Comparison of excess post-exercise oxygen consumption of different exercises in normal weight obesity women.

Won-Sang Jung,Kiwon Lim,Hun-Young Park,Jisu Kim,Hyejung Hwang

doi:10.20463/jenb.2019.0013

Won-Sang Jung, Kiwon Lim + Show 3 more

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https://doi.org/10.20463/jenb.2019.0013

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Abstract

[Purpose]The purpose of this study was to compare the excess post-exercise oxygen consumption (EPOC) between different types of exercises in women with normal weight obesity (NWO).[Methods]Nine university students with NWO having body mass index <25 kg/m2 and body fat percentage >30% participated in the study. First, continuous exercise (CEx) on an ergometer for 30 minutes at 60% of maximal oxygen consumption (VO2max) and interval exercise (IEx) at 80% VO2max for 2 minutes were performed. This was followed by exercise performed at 40% VO2max for 1 minute and at 80% VO2max for 3 minutes, performed 6 times repeatedly for a total of 26 minutes. The accumulation of short duration exercise (AEx) was performed for 3-bouts of 10 minutes each at 60% VO2max.[Results]The major findings were as follows: energy consumption during the exercises showed no significant difference between CEx, IEx, and AEx; EPOC was higher in IEx and AEx as compared to CEx for all dependent variables (e.g. total oxygen consumption, total calorie, summation of heart rate, and EPOC duration); and the lipid profile showed no significant difference.[Conclusion]Our study confirmed that when homogenizing the energy expenditure for various exercises in NWO individuals, EPOC was higher in IEx and AEx than in CEx. Therefore, IEx and AEx can be considered as effective exercise methods for increasing energy expenditure in NWO females.

Highlights

A new syndrome called normal weight obesity (NWO) among young Korean women has attracted attention
This study showed that the calorie expenditure during exercise was not significantly different between Continuous aerobic exercise (CEx), Interval exercise (IEx), and accumulation of short duration exercise (AEx) (p = .444, see Figure 1)
The EPOC results were higher for IEx and AEx as compared to CEx for all variables: total VO2 (8028.42 ± 4856.21 vs. 13252.18 ± 4546.30 vs. 18037.22 ± 8970.81, respectively, p < .05), total VO2/kg (145.36 ± 87.53 vs. 238.19 ± 71.09 vs. 326.57 ± 164.30, respectively, p < .05), total Kcal (38.81 ± 23.06 vs. 63.54 ± 21.39 vs. 88.57 ± 43.03, respectively, p < .01), and summation of heart rate (HR) (2451.27 ± 1688.98 vs. 4435 ± 1688.76 vs. 5076.33± 2484.06, respectively, p < .05)

Summary

Introduction

A new syndrome called normal weight obesity (NWO) among young Korean women has attracted attention. NWO is a combination of normal weight (BMI 18.5-24.9 kg/m2) with increased body fat percentage (BF% >30%), and is often seen in women in their twenties[2,3]. This can be attributed to the prevalence of wrong diets among these women, who focus only on external appearances and weight loss by cutting down on food intake without exercise[1,2]. NWO is not a physically apparent obesity because of the normal range BMI, but the decreased muscle mass and increased visceral fat is noticeable[4,5]. Since NWO in women in their twenties could be susceptible to various metabolic and cardiovascular diseases due to decreased muscle mass and increased visceral fat, active efforts should be made to prevent and improve metabolic diseases and cardiovascular diseases by increasing muscle mass and decreasing fat

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