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Indian Journal of Clinical Anatomy and Physiology


Impact of exercise training on peak expiratory flow rate in relation to body mass index – An Indian perspective


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Author Details: Gayatri Bora, G. K. Sudhir, K. N. Narasimha Swamy

Volume : 4

Issue : 1

Online ISSN : 2394-2126

Print ISSN : 2394-2118

Article First Page : 34

Article End Page : 39


Abstract

Background: Overweight has a considerable impact on spirometry variables which are thought to be improvised by isotonic exercise and diet regime – though the combined effects have not been investigated and precisely proved as yet. We hypothesized that programmed exercise training improves the Peak expiratory flow rate in overweight, more so if there is associated weight loss.
Objective: The objective was to investigate and evaluate the effect of dynamic exercise and dietary weight-loss program of 12 weeks on the Body mass index and Peak expiratory flow rate in overweight adolescents.
Settings and Design: Adichunchanagiri Institute of Medical Sciences, Karnataka. A cross-sectional pilot study.
Materials and Methods: Dynamic lung parameter, Peak expiratory flow rate, was measured in 20 overweight boys and in equal number of age and gender matched normal weight controls using computerized spirometer (BPL APREMIS 3.1).
Statistical analysis used: Collected data were statistically treated using the SPSS software.
Results – Body mass index and pre training baseline Peak expiratory flow rate revealed very significant difference (P< 0.001) between the two groups. Following 12 weeks of regular aerobic exercise combined with calorie restricted diet protocol, the experimental group showed a longer pulmonary endurance. Overall 19.6% improvement in Peak expiratory flow rate was observed in the high-BMI participants. The pre- and post-training changes in the Body mass index amongst the overweight, was statistically significant (P = 0.0350) with 25% i.e., five boys achieving healthy weight limit.
Conclusion: Body mass index, restricted diet and exercise are concomitantly affecting Peak expiratory flow rate result. The results indicate that exercise training with a restricted diet not only improved respiratory fitness but more so the Body mass index in the overweight adolescents.

Keywords:
Body Mass Index, Overweight, Exercise, Diet, Peak Expiratory Flow Rate, Spirometry