Effects of Different Low-Intensity Exercise Types on Duration, Energy Expenditure and Perceived Exertion in Obese Individuals

Mohamed Ali Khanfir, Hassen Ben Awicha, Liwa Masmoudi, Faten Ben Hmadou, Wajdi Dardouri, Sultan Alardan, Sabeur Nouira and Mohamed Zouch
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Mohamed Ali Khanfir: Department of Sport Sciences and Physical Activity, College of Education, University of Hail, Hail 81411, Saudi Arabia
Hassen Ben Awicha: Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
Liwa Masmoudi: Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
Faten Ben Hmadou: Sectorial Center of Medicine and Sports Sciences, Sfax 3000, Tunisia
Wajdi Dardouri: Department of Sport Sciences and Physical Activity, College of Education, University of Hail, Hail 81411, Saudi Arabia
Sultan Alardan: Department of Sport Sciences and Physical Activity, College of Education, University of Hail, Hail 81411, Saudi Arabia
Sabeur Nouira: Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
Mohamed Zouch: Department of Sport Sciences and Physical Activity, College of Education, University of Hail, Hail 81411, Saudi Arabia

IJERPH, 2022, vol. 19, issue 8, 1-10

Abstract: Physical exercise is a common strategy in overweight and obesity management. Exercise type, intensity, duration, energy expenditure and the rate of perceived exertion (RPE) are the essential determinants of exercise efficiency. The purpose of the present study was to compare continuous and intermittent exercises targeted at the maximal fat oxidation intensity (FAT max) in obese individuals. Ten obese males (BMI > 30 kg/m 2 ; age: 19 to 35 years) who maintained a sedentary lifestyle were recruited for this study to perform three separate exhaustive exercises: a continuous exercise at FAT max (CON), an intermittent exercise that alternates two minutes at FAT max −10% with one minute at FAT max +20% (INT½), and a second intermittent exercise that alternates four minutes at FAT max −10% with one minute at FAT max +40% (INT¼). The duration of the INT¼ exercise (65.1 min ± 13.4) was significantly longer than that of the CON exercise (55.4 min ± 6.0). No significant difference in the total amount of energy expenditure was observed across the three types of exercise (CON: 372 Kcal ± 98.2, INT¼: 398 Kcal ± 145.5, INT½: 374.4 Kcal ± 116.1). The fat oxidation rate after 45 min during the INT exercises (INT¼: 93.0 ± 19.1 mg/min, INT½: 71.1 ± 15.6 mg/min) was significantly higher than that of the CON exercise (36.1 ± 12.2 mg/min). The CON exercise was less well tolerated. The rate of perceived exertion (RPE) at the end of the CON (15.8 ± 2) was significantly higher than that of the INT exercises (13.5 ± 2 for the INT¼ and 13.1 ± 1.8 for the INT½). The INT exercises were more efficient in terms of duration, fat oxidation and RPE.

Keywords: obesity; fat max intensity; exhaustive exercise sessions; RPE; energy expenditure; fat oxidation rate (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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