Browsing by Author "Pun, DB"
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Publication Assessment of Cardiopulmonary Fitness and Physical Activity in Health Science Students(Kathmandu University, 2024) Pun, DB; Jha, JP; Magar, BP; Thapa, BABSTRACT Background Insufficient physical activity and poor cardiopulmonary fitness increases the risk of chronic diseases and premature mortality. Sedentary lifestyle is observed among young health science students. Objective To assess cardiopulmonary fitness and physical activity levels among health science students at Jumla. Method A cross-sectional study was conducted on health science students at Karnali Academy, Jumla. Cardiopulmonary fitness was assessed using the Queen’s College Step Test to calculate VO2max. International Physical Activity Questionnaire was applied to measure physical activity in terms of Metabolic Equivalent of Task (MET) value. Data analysis utilized GNU-PSPP software with descriptive and inferential statistics. Result Total 107 students participated (56 females), aged 18-37 years. Their median VO2max was 40.05 ml/kg/min, significantly higher in males [51.69 (IQR 45.81 – 57.57)] than females [36.37 (IQR 34.90 – 38.58)] (p<0.001). Median weekly physical activity was 1030 MET-minutes/week, with males reporting higher levels [1436 (962 - 2670)] than females [678 (414 – 1103)] (p<0.001). VO2max had a positive correlation with total MET value per week (r = 0.504, p<0.001), and negative correlation with body adiposity (p<0.02). Multiple linear regression revealed physical activity level, sex, and BMI as significant predictors of VO2max (p<0.01). Conclusion Health science students at Karnali Academy have average levels of cardiopulmonary fitness and physical activity, lower in females. Targeted interventions can improve their fitness, benefiting the wider population in future. Further research should explore barriers to physical activity and factors influencing healthy lifestyle adoption among health science students in this region. KEY WORDS Exercise, Health occupations, Physical fitness, StudentsPublication The Postural Effects on Electrical Activities of Heart in Apparently Healthy Young Adults(Kathmandu University, 2021) Chaudhary, S; Ranamagar, R; Shrestha, L; Pun, DB; Karmacharya, P; Mahotra, NBABSTRACT Background The electrical activities of heart recorded as electrocardiogram (ECG) are mostly done in supine postures. The body postural changes have effects in these electrical activities in heart which needs to be properly recognized. Objective To find the variations in electrocardiogram during postural changes from supine to upright i.e. sitting and standing postures among apparently healthy young adults. Method A cross sectional study was carried out in Manipal College of Medical Sciences after the institutional ethical clearance. The apparently healthy 30 Nepalese male medical students between 18-25 years of age were enrolled. The electrocardiography was elicited in supine, sitting and standing postures in the participants after 5 minutes’ interval between each procedure in each participant. Result The highest mean amplitudes of Q wave were seen in sitting postures (0.12±0.04 mm), R wave in standing postures (1.46±0.55 mm) and S wave also in standing postures (0.23±0.2 mm). The mean amplitudes of Q and S waves showed statistically significant difference when compared between supine and upright postures. The maximum QRS duration was found while sitting (0.08±0.01 ms)and maximum heart rate in standing posture (82.43±10.59/min). The mean comparison of heart rate was statistically highly significant when compared between supine and standing postures. The mean QRS frontal axis was comparatively increased while standing (64.30±39.29). Conclusion The electrical activities of heart vary during postural changes among apparently healthy young adults. These changes are most prominent when compared between supine and standing postures which urges for careful interpretation of electrocardiogram if it is done in upright postures. KEY WORDS Electrocardiogram, Heart, Postures