@article{2bbdbd3484fd4697a7d5dc16cb04af0e,
title = "High-intensity interval training improves physical performance without C-reactive protein (CRP) level alteration in overweight sedentary women",
abstract = "A sedentary lifestyle is associated with an unhealthy diet and lack of physical activity. This study aimed to analyze the effect of high-intensity interval training (HIIT) on changes in VO2max and C-reactive protein (CRP) levels in overweight young adult women with a sedentary lifestyle. The subjects included 20 women who were 21–30 years old and divided into 2 groups, a treatment group (performed HIIT) and a control group. Physical exercise (bicycle) included an intensity of 90% of the maximum heart rate (HRmax) with intervals. The exercise was carried out by pedaling an ergocycle for 10 s at a speed of 100 rpm and 50 s at a speed of 50 rpm intermittently for a total of 20 min. Exercise was performed 3×/week or 8 sessions in 3 weeks. The measured variables included VO2max and CRP level. These were taken before (pre) and after (post) treatment. VO2max was measured by the Astrand–Rhyming Test with a bicycle ergometer, and CRP was analyzed using the ELISA method. In addition, the changes in VO2max and CRP levels were also calculated. These results showed that the VO2max after treatment with HIIT (35.2±2.12 ml/kg/min) was significantly higher (p<0.05) compared to the control (28.9±2.58 ml/kg/min). The CRP levels (ng/mL) in the control was increased, and it tended to decrease with HIIT; however, this difference was not significant (p≥0.05). This study concludes that bicycling HIIT can improve the VO2max and decrease the serum CRP level in overweight young adult women who lead a sedentary lifestyle.",
keywords = "CRP, HIIT, VO2max, bicycle, healthy lifestyle, overweight, sedentary",
author = "Vigriawan, {Gosy Endra} and Putri, {Eka Arum Cahyaning} and Rejeki, {Purwo Sri} and Ema Qurnianingsih and Kinanti, {Rias Gesang} and Mohamed, {Mohd Nahar Azmi} and Lilik Herawati",
note = "Funding Information: The effect of bicycling in High-Intensity Interval Training (HIIT) on the fitness component (VO2max) proved to be effective in improving physical fitness in overweight young adult women with a sedentary lifestyle. It can be caused by the improvement of the cellular metabolic function. However, HIIT has no effect on the CRP levels, it only tends to reduce in the HIIT group. Eight sessions bicycling in HIIT may have a minor effect on triggering the antiinflammation mediator which hinder the CRP. The noteworthy increase in VO2max and the trivial decreasing CRP levels illustrates that physical exercise, especially bicycling HIIT, can be a chosen activity as recommended exercise for overweight women with a sedentary lifestyle. However, further studies are needed regarding the addition of exercise sessions and other mechanisms of anti-inflammatory and pro-inflammatory mediators. Conflicts of Interest No potential conflicts of interest relevant to this article are reported. Acknowledgements This study was supported by the Ministry of Research, Technology and Higher Education, Indonesia. We are grateful to the Sports Health Science Study Program and the Physiology Department, Faculty of Medicine, Universitas Airlangga for facilitating the administration and preparation process. We also express our gratitude to the Faculty of Sport Sciences, Malang State University for technical assistance during this study. Funding Information: This study was supported by the Ministry of Research, Technology and Higher Education, Indonesia. We are grateful to the Sports Health Science Study Program and the Physiology Department, Faculty of Medicine, Universitas Airlangga for facilitating the administration and preparation process. We also express our gratitude to the Faculty of Sport Sciences, Malang State University for technical assistance during this study. Publisher Copyright: {\textcopyright} 2022, Editura Universitatii din Pitesti. All rights reserved.",
year = "2022",
month = feb,
doi = "10.7752/jpes.2022.02055",
language = "English",
volume = "22",
pages = "442--447",
journal = "Journal of Physical Education and Sport",
issn = "2247-8051",
publisher = "Editura Universitatea din Pitesti",
number = "2",
}
