determined using the closed-circuit technique. The MVV assessed for 15 S and value were calculated obtain L/min. Linear regression analysis was used to develop equations to predict MVV with FEV1 as predictor variable.


Results : The mean MVV (± SD) in males was 106.5 ± 36.9 L/min  and in females 71.97 ±  20.5 L/min. MVV in Jahrom students were less than those reported for some Asian countries. When MVV was regressed on FEV1 , The following predictive equations obtained:

MVV= 28.1 × FEV1 (female) ,  MVV= 28.95 × FEV1 (male)


Conclusions: MVV in Jahrom Medical School students were less than to those reported for some Asian countries. The MVV  correlate closely with  FEV1. We have also shown that by using predictor equations and FEV1 as predictor variable, MVV predict accurately

Keywords

1) Neder J.A., Andreoni S., Lerario MC, Nery LE. Reference values for lung function tests . II. Maximal Respiratory pressures and voluntary ventilation. Braz.J MedBiol . res.June: 1999; 32 (6) :719 – 727 . 2) Ai ching kor, kian chung ong, Arul Eamest and Yee tang wang . Prediction of the maximal voluntary ventilation in healthy adult Chinese subjects. Respirology. 2004 ;9(1): 76 . 3) Rasool QI, Jabeen S , Munnan DA. Maximum voluntary ventilation values in young kashmiri adults through electronic spirometery. J K.practitioner. 2001 ; 5(4) : 235 – 236 . 4) Lavietes MH,Clifford E,Silverstein D,Stier F,Reichman LB. Relationship of static respiratory muscle pressure and maximum voluntary ventilation in normal subjects. Respiration. 1979 ; 38 (3) : 121 – 6 . 5) Ful Ton JE,Pivarnik JM,Taylor WC, et al. Prediction of maximum voluntary ventilation (MVV) in African – American adolescent girls. Pediar pulmonl:1995; 20(4) : 225 -33 . 6) Vijayan VK,Sankaran k ,Venkatesan P, Kuppurao KV.Prediction equation for maximal voluntary ventilation in no smoking normal subjects in madras. Indian J physiol pharmacol : 1993 ; 37(2) : 138 -40. 7) Sultan A. Meo. Dose responses of years of exposure on lung function in flour mill workers .J Occup Health: 2004 ; 46: 187-191. 8) Lindgren I, Muller B, Gaensler EA. Pulmonary impairment and disability claims.JAMA: 1965 ;194: 499-506. 9) Ferris BG.Epidemiology standardization project.Am Rev Respir Dis: 1978; 118:1-120.