Physiology and Pharmacology
Physiol Pharmacol
Medical Sciences
http://ppj.phypha.ir
32
journal32
24765236
24765244
10.61186/phypha
(previous ISSN: 17350581)
en
jalali
1402
1
1
gregorian
2023
4
1
27
1
online
1
fulltext
en
Respiratory Exchange Ratio in Obese and Non- obese Sedentary Indian Young Adults in Moderate-and Vigorous-intensity Exercise
Respiratory Physiology/Pharmacology
Respiratory Physiology/Pharmacology
Experimental research article
Experimental research article
<div style="text-align: justify;"><strong>Introduction:</strong> Respiratory exchange ratio (RER) is the ratio between produced CO2 and used O2 for body metabolism. It indicates the type of fuel that is metabolized in the body. This study aimed to measure and compare the RER in non-obese and obese sedentary young adults in rest, moderate-intensity, and vigorous-intensity exercise.<br />
<strong>Methods:</strong> This cross-sectional study was conducted with 23 non-obese and 24 obese sedentary young adults. Resting RER was measured with 12-h fasting after 15-min rest with an automated gas analyzer. Then, RER was measured during steady moderate-intensity and vigorous-intensity exercise on a cycle ergometer. RER was compared between males and females, non-obese and obese in resting, moderate-intensity, and vigorous-intensity exercise by t-test.<br />
<strong>Results:</strong> The Mean age of the non-obese and obese groups was 19.35±1.11 and 19.79±0.78 years, respectively. Males showed higher RER (in resting and moderate-intensity exercise) than females. In comparison to non-obese group, the obese group showed higher RER in resting (0.802±0.018 versus 0.821±0.022, P=0.001), moderate-intensity exercise (0.812±0.013 versus 0.83±0.02, P<0.001), and vigorous-intensity exercise (0.853±0.43 versus 0.914±0.032, P<0.001). Concerning resting value, RER significantly increased during moderate- and vigorous-intensity exercise in both the non-obese and obese groups.<br />
<strong>Conclusion: </strong>Obese young adults use relatively more carbohydrates as fuel than non-obese in both resting conditions and during exercise. When the intensity of exercise increased, both obese and non-obese showed higher RER which indicates that sedentary young adults use relatively more carbohydrates as fuel in the higher grade of exercise.</div>
Adipose tissue, Carbohydrates, Diet, Obesity, Respiratory quotient, Young adult.
16
27
http://ppj.phypha.ir/browse.php?a_code=A-10-1625-1&slc_lang=en&sid=1
Debasish
Das
3200319475328460032792
3200319475328460032792
No
Department of Physiology, Fakir Mohan Medical College and Hospital, Balasore, Odisha, India
Amit Kumar
Das
3200319475328460032793
3200319475328460032793
No
Department of Medicine, Nil Ratan Sircar Medical College, Kolkata, West Bengal, India
Shaikat
Mondal
3200319475328460032794
3200319475328460032794
No
Department of Physiology, Raiganj Government Medical College and Hospital, Raiganj, West Bengal, India
Himel
Mondal
physiology@smcbangla.com
3200319475328460032795
3200319475328460032795
Yes
Department of Physiology, All India Institute of Medical Sciences, Deoghar, Jharkhand, India
Rabindranath
Majumder
3200319475328460032796
3200319475328460032796
No
Centre of Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, West Bengal, India