Abstract
Energy expenditure during weight training exercises produces great fitness and health benefits for humans, but few studies have investigated energy expenditure directly during weight training. Therefore, in this study, we aimed to determine energy costs during three training sessions consisting of three different exercises. Ten participants were randomly allocated into two groups: an untrained (n = 5, with no weight training experience) and a trained group (n = 5, with some weight training experience). Each participant completed three training sessions on separate days. While wearing a mask for indirect calorimetric measurements, each participant participated in training sessions conducted with three dumbbell exercises: the bent-over row, deadlift, and lunge. Metabolic equivalents (METs), energy expenditure (EE), respiratory exchange ratio (RER), heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and rate of perceived exertion (RPE) were measured. The total energy cost was calculated from the oxygen consumption (VO2) during each exercise. Our results showed that the METs of a single training session were 3.3 for the untrained group and 3.4 for the trained group, while the sum of the EE was 683–688 and 779–840 kcal, respectively. The physiological parameters, such as heart rate (p = 0.001 *) for the lunge and rate of perceived exertion (p = 0.005 *) for the bent-over row, changed significantly in both groups. It was concluded that the exercise protocol of this study involved a moderate intensity of 2.4–3.9 METs. The energy cost of each training exercise was between 179 and 291 kcal.
Highlights
IntroductionWeight training is an important type of exercise for the elderly, general, and athletic populations and is used to enhance body composition along with other aspects of health and performance [1,2]
Based on the study findings, the dumbbell bent-over row, deadlift, and lunge exercises were categorized as light to moderate intensity (2.4–3.9 Metabolic equivalents (METs)), with higher energy costs for the trained group because of the greater training loads and metabolic rates
A previous study that utilized a single set of eight resistance exercises (24 min) for 15 repetition maximum (RM) reported a mean intensity of 3.9 METs [16]
Summary
Weight training is an important type of exercise for the elderly, general, and athletic populations and is used to enhance body composition along with other aspects of health and performance [1,2]. It can reduce body fat, lower blood pressure, enhance cholesterol levels, promote glycemic control, and generally decrease the risk of heart disease [3,4]. Labeled water is the gold standard to assess TEE because of its high degree of accuracy, and indirect calorimetry is commonly used to track EE in healthy and diseased people over time [14]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
