Perbedaan Rerata Nilai Volume Ekspirasi Paksa Detik Pertama (VEP1) terhadap Kebiasaan Merokok dan Olahraga Mahasiswa Universitas Muhammadiyah Surakarta
Background : Value of FEV1 is the most commonly used index to examine respiratory dysfunctions, as it is easy and effective clinically. Smoking habits and exercise include factors that affect respiratory functions. Substances of cigarrete smoke can cause irritation of respiratory tract, while regular exercise can increases respiratory muscles. Aim : To understand difference mean value of FEV1 to smoking habits and exercise in students of Muhammadiyah Surakarta University. Methods : This is an observational analytical study with a cross-sectional approach and purposive sampling technique. The sample size consists of 31 smoker athletes, 31 non-smoker athletes, 31 smoker non-athletes and 31 non-smoker non-athletes; all of whom qualified restriction criteria. Measurement performed using spirometry. Data analysis was performed by two way anova using a computer software. Results: Based on data analysis, there were significant difference mean value of FEV1 to smoking habits (p=0.000) and mean value of FEV1 to excercise (p=0.002). There were no interaction between smoking habits and excercise to mean value of FEV1 (p=0.365). The most statistically significant difference are non-smoker athlete and smoker non-athlete (p=0.000). Conclusion: There is significant difference mean value of forced expiratory volume in the first second (FEV1) to smoking habits and exercise between smoker non-athletes with non-smoker athletes, non-smoker non-athletes, smoker athletes and non-smoker athletes with smoker athletes
