Energy cost of isolated resistance exercises across low- to high-intensities

This study aimed to estimate the energy cost across various intensities at eight popular resistance exercises: half squat, 45° inclined leg press, leg extension, horizontal bench press, 45° inclined bench press, lat pull down, triceps extension and biceps curl. 58 males (27.5 ± 4.9 years, 1.78 ± 0.0...

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Bibliographic Details
Published in:PloS one 2017-07, Vol.12 (7), p.e0181311-e0181311
Main Authors: Reis, Victor Machado, Garrido, Nuno Domingos, Vianna, Jeferson, Sousa, Ana Catarina, Alves, José Vilaça, Marques, Mário Cardoso
Format: Article
Language:English
Subjects:
Adult
Aerobics
Biological Oxygen Demand Analysis
Biology and Life Sciences
Body fat
Body mass
Energy
Energy Metabolism
Estimates
Exercise
Group dynamics
Health aspects
Health sciences
Humans
Isometric exercise
Leg
Male
Males
Measurement
Medicine and Health Sciences
Metabolism
Methods
Muscle, Skeletal - physiology
Oxygen - metabolism
Oxygen Consumption
Physical fitness
Physical Sciences
Physical training
Physiological aspects
Physiology
Research and Analysis Methods
Studies
Vanadium oxides
Weightlifting
Young Adult
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Summary:This study aimed to estimate the energy cost across various intensities at eight popular resistance exercises: half squat, 45° inclined leg press, leg extension, horizontal bench press, 45° inclined bench press, lat pull down, triceps extension and biceps curl. 58 males (27.5 ± 4.9 years, 1.78 ± 0.06 m height, 78.67 ± 10.7 kg body mass and 11.4 ± 4.1% estimated body fat) were randomly divided into four groups of 14 subjects each. For each group, two exercises were randomly assigned and on different days, they performed four bouts of 5-min constant-intensity for each of the two assigned exercises: 12%, 16%, 20% and 24% 1-RM. Later, the subjects performed exhaustive bouts at 80% 1-RM in the same two exercises. The mean values of VO2 at the last 30s of exercise at 12, 16, 20 and 24% 1-RM bouts were plotted against relative intensity (% 1-RM) in a simple linear regression mode. The regressions were then used to predict O2 demand for the higher intensity (80% 1-RM). Energy cost rose linearly with exercise intensity in every exercise with the lowest mean values were found in biceps curl and the highest in half squat exercise (p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0181311